1#ifndef _NET_AH_H 2#define _NET_AH_H 3 4#include <linux/skbuff.h> 5 6/* This is the maximum truncated ICV length that we know of. */ 7#define MAX_AH_AUTH_LEN 64 8 9struct crypto_ahash; 10 11struct ah_data { 12 int icv_full_len; 13 int icv_trunc_len; 14 15 struct crypto_ahash *ahash; 16}; 17 18struct ip_auth_hdr; 19 20static inline struct ip_auth_hdr *ip_auth_hdr(const struct sk_buff *skb) 21{ 22 return (struct ip_auth_hdr *)skb_transport_header(skb); 23} 24 25#endif 26