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Commit 2ad9afbf authored by Steffen Klassert's avatar Steffen Klassert Committed by David S. Miller
Browse files

ah: Remove obsolete code 



ah4 and ah6 are converted to ahash now, so we can remove the
code for the obsolete hash algorithm.

Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8631e9bd

include/net/ah.h

+3 −26
Original line number Diff line number Diff line 
#ifndef _NET_AH_H

#define _NET_AH_H



#include <linux/crypto.h>

#include <net/xfrm.h>

#include <linux/skbuff.h>



/* This is the maximum truncated ICV length that we know of. */

#define MAX_AH_AUTH_LEN	12



struct crypto_ahash;



struct ah_data

{

	u8			*work_icv;

	int			icv_full_len;

	int			icv_trunc_len;



	struct crypto_hash	*tfm;

	struct crypto_ahash	*ahash;

};



static inline int ah_mac_digest(struct ah_data *ahp, struct sk_buff *skb,

				u8 *auth_data)

{

	struct hash_desc desc;

	int err;



	desc.tfm = ahp->tfm;

	desc.flags = 0;



	memset(auth_data, 0, ahp->icv_trunc_len);

	err = crypto_hash_init(&desc);

	if (unlikely(err))

		goto out;

	err = skb_icv_walk(skb, &desc, 0, skb->len, crypto_hash_update);

	if (unlikely(err))

		goto out;

	err = crypto_hash_final(&desc, ahp->work_icv);



out:

	return err;

}



struct ip_auth_hdr;



static inline struct ip_auth_hdr *ip_auth_hdr(const struct sk_buff *skb)