Changeset 92705 in vbox

Timestamp:

Dec 2, 2021 12:56:20 PM (3 years ago)

Author:

vboxsync

Message:

SUP: Added SUPR3INIT_F_DRIVERLESS as a forced driverless option and an associated SUPR3IsDriverless(). The SUPR3INIT_F_DRIVERLESS flag requires the host specific init code to allow driverless, only done so on linux thus far. Started adjusting some of the SUPR3 APIs for driverless operation. [missing hardening flag] bugref:10138

Location:

trunk

Files:

• include/VBox/sup.h (modified) (2 diffs)
• src/VBox/HostDrivers/Support/SUPR3HardenedMain.cpp (modified) (2 diffs)

trunk/include/VBox/sup.h

@@ -1258 +1258 @@
  * main Mac OS X application (think Resources/VirtualBoxVM.app).  */
 #define SUPSECMAIN_FLAGS_LOC_OSX_HLP_APP            UINT32_C(0x00000020)
+/** Force driverless mode. */
+#define SUPSECMAIN_FLAGS_DRIVERLESS                 RT_BIT_32(8)
 /** Driverless IEM-only mode is allowed, so don't fail fatally just because
  * the VBox support driver is unavailable. */
-#define SUPSECMAIN_FLAGS_DRIVERLESS_IEM_ALLOWED     RT_BIT_32(8)
+#define SUPSECMAIN_FLAGS_DRIVERLESS_IEM_ALLOWED     RT_BIT_32(9)
 #ifdef VBOX_WITH_DRIVERLESS_NEM_FALLBACK
 /** Driverless NEM is a fallback posibility, so don't fail fatally just
@@ -1266 +1268 @@
  * This may imply checking NEM requirements, depending on the host.
  * @note Not supported on Windows. */
-# define SUPSECMAIN_FLAGS_DRIVERLESS_NEM_FALLBACK   RT_BIT_32(9)
+# define SUPSECMAIN_FLAGS_DRIVERLESS_NEM_FALLBACK   RT_BIT_32(10)
 #endif
 

trunk/src/VBox/HostDrivers/Support/SUPR3HardenedMain.cpp

@@ -1865 +1865 @@
     SUPINITOP       enmWhat = kSupInitOp_Driver;
     uint32_t        fFlags  = SUPR3INIT_F_UNRESTRICTED;
+    if (g_fSupHardenedMain & SUPSECMAIN_FLAGS_DRIVERLESS)
+        fFlags |= SUPR3INIT_F_DRIVERLESS;
     if (g_fSupHardenedMain & SUPSECMAIN_FLAGS_DRIVERLESS_IEM_ALLOWED)
         fFlags |= SUPR3INIT_F_DRIVERLESS_IEM_ALLOWED;
@@ -2353 +2355 @@
     if (!(fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV))
     {
+        if (fFlags & SUPSECMAIN_FLAGS_DRIVERLESS)
+            fRtInit |= (SUPR3INIT_F_DRIVERLESS              << RTR3INIT_FLAGS_SUPLIB_SHIFT) | RTR3INIT_FLAGS_TRY_SUPLIB;
         if (fFlags & SUPSECMAIN_FLAGS_DRIVERLESS_IEM_ALLOWED)
             fRtInit |= (SUPR3INIT_F_DRIVERLESS_IEM_ALLOWED  << RTR3INIT_FLAGS_SUPLIB_SHIFT) | RTR3INIT_FLAGS_TRY_SUPLIB;