Changeset 51103 in vbox for trunk/src/VBox/Devices/Storage

Timestamp:

Apr 18, 2014 10:13:25 AM (11 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

93385

Message:

Devics/Storage/DrvVD: Add support for filter plugins

File:

• trunk/src/VBox/Devices/Storage/DrvVD.cpp (modified) (4 diffs)

trunk/src/VBox/Devices/Storage/DrvVD.cpp

@@ -614 +614 @@
 {
     return CFGMR3QueryString((PCFGMNODE)pvUser, pszName, pszString, cchString);
+}
+
+static int drvvdCfgQueryBytes(void *pvUser, const char *pszName, void *ppvData, size_t cbData)
+{
+    return CFGMR3QueryBytes((PCFGMNODE)pvUser, pszName, ppvData, cbData);
 }
 
@@ -1926 +1931 @@
 }
 
+/**
+ * Sets up the disk filter chain.
+ *
+ * @returns VBox status code.
+ * @param   pThis    The disk instance.
+ * @param   pCfg     CFGM node holding the filter parameters.
+ */
+static int drvvdSetupFilters(PVBOXDISK pThis, PCFGMNODE pCfg)
+{
+    int rc = VINF_SUCCESS;
+    PCFGMNODE pCfgFilter = CFGMR3GetChild(pCfg, "Filters");
+
+    if (pCfgFilter)
+    {
+        PCFGMNODE pCfgFilterConfig = CFGMR3GetChild(pCfgFilter, "VDConfig");
+        char *pszFilterName = NULL;
+        VDINTERFACECONFIG VDIfConfig;
+        PVDINTERFACE pVDIfsFilter = NULL;
+
+        rc = CFGMR3QueryStringAlloc(pCfgFilter, "FilterName", &pszFilterName);
+        if (RT_SUCCESS(rc))
+        {
+            VDIfConfig.pfnAreKeysValid = drvvdCfgAreKeysValid;
+            VDIfConfig.pfnQuerySize    = drvvdCfgQuerySize;
+            VDIfConfig.pfnQuery        = drvvdCfgQuery;
+            VDIfConfig.pfnQueryBytes   = drvvdCfgQueryBytes;
+            rc = VDInterfaceAdd(&VDIfConfig.Core, "DrvVD_Config", VDINTERFACETYPE_CONFIG,
+                                pCfgFilterConfig, sizeof(VDINTERFACECONFIG), &pVDIfsFilter);
+            AssertRC(rc);
+
+            rc = VDFilterAdd(pThis->pDisk, pszFilterName, pVDIfsFilter);
+
+            MMR3HeapFree(pszFilterName);
+        }
+    }
+
+    return rc;
+}
+
 /*******************************************************************************
 *   Base interface methods                                                     *
@@ -2564 +2608 @@
         pImage->VDIfConfig.pfnQuerySize    = drvvdCfgQuerySize;
         pImage->VDIfConfig.pfnQuery        = drvvdCfgQuery;
+        pImage->VDIfConfig.pfnQueryBytes   = NULL;
         rc = VDInterfaceAdd(&pImage->VDIfConfig.Core, "DrvVD_Config", VDINTERFACETYPE_CONFIG,
                             pCfgVDConfig, sizeof(VDINTERFACECONFIG), &pImage->pVDIfsImage);
@@ -2851 +2896 @@
         }
     }
+
+    if (RT_SUCCESS(rc))
+        rc = drvvdSetupFilters(pThis, pCfg);
 
     /*