user/sven/linux.git/crypto/cryptd.c, branch v4.9.293

crypto: hash - annotate algorithms taking optional key

2018-02-25T10:05:43Z

commit a208fa8f33031b9e0aba44c7d1b7e68eb0cbd29e upstream. We need to consistently enforce that keyed hashes cannot be used without setting the key. To do this we need a reliable way to determine whether a given hash algorithm is keyed or not. AF_ALG currently does this by checking for the presence of a ->setkey() method. However, this is actually slightly broken because the CRC-32 algorithms implement ->setkey() but can also be used without a key. (The CRC-32 "key" is not actually a cryptographic key but rather represents the initial state. If not overridden, then a default initial state is used.) Prepare to fix this by introducing a flag CRYPTO_ALG_OPTIONAL_KEY which indicates that the algorithm has a ->setkey() method, but it is not required to be called. Then set it on all the CRC-32 algorithms. The same also applies to the Adler-32 implementation in Lustre. Also, the cryptd and mcryptd templates have to pass through the flag from their underlying algorithm. Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

crypto: cryptd - pass through absence of ->setkey()

2018-02-17T12:21:15Z

commit 841a3ff329713f796a63356fef6e2f72e4a3f6a3 upstream. When the cryptd template is used to wrap an unkeyed hash algorithm, don't install a ->setkey() method to the cryptd instance. This change is necessary for cryptd to keep working with unkeyed hash algorithms once we start enforcing that ->setkey() is called when present. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

crypto: cryptd - initialize child shash_desc on import

2016-09-07T13:04:36Z

When calling .import() on a cryptd ahash_request, the structure members that describe the child transform in the shash_desc need to be initialized like they are when calling .init() Cc: stable@vger.kernel.org Signed-off-by: Ard Biesheuvel Signed-off-by: Herbert Xu

crypto: cryptd - Use correct tfm object for AEAD tracking

2016-08-31T14:50:40Z

The AEAD code path incorrectly uses the child tfm to track the cryptd refcnt, and then potentially frees the child tfm. Fixes: 81760ea6a95a ("crypto: cryptd - Add helpers to check...") Reported-by: Sowmini Varadhan Signed-off-by: Herbert Xu

crypto: cryptd - Add helpers to check whether a tfm is queued

2016-06-23T10:29:52Z

This patch adds helpers to check whether a given tfm is currently queued. This is meant to be used by ablk_helper and similar entities to ensure that no reordering is introduced because of requests queued in cryptd with respect to requests being processed in softirq context. The per-cpu queue length limit is also increased to 1000 in line with network limits. Signed-off-by: Herbert Xu

crypto: cryptd - Assign statesize properly

2015-12-04T14:29:53Z

cryptd_create_hash() fails by returning -EINVAL. It is because after 8996eafdc ("crypto: ahash - ensure statesize is non-zero") all ahash drivers must have a non-zero statesize. This patch fixes the problem by properly assigning the statesize. Signed-off-by: Rui Wang Signed-off-by: Herbert Xu

crypto: cryptod - use crypto_skcipher_type() for getting skcipher type

2015-11-27T13:22:18Z

The provides inline function - crypto_skcipher_type(). Let's use it in the cryptd_alloc_ablkcipher() instead of direct calculation. Signed-off-by: Alexander Kuleshov Signed-off-by: Herbert Xu

crypto: aead - Remove CRYPTO_ALG_AEAD_NEW flag

2015-08-17T08:53:53Z

This patch removes the CRYPTO_ALG_AEAD_NEW flag now that everyone has been converted. Signed-off-by: Herbert Xu

crypto: cryptd - Remove reference to crypto_aead_crt

2015-08-17T08:53:46Z

Pretty soon the crypto_aead encrypt/decrypt hooks will disappear as they are now always identical to those in struct aead_alg. This patch replaces the references to these hooks with the ones from aead_alg instead. Signed-off-by: Herbert Xu

crypto: cryptd - Propagate new AEAD implementation flag

2015-07-14T06:56:45Z

This patch allows the CRYPTO_ALG_AEAD_NEW flag to be propagated. Signed-off-by: Herbert Xu