Changeset 94742 in vbox

Timestamp:

Apr 28, 2022 5:59:53 PM (3 years ago)

Author:

vboxsync

Message:

Main/ConsoleImpl: Some helpers to retain and release the cryptographic interface (mirrors the implementation in VirtualBoxImpl required for the NVRAM store). Loading the actual extension pack plugin is missing still, bugref:9955

Location:

trunk/src/VBox/Main

Files:

• include/ConsoleImpl.h (modified) (3 diffs)
• src-client/ConsoleImpl.cpp (modified) (2 diffs)

trunk/src/VBox/Main/include/ConsoleImpl.h

@@ -76 +76 @@
 # include <VBox/vrdpusb.h>
 #endif
+#include <VBox/VBoxCryptoIf.h>
 
 #if    defined(VBOX_WITH_GUEST_PROPS) || defined(VBOX_WITH_SHARED_CLIPBOARD) \
@@ -322 +323 @@
     HRESULT i_setDiskEncryptionKeys(const Utf8Str &strCfg);
 
+    HRESULT i_retainCryptoIf(PCVBOXCRYPTOIF *ppCryptoIf);
+    HRESULT i_releaseCryptoIf(PCVBOXCRYPTOIF pCryptoIf);
 
 #ifdef VBOX_WITH_GUEST_PROPS
@@ -1086 +1089 @@
     Bstr mstrUuid;
 
+    /** @name Members related to the cryptographic support interface.
+     * @{ */
+    /** The loaded module handle if loaded. */
+    RTLDRMOD                            mhLdrModCrypto;
+    /** Reference counter tracking how many users of the cryptographic support
+     * are there currently. */
+    volatile uint32_t                   mcRefsCrypto;
+    /** Pointer to the cryptographic support interface. */
+    PCVBOXCRYPTOIF                      mpCryptoIf;
+    /** @} */
+
 #ifdef VBOX_WITH_DRAG_AND_DROP
     HGCMSVCEXTHANDLE m_hHgcmSvcExtDragAndDrop;

trunk/src/VBox/Main/src-client/ConsoleImpl.cpp

@@ -417 +417 @@
     , mfUseHostClipboard(true)
     , mMachineState(MachineState_PoweredOff)
+    , mhLdrModCrypto(NIL_RTLDRMOD)
+    , mcRefsCrypto(0)
+    , mpCryptoIf(NULL)
 {
 }
@@ -8929 +8932 @@
 }
 
+/**
+ * Retains a reference to the default cryptographic interface.
+ *
+ * @returns COM status code.
+ * @param   ppCryptoIf          Where to store the pointer to the cryptographic interface on success.
+ *
+ * @note Locks this object for writing.
+ */
+HRESULT Console::i_retainCryptoIf(PCVBOXCRYPTOIF *ppCryptoIf)
+{
+    AssertReturn(ppCryptoIf != NULL, E_INVALIDARG);
+
+    if (mhLdrModCrypto == NIL_RTLDRMOD)
+        return setError(VBOX_E_NOT_SUPPORTED,
+                        tr("The VM is not configured for encryption"));
+
+    ASMAtomicIncU32(&mcRefsCrypto);
+    *ppCryptoIf = mpCryptoIf;
+
+    return S_OK;
+}
+
+/**
+ * Releases the reference of the given cryptographic interface.
+ *
+ * @returns COM status code.
+ * @param   pCryptoIf           Pointer to the cryptographic interface to release.
+ *
+ * @note Locks this object for writing.
+ */
+HRESULT Console::i_releaseCryptoIf(PCVBOXCRYPTOIF pCryptoIf)
+{
+    AssertReturn(pCryptoIf == mpCryptoIf, E_INVALIDARG);
+
+    ASMAtomicDecU32(&mcRefsCrypto);
+    return S_OK;
+}
+
 /** @callback_method_impl{FNVMATSTATE}
  *