crypt32: Directly call I_CryptGetDefaultCryptProv to make hooking from a 3rd party CSP work.

dlls/crypt32/cert.c

@@ -2169,7 +2169,7 @@ BOOL WINAPI CryptHashCertificate(HCRYPTPROV_LEGACY hCryptProv, ALG_ID Algid,
      pbEncoded, cbEncoded, pbComputedHash, pcbComputedHash);
 
     if (!hCryptProv)
-        hCryptProv = CRYPT_GetDefaultProvider();
+        hCryptProv = I_CryptGetDefaultCryptProv(0);
     if (!Algid)
         Algid = CALG_SHA1;
     if (ret)
@@ -2198,7 +2198,7 @@ BOOL WINAPI CryptHashPublicKeyInfo(HCRYPTPROV_LEGACY hCryptProv, ALG_ID Algid,
      dwCertEncodingType, pInfo, pbComputedHash, pcbComputedHash);
 
     if (!hCryptProv)
-        hCryptProv = CRYPT_GetDefaultProvider();
+        hCryptProv = I_CryptGetDefaultCryptProv(0);
     if (!Algid)
         Algid = CALG_MD5;
     if ((dwCertEncodingType & CERT_ENCODING_TYPE_MASK) != X509_ASN_ENCODING)
@@ -2250,7 +2250,7 @@ BOOL WINAPI CryptHashToBeSigned(HCRYPTPROV_LEGACY hCryptProv,
         HCRYPTHASH hHash;
 
         if (!hCryptProv)
-            hCryptProv = CRYPT_GetDefaultProvider();
+            hCryptProv = I_CryptGetDefaultCryptProv(0);
         oidInfo = CryptFindOIDInfo(CRYPT_OID_INFO_OID_KEY,
          info->SignatureAlgorithm.pszObjId, 0);
         if (!oidInfo)
@@ -2299,7 +2299,7 @@ BOOL WINAPI CryptSignCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProv,
     if (info->dwGroupId == CRYPT_HASH_ALG_OID_GROUP_ID)
     {
         if (!hCryptProv)
-            hCryptProv = CRYPT_GetDefaultProvider();
+            hCryptProv = I_CryptGetDefaultCryptProv(0);
         ret = CryptCreateHash(hCryptProv, info->u.Algid, 0, 0, &hHash);
         if (ret)
         {
@@ -2423,7 +2423,7 @@ static BOOL CRYPT_VerifySignature(HCRYPTPROV_LEGACY hCryptProv, DWORD dwCertEnco
         pubKeyID = hashID;
     /* Load the default provider if necessary */
     if (!hCryptProv)
-        hCryptProv = CRYPT_GetDefaultProvider();
+        hCryptProv = I_CryptGetDefaultCryptProv(0);
     ret = CryptImportPublicKeyInfoEx(hCryptProv, dwCertEncodingType,
      pubKeyInfo, pubKeyID, 0, NULL, &key);
     if (ret)

dlls/crypt32/crypt32_private.h

@@ -149,7 +149,7 @@ BOOL WINAPI CRYPT_AsnEncodePubKeyInfoNoNull(DWORD dwCertEncodingType,
 /* Returns a handle to the default crypto provider; loads it if necessary.
  * Returns NULL on failure.
  */
-HCRYPTPROV CRYPT_GetDefaultProvider(void) DECLSPEC_HIDDEN;
+HCRYPTPROV WINAPI I_CryptGetDefaultCryptProv(DWORD);
 
 HINSTANCE hInstance DECLSPEC_HIDDEN;
 

dlls/crypt32/main.c

@@ -56,7 +56,7 @@ BOOL WINAPI DllMain(HINSTANCE hInst, DWORD fdwReason, PVOID pvReserved)
     return TRUE;
 }
 
-HCRYPTPROV CRYPT_GetDefaultProvider(void)
+static HCRYPTPROV CRYPT_GetDefaultProvider(void)
 {
     if (!hDefProv)
     {

dlls/crypt32/msg.c

@@ -567,7 +567,7 @@ static HCRYPTMSG CHashEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
         prov = info->hCryptProv;
     else
     {
-        prov = CRYPT_GetDefaultProvider();
+        prov = I_CryptGetDefaultCryptProv(0);
         dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
     }
     msg = CryptMemAlloc(sizeof(CHashEncodeMsg));
@@ -1956,7 +1956,7 @@ static HCRYPTMSG CEnvelopedEncodeMsg_Open(DWORD dwFlags,
         prov = info->hCryptProv;
     else
     {
-        prov = CRYPT_GetDefaultProvider();
+        prov = I_CryptGetDefaultCryptProv(0);
         dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
     }
     msg = CryptMemAlloc(sizeof(CEnvelopedEncodeMsg));
@@ -3545,7 +3545,7 @@ HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
             msg->crypt_prov = hCryptProv;
         else
         {
-            msg->crypt_prov = CRYPT_GetDefaultProvider();
+            msg->crypt_prov = I_CryptGetDefaultCryptProv(0);
             msg->base.open_flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
         }
         memset(&msg->u, 0, sizeof(msg->u));