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author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-03-07 13:57:24 +0100 |
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committer | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-03-07 13:57:24 +0100 |
commit | 249b6bae56fc18f4512fe5bc085f71cc235c0735 (patch) | |
tree | 89cf28b0e13c85f0a04d216121cbdafdf9668ba0 /crypto/ahash.c | |
parent | 59d9ddb192bc424cc53e52180478001af4fb99a4 (diff) | |
parent | c7ee969dff58a7f5e447e27fe064e2d1ce81d574 (diff) | |
download | linux-crypto-249b6bae56fc18f4512fe5bc085f71cc235c0735.tar.gz linux-crypto-249b6bae56fc18f4512fe5bc085f71cc235c0735.zip |
Merge tag 'v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Linux 4.16-rc4
Diffstat (limited to 'crypto/ahash.c')
-rw-r--r-- | crypto/ahash.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/crypto/ahash.c b/crypto/ahash.c index 3a35d67d..266fc1d6 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -193,11 +193,18 @@ int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { unsigned long alignmask = crypto_ahash_alignmask(tfm); + int err; if ((unsigned long)key & alignmask) - return ahash_setkey_unaligned(tfm, key, keylen); + err = ahash_setkey_unaligned(tfm, key, keylen); + else + err = tfm->setkey(tfm, key, keylen); + + if (err) + return err; - return tfm->setkey(tfm, key, keylen); + crypto_ahash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY); + return 0; } EXPORT_SYMBOL_GPL(crypto_ahash_setkey); @@ -368,7 +375,12 @@ EXPORT_SYMBOL_GPL(crypto_ahash_finup); int crypto_ahash_digest(struct ahash_request *req) { - return crypto_ahash_op(req, crypto_ahash_reqtfm(req)->digest); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + + if (crypto_ahash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) + return -ENOKEY; + + return crypto_ahash_op(req, tfm->digest); } EXPORT_SYMBOL_GPL(crypto_ahash_digest); @@ -450,7 +462,6 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm) struct ahash_alg *alg = crypto_ahash_alg(hash); hash->setkey = ahash_nosetkey; - hash->has_setkey = false; hash->export = ahash_no_export; hash->import = ahash_no_import; @@ -465,7 +476,8 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm) if (alg->setkey) { hash->setkey = alg->setkey; - hash->has_setkey = true; + if (!(alg->halg.base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY)) + crypto_ahash_set_flags(hash, CRYPTO_TFM_NEED_KEY); } if (alg->export) hash->export = alg->export; @@ -649,5 +661,16 @@ struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask) } EXPORT_SYMBOL_GPL(ahash_attr_alg); +bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg) +{ + struct crypto_alg *alg = &halg->base; + + if (alg->cra_type != &crypto_ahash_type) + return crypto_shash_alg_has_setkey(__crypto_shash_alg(alg)); + + return __crypto_ahash_alg(alg)->setkey != NULL; +} +EXPORT_SYMBOL_GPL(crypto_hash_alg_has_setkey); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Asynchronous cryptographic hash type"); |