linux/include/net/ipcomp.h
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   1#ifndef _NET_IPCOMP_H
   2#define _NET_IPCOMP_H
   3
   4#include <linux/types.h>
   5
   6#define IPCOMP_SCRATCH_SIZE     65400
   7
   8struct crypto_comp;
   9
  10struct ipcomp_data {
  11        u16 threshold;
  12        struct crypto_comp * __percpu *tfms;
  13};
  14
  15struct ip_comp_hdr;
  16struct sk_buff;
  17struct xfrm_state;
  18
  19int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb);
  20int ipcomp_output(struct xfrm_state *x, struct sk_buff *skb);
  21void ipcomp_destroy(struct xfrm_state *x);
  22int ipcomp_init_state(struct xfrm_state *x);
  23
  24static inline struct ip_comp_hdr *ip_comp_hdr(const struct sk_buff *skb)
  25{
  26        return (struct ip_comp_hdr *)skb_transport_header(skb);
  27}
  28
  29#endif
  30
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