ah.h

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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