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path: root/arch/x86/crypto/sha-mb/sha1_mb.c
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Diffstat (limited to 'arch/x86/crypto/sha-mb/sha1_mb.c')
-rw-r--r--arch/x86/crypto/sha-mb/sha1_mb.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/x86/crypto/sha-mb/sha1_mb.c b/arch/x86/crypto/sha-mb/sha1_mb.c
index a841e9765bd6..a8a0224fa0f8 100644
--- a/arch/x86/crypto/sha-mb/sha1_mb.c
+++ b/arch/x86/crypto/sha-mb/sha1_mb.c
@@ -762,6 +762,38 @@ static int sha1_mb_async_digest(struct ahash_request *req)
return crypto_ahash_digest(mcryptd_req);
}
+static int sha1_mb_async_export(struct ahash_request *req, void *out)
+{
+ struct ahash_request *mcryptd_req = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
+
+ memcpy(mcryptd_req, req, sizeof(*req));
+ ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
+ return crypto_ahash_export(mcryptd_req, out);
+}
+
+static int sha1_mb_async_import(struct ahash_request *req, const void *in)
+{
+ struct ahash_request *mcryptd_req = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
+ struct crypto_shash *child = mcryptd_ahash_child(mcryptd_tfm);
+ struct mcryptd_hash_request_ctx *rctx;
+ struct shash_desc *desc;
+
+ memcpy(mcryptd_req, req, sizeof(*req));
+ ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
+ rctx = ahash_request_ctx(mcryptd_req);
+ desc = &rctx->desc;
+ desc->tfm = child;
+ desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+
+ return crypto_ahash_import(mcryptd_req, in);
+}
+
static int sha1_mb_async_init_tfm(struct crypto_tfm *tfm)
{
struct mcryptd_ahash *mcryptd_tfm;
@@ -796,8 +828,11 @@ static struct ahash_alg sha1_mb_async_alg = {
.final = sha1_mb_async_final,
.finup = sha1_mb_async_finup,
.digest = sha1_mb_async_digest,
+ .export = sha1_mb_async_export,
+ .import = sha1_mb_async_import,
.halg = {
.digestsize = SHA1_DIGEST_SIZE,
+ .statesize = sizeof(struct sha1_hash_ctx),
.base = {
.cra_name = "sha1",
.cra_driver_name = "sha1_mb",