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kernel/linux-imx6_3.14.28/include/net/ah.h 435 Bytes
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  #ifndef _NET_AH_H
  #define _NET_AH_H
  
  #include <linux/skbuff.h>
  
  /* This is the maximum truncated ICV length that we know of. */
  #define MAX_AH_AUTH_LEN	64
  
  struct crypto_ahash;
  
  struct ah_data {
  	int			icv_full_len;
  	int			icv_trunc_len;
  
  	struct crypto_ahash	*ahash;
  };
  
  struct ip_auth_hdr;
  
  static inline struct ip_auth_hdr *ip_auth_hdr(const struct sk_buff *skb)
  {
  	return (struct ip_auth_hdr *)skb_transport_header(skb);
  }
  
  #endif