include/net/esp.h

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