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[IPSEC]: Use HMAC template and hash interface

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This patch converts IPsec to use the new HMAC template.  The names of
existing simple digest algorithms may still be used to refer to their
HMAC composites.

The same structure can be used by other MACs such as AES-XCBC-MAC.

This patch also switches from the digest interface to hash.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2006-08-20 14:24:50 +10:00
parent e9d41164e2
commit 07d4ee583e
8 changed files with 157 additions and 96 deletions
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include/net/xfrm.h
+5 -4
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@@ -984,12 +984,13 @@ extern struct xfrm_algo_desc *xfrm_aalg_get_byname(char *name, int probe);
extern struct xfrm_algo_desc *xfrm_ealg_get_byname(char *name, int probe);
extern struct xfrm_algo_desc *xfrm_calg_get_byname(char *name, int probe);
struct crypto_tfm;
struct hash_desc;
struct scatterlist;
typedef void (icv_update_fn_t)(struct crypto_tfm *, struct scatterlist *, unsigned int);
typedef int (icv_update_fn_t)(struct hash_desc *, struct scatterlist *,
unsigned int);
extern void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
int offset, int len, icv_update_fn_t icv_update);
extern int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *tfm,
int offset, int len, icv_update_fn_t icv_update);
static inline int xfrm_addr_cmp(xfrm_address_t *a, xfrm_address_t *b,
int family)