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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2016-09-01 14:25:42 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-10-31 04:13:59 -0600
commit2b1309856d5b4604bf0aaa403ee674fe6a6880d6 (patch)
treea72c58bd83d780ab707565b2b72a6855187f0e92
parent5171c1660e9c0d9ed1a44ada59a45b85eb1f2ef6 (diff)
crypto: arm/ghash-ce - add missing async import/export
commit ed4767d612fd2c39e2c4c69eba484c1219dcddb6 upstream. Since commit 8996eafdcbad ("crypto: ahash - ensure statesize is non-zero"), all ahash drivers are required to implement import()/export(), and must have a non-zero statesize. Fix this for the ARM Crypto Extensions GHASH implementation. Fixes: 8996eafdcbad ("crypto: ahash - ensure statesize is non-zero") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/arm/crypto/ghash-ce-glue.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/crypto/ghash-ce-glue.c b/arch/arm/crypto/ghash-ce-glue.c
index 03a39fe29246..9d9ba9acdddc 100644
--- a/arch/arm/crypto/ghash-ce-glue.c
+++ b/arch/arm/crypto/ghash-ce-glue.c
@@ -226,6 +226,27 @@ static int ghash_async_digest(struct ahash_request *req)
}
}
+static int ghash_async_import(struct ahash_request *req, const void *in)
+{
+ struct ahash_request *cryptd_req = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+
+ desc->tfm = cryptd_ahash_child(ctx->cryptd_tfm);
+ desc->flags = req->base.flags;
+
+ return crypto_shash_import(desc, in);
+}
+
+static int ghash_async_export(struct ahash_request *req, void *out)
+{
+ struct ahash_request *cryptd_req = ahash_request_ctx(req);
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+
+ return crypto_shash_export(desc, out);
+}
+
static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key,
unsigned int keylen)
{
@@ -274,7 +295,10 @@ static struct ahash_alg ghash_async_alg = {
.final = ghash_async_final,
.setkey = ghash_async_setkey,
.digest = ghash_async_digest,
+ .import = ghash_async_import,
+ .export = ghash_async_export,
.halg.digestsize = GHASH_DIGEST_SIZE,
+ .halg.statesize = sizeof(struct ghash_desc_ctx),
.halg.base = {
.cra_name = "ghash",
.cra_driver_name = "ghash-ce",