root/include/net/ah.h

#ifndef _NET_AH_H
#define _NET_AH_H

#include <linux/skbuff.h>

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