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crypto: chcr - Fix fallback key setting 

Set key of fallback tfm for rfc4309.

Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Harsh Jain 2017-06-15 12:43:40 +05:30 committed by Herbert Xu
parent 2512a62414
commit 4dbeae4237
1 changed files with 11 additions and 1 deletions
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10
drivers/crypto/chelsio/chcr_algo.c
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@ -2211,6 +2211,7 @@ static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key,
{
struct chcr_context *ctx = crypto_aead_ctx(aead);
struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
int error;
if (keylen < 3) {
crypto_tfm_set_flags((struct crypto_tfm *)aead,
@ -2218,6 +2219,15 @@ static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key,
aeadctx->enckey_len = 0;
return -EINVAL;
}
crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) &
CRYPTO_TFM_REQ_MASK);
error = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
crypto_aead_clear_flags(aead, CRYPTO_TFM_RES_MASK);
crypto_aead_set_flags(aead, crypto_aead_get_flags(aeadctx->sw_cipher) &
CRYPTO_TFM_RES_MASK);
if (error)
return error;
keylen -= 3;
memcpy(aeadctx->salt, key + keylen, 3);
return chcr_ccm_common_setkey(aead, key, keylen);