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[CRYPTO] users: Use crypto_hash interface instead of crypto_digest

Telusuri Sumber 
This patch converts all remaining crypto_digest users to use the new
crypto_hash interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2006-08-24 19:10:20 +10:00
orang tua dc64ddf491
melakukan 3505868791
6 mengubah file dengan 97 tambahan dan 69 penghapusan
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34
drivers/net/ppp_mppe.c
Melihat File

@@ -65,12 +65,13 @@ MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE));
MODULE_VERSION("1.0.2");
static void
static unsigned int
setup_sg(struct scatterlist *sg, const void *address, unsigned int length)
{
sg[0].page = virt_to_page(address);
sg[0].offset = offset_in_page(address);
sg[0].length = length;
return length;
}
#define SHA1_PAD_SIZE 40
@@ -97,7 +98,7 @@ static inline void sha_pad_init(struct sha_pad *shapad)
*/
struct ppp_mppe_state {
struct crypto_blkcipher *arc4;
struct crypto_tfm *sha1;
struct crypto_hash *sha1;
unsigned char *sha1_digest;
unsigned char master_key[MPPE_MAX_KEY_LEN];
unsigned char session_key[MPPE_MAX_KEY_LEN];
@@ -137,14 +138,21 @@ struct ppp_mppe_state {
*/
static void get_new_key_from_sha(struct ppp_mppe_state * state, unsigned char *InterimKey)
{
struct hash_desc desc;
struct scatterlist sg[4];
unsigned int nbytes;
setup_sg(&sg[0], state->master_key, state->keylen);
setup_sg(&sg[1], sha_pad->sha_pad1, sizeof(sha_pad->sha_pad1));
setup_sg(&sg[2], state->session_key, state->keylen);
setup_sg(&sg[3], sha_pad->sha_pad2, sizeof(sha_pad->sha_pad2));
nbytes = setup_sg(&sg[0], state->master_key, state->keylen);
nbytes += setup_sg(&sg[1], sha_pad->sha_pad1,
sizeof(sha_pad->sha_pad1));
nbytes += setup_sg(&sg[2], state->session_key, state->keylen);
nbytes += setup_sg(&sg[3], sha_pad->sha_pad2,
sizeof(sha_pad->sha_pad2));
crypto_digest_digest (state->sha1, sg, 4, state->sha1_digest);
desc.tfm = state->sha1;
desc.flags = 0;
crypto_hash_digest(&desc, sg, nbytes, state->sha1_digest);
memcpy(InterimKey, state->sha1_digest, state->keylen);
}
@@ -204,11 +212,13 @@ static void *mppe_alloc(unsigned char *options, int optlen)
goto out_free;
}
state->sha1 = crypto_alloc_tfm("sha1", 0);
if (!state->sha1)
state->sha1 = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(state->sha1)) {
state->sha1 = NULL;
goto out_free;
}
digestsize = crypto_tfm_alg_digestsize(state->sha1);
digestsize = crypto_hash_digestsize(state->sha1);
if (digestsize < MPPE_MAX_KEY_LEN)
goto out_free;
@@ -233,7 +243,7 @@ static void *mppe_alloc(unsigned char *options, int optlen)
if (state->sha1_digest)
kfree(state->sha1_digest);
if (state->sha1)
crypto_free_tfm(state->sha1);
crypto_free_hash(state->sha1);
if (state->arc4)
crypto_free_blkcipher(state->arc4);
kfree(state);
@@ -251,7 +261,7 @@ static void mppe_free(void *arg)
if (state->sha1_digest)
kfree(state->sha1_digest);
if (state->sha1)
crypto_free_tfm(state->sha1);
crypto_free_hash(state->sha1);
if (state->arc4)
crypto_free_blkcipher(state->arc4);
kfree(state);