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ah: Remove obsolete code

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

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steffen Klassert 2009-10-07 22:49:57 +00:00 committed by David S. Miller
parent 8631e9bdfe
commit 2ad9afbf5c
1 changed files with 3 additions and 26 deletions
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29
include/net/ah.h
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@ -1,44 +1,21 @@
#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)