LXR linux/include/net/esp.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _NET_ESP_H
   3#define _NET_ESP_H
   4
   5#include <linux/skbuff.h>
   6
   7struct ip_esp_hdr;
   8
   9static inline struct ip_esp_hdr *ip_esp_hdr(const struct sk_buff *skb)
  10{
  11        return (struct ip_esp_hdr *)skb_transport_header(skb);
  12}
  13
  14struct esp_info {
  15        struct  ip_esp_hdr *esph;
  16        __be64  seqno;
  17        int     tfclen;
  18        int     tailen;
  19        int     plen;
  20        int     clen;
  21        int     len;
  22        int     nfrags;
  23        __u8    proto;
  24        bool    inplace;
  25};
  26
  27int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
  28int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
  29int esp_input_done2(struct sk_buff *skb, int err);
  30int esp6_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
  31int esp6_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
  32int esp6_input_done2(struct sk_buff *skb, int err);
  33#endif
  34