From 17d589becc1a66934e55a4e2efffdd3876d56130 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
Date: Wed, 30 Oct 2024 10:09:30 +0000
Subject: [PATCH] crypto: perform runtime check for hash/hmac support in gcrypt
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gcrypto has the ability to dynamically disable hash/hmac algorithms
at runtime, so QEMU must perform a runtime check.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: cheliequan <cheliequan@inspur.com>
---
 crypto/hash-gcrypt.c | 2 +-
 crypto/hmac-gcrypt.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/crypto/hash-gcrypt.c b/crypto/hash-gcrypt.c
index d3bdfe5633..2b6dbd97bb 100644
--- a/crypto/hash-gcrypt.c
+++ b/crypto/hash-gcrypt.c
@@ -42,7 +42,7 @@ gboolean qcrypto_hash_supports(QCryptoHashAlgorithm alg)
 {
     if (alg < G_N_ELEMENTS(qcrypto_hash_alg_map) &&
         qcrypto_hash_alg_map[alg] != GCRY_MD_NONE) {
-        return true;
+        return gcry_md_test_algo(qcrypto_hash_alg_map[alg]) == 0;
     }
     return false;
 }
diff --git a/crypto/hmac-gcrypt.c b/crypto/hmac-gcrypt.c
index 888afb86ed..15926fccfa 100644
--- a/crypto/hmac-gcrypt.c
+++ b/crypto/hmac-gcrypt.c
@@ -40,7 +40,7 @@ bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg)
 {
     if (alg < G_N_ELEMENTS(qcrypto_hmac_alg_map) &&
         qcrypto_hmac_alg_map[alg] != GCRY_MAC_NONE) {
-        return true;
+        return gcry_mac_test_algo(qcrypto_hmac_alg_map[alg]) == 0;
     }
 
     return false;
-- 
2.41.0.windows.1