crypto: hash: add afalg-backend hash support

Adds afalg-backend hash support: introduces some private APIs
firstly, and then intergrates them into qcrypto_hash_afalg_driver.

Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/crypto/hash.c b/crypto/hash.c
index c43fd874fa..ac59c63d5f 100644
--- a/crypto/hash.c
+++ b/crypto/hash.c
@@ -46,6 +46,23 @@ int qcrypto_hash_bytesv(QCryptoHashAlgorithm alg,
                         size_t *resultlen,
                         Error **errp)
 {
+#ifdef CONFIG_AF_ALG
+    int ret;
+
+    ret = qcrypto_hash_afalg_driver.hash_bytesv(alg, iov, niov,
+                                                result, resultlen,
+                                                errp);
+    if (ret == 0) {
+        return ret;
+    }
+
+    /*
+     * TODO:
+     * Maybe we should treat some afalg errors as fatal
+     */
+    error_free(*errp);
+#endif
+
     return qcrypto_hash_lib_driver.hash_bytesv(alg, iov, niov,
                                                result, resultlen,
                                                errp);