Commit 38799498 authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Greg Kroah-Hartman

crypto: arm/ghash-ce - add missing async import/export

commit ed4767d6 upstream.

Since commit 8996eafd ("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: 8996eafd ("crypto: ahash - ensure statesize is non-zero")
Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent eaf23c11
......@@ -220,6 +220,27 @@ 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)
{
......@@ -268,7 +289,10 @@ 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",
......
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