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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 10:52:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 10:52:09 -0800
commit37dc79565c4b7e735f190eaa6ed5bb6eb3d3968a (patch)
tree4f20cc3c9240c5759f72bf560b596a809173ee29 /crypto/asymmetric_keys
parent894025f24bd028942da3e602b87d9f7223109b14 (diff)
parent1d9ddde12e3c9bab7f3d3484eb9446315e3571ca (diff)
downloadlinux-37dc79565c4b7e735f190eaa6ed5bb6eb3d3968a.tar.bz2
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "Here is the crypto update for 4.15: API: - Disambiguate EBUSY when queueing crypto request by adding ENOSPC. This change touches code outside the crypto API. - Reset settings when empty string is written to rng_current. Algorithms: - Add OSCCA SM3 secure hash. Drivers: - Remove old mv_cesa driver (replaced by marvell/cesa). - Enable rfc3686/ecb/cfb/ofb AES in crypto4xx. - Add ccm/gcm AES in crypto4xx. - Add support for BCM7278 in iproc-rng200. - Add hash support on Exynos in s5p-sss. - Fix fallback-induced error in vmx. - Fix output IV in atmel-aes. - Fix empty GCM hash in mediatek. Others: - Fix DoS potential in lib/mpi. - Fix potential out-of-order issues with padata" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (162 commits) lib/mpi: call cond_resched() from mpi_powm() loop crypto: stm32/hash - Fix return issue on update crypto: dh - Remove pointless checks for NULL 'p' and 'g' crypto: qat - Clean up error handling in qat_dh_set_secret() crypto: dh - Don't permit 'key' or 'g' size longer than 'p' crypto: dh - Don't permit 'p' to be 0 crypto: dh - Fix double free of ctx->p hwrng: iproc-rng200 - Add support for BCM7278 dt-bindings: rng: Document BCM7278 RNG200 compatible crypto: chcr - Replace _manual_ swap with swap macro crypto: marvell - Add a NULL entry at the end of mv_cesa_plat_id_table[] hwrng: virtio - Virtio RNG devices need to be re-registered after suspend/resume crypto: atmel - remove empty functions crypto: ecdh - remove empty exit() MAINTAINERS: update maintainer for qat crypto: caam - remove unused param of ctx_map_to_sec4_sg() crypto: caam - remove unneeded edesc zeroization crypto: atmel-aes - Reset the controller before each use crypto: atmel-aes - properly set IV after {en,de}crypt hwrng: core - Reset user selected rng by writing "" to rng_current ...
Diffstat (limited to 'crypto/asymmetric_keys')
-rw-r--r--crypto/asymmetric_keys/public_key.c28
1 files changed, 4 insertions, 24 deletions
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index 3cd6e12cfc46..d916235d6cf5 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -57,29 +57,13 @@ static void public_key_destroy(void *payload0, void *payload3)
public_key_signature_free(payload3);
}
-struct public_key_completion {
- struct completion completion;
- int err;
-};
-
-static void public_key_verify_done(struct crypto_async_request *req, int err)
-{
- struct public_key_completion *compl = req->data;
-
- if (err == -EINPROGRESS)
- return;
-
- compl->err = err;
- complete(&compl->completion);
-}
-
/*
* Verify a signature using a public key.
*/
int public_key_verify_signature(const struct public_key *pkey,
const struct public_key_signature *sig)
{
- struct public_key_completion compl;
+ struct crypto_wait cwait;
struct crypto_akcipher *tfm;
struct akcipher_request *req;
struct scatterlist sig_sg, digest_sg;
@@ -131,20 +115,16 @@ int public_key_verify_signature(const struct public_key *pkey,
sg_init_one(&digest_sg, output, outlen);
akcipher_request_set_crypt(req, &sig_sg, &digest_sg, sig->s_size,
outlen);
- init_completion(&compl.completion);
+ crypto_init_wait(&cwait);
akcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG |
CRYPTO_TFM_REQ_MAY_SLEEP,
- public_key_verify_done, &compl);
+ crypto_req_done, &cwait);
/* Perform the verification calculation. This doesn't actually do the
* verification, but rather calculates the hash expected by the
* signature and returns that to us.
*/
- ret = crypto_akcipher_verify(req);
- if ((ret == -EINPROGRESS) || (ret == -EBUSY)) {
- wait_for_completion(&compl.completion);
- ret = compl.err;
- }
+ ret = crypto_wait_req(crypto_akcipher_verify(req), &cwait);
if (ret < 0)
goto out_free_output;