]> code.delx.au - refind/blobdiff - refind/main.c
Version 0.6.5 release.
[refind] / refind / main.c
index d116576a0c9a5ed219fffa738ddf767c97a8423a..ccbf97d83e64509eb184828222ebd8d066d10170 100644 (file)
  */
 /*
  * Modifications copyright (c) 2012 Roderick W. Smith
- * 
+ *
  * Modifications distributed under the terms of the GNU General Public
  * License (GPL) version 3 (GPLv3), a copy of which must be distributed
  * with this source code or binaries made from it.
- * 
+ *
  */
 
 #include "global.h"
 #include "lib.h"
 #include "icns.h"
 #include "menu.h"
+#include "mok.h"
+#include "security_policy.h"
 #include "../include/Handle.h"
 #include "../include/refit_call_wrapper.h"
 #include "driver_support.h"
 #include "../include/syslinux_mbr.h"
 
-// 
+#ifdef __MAKEWITH_GNUEFI
+#define EFI_SECURITY_VIOLATION    EFIERR (26)
+#else
+#include "../EfiLib/BdsHelper.h"
+#endif // __MAKEWITH_GNUEFI
+
+//
 // variables
 
 #define MACOSX_LOADER_PATH      L"System\\Library\\CoreServices\\boot.efi"
 #if defined (EFIX64)
-#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\shellx64.efi"
+#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\EFI\\tools\\shellx64.efi,\\shellx64.efi"
 #define DRIVER_DIRS             L"drivers,drivers_x64"
 #elif defined (EFI32)
-#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\shellia32.efi"
+#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\EFI\\tools\\shellia32.efi,\\shellia32.efi"
 #define DRIVER_DIRS             L"drivers,drivers_ia32"
 #else
 #define SHELL_NAMES             L"\\EFI\\tools\\shell.efi"
 #define DRIVER_DIRS             L"drivers"
 #endif
 
+#define MOK_NAMES               L"\\EFI\\tools\\MokManager.efi,\\EFI\\redhat\\MokManager.efi,\\EFI\\ubuntu\\MokManager.efi,\\EFI\\suse\\MokManager"
+
 // Filename patterns that identify EFI boot loaders. Note that a single case (either L"*.efi" or
 // L"*.EFI") is fine for most systems; but Gigabyte's buggy Hybrid EFI does a case-sensitive
 // comparison when it should do a case-insensitive comparison, so I'm doubling this up. It does
 // a ".efi" extension to be found when scanning for boot loaders.
 #define LINUX_MATCH_PATTERNS    L"vmlinuz*,bzImage*"
 
+// Default hint text for program-launch submenus
+#define SUBSCREEN_HINT1            L"Use arrow keys to move cursor; Enter to boot;"
+#define SUBSCREEN_HINT2            L"Insert or F2 to edit options; Esc to return to main menu"
+#define SUBSCREEN_HINT2_NO_EDITOR  L"Esc to return to main menu"
+
 static REFIT_MENU_ENTRY MenuEntryAbout    = { L"About rEFInd", TAG_ABOUT, 1, 0, 'A', NULL, NULL, NULL };
 static REFIT_MENU_ENTRY MenuEntryReset    = { L"Reboot Computer", TAG_REBOOT, 1, 0, 'R', NULL, NULL, NULL };
 static REFIT_MENU_ENTRY MenuEntryShutdown = { L"Shut Down Computer", TAG_SHUTDOWN, 1, 0, 'U', NULL, NULL, NULL };
 static REFIT_MENU_ENTRY MenuEntryReturn   = { L"Return to Main Menu", TAG_RETURN, 0, 0, 0, NULL, NULL, NULL };
 static REFIT_MENU_ENTRY MenuEntryExit     = { L"Exit rEFInd", TAG_EXIT, 1, 0, 0, NULL, NULL, NULL };
 
-static REFIT_MENU_SCREEN MainMenu       = { L"Main Menu", NULL, 0, NULL, 0, NULL, 0, L"Automatic boot" };
-static REFIT_MENU_SCREEN AboutMenu      = { L"About", NULL, 0, NULL, 0, NULL, 0, NULL };
+static REFIT_MENU_SCREEN MainMenu       = { L"Main Menu", NULL, 0, NULL, 0, NULL, 0, L"Automatic boot",
+                                            L"Use arrow keys to move cursor; Enter to boot;",
+                                            L"Insert or F2 for more options; Esc to refresh" };
+static REFIT_MENU_SCREEN AboutMenu      = { L"About", NULL, 0, NULL, 0, NULL, 0, NULL, L"Press Enter to return to main menu", L"" };
 
-REFIT_CONFIG GlobalConfig = { FALSE, FALSE, 0, 0, 20, 0, 0, GRAPHICS_FOR_OSX, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-                              {TAG_SHELL, TAG_ABOUT, TAG_SHUTDOWN, TAG_REBOOT, 0, 0, 0, 0, 0 }};
+REFIT_CONFIG GlobalConfig = { FALSE, FALSE, 0, 0, 0, DONT_CHANGE_TEXT_MODE, 20, 0, 0, GRAPHICS_FOR_OSX, LEGACY_TYPE_MAC, 0,
+                              NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                              {TAG_SHELL, TAG_APPLE_RECOVERY, TAG_MOK_TOOL, TAG_ABOUT, TAG_SHUTDOWN, TAG_REBOOT, 0, 0, 0, 0, 0 }};
 
 // Structure used to hold boot loader filenames and time stamps in
 // a linked list; used to sort entries within a directory.
@@ -110,7 +128,7 @@ static VOID AboutrEFInd(VOID)
 
     if (AboutMenu.EntryCount == 0) {
         AboutMenu.TitleImage = BuiltinIcon(BUILTIN_ICON_FUNC_ABOUT);
-        AddMenuInfoLine(&AboutMenu, L"rEFInd Version 0.4.4");
+        AddMenuInfoLine(&AboutMenu, L"rEFInd Version 0.6.5");
         AddMenuInfoLine(&AboutMenu, L"");
         AddMenuInfoLine(&AboutMenu, L"Copyright (c) 2006-2010 Christoph Pfisterer");
         AddMenuInfoLine(&AboutMenu, L"Copyright (c) 2012 Roderick W. Smith");
@@ -124,7 +142,9 @@ static VOID AboutrEFInd(VOID)
 #if defined(EFI32)
         AddMenuInfoLine(&AboutMenu, L" Platform: x86 (32 bit)");
 #elif defined(EFIX64)
-        AddMenuInfoLine(&AboutMenu, L" Platform: x86_64 (64 bit)");
+        TempStr = AllocateZeroPool(256 * sizeof(CHAR16));
+        SPrint(TempStr, 255, L" Platform: x86_64 (64 bit); Secure Boot %s", secure_mode() ? L"active" : L"inactive");
+        AddMenuInfoLine(&AboutMenu, TempStr);
 #else
         AddMenuInfoLine(&AboutMenu, L" Platform: unknown");
 #endif
@@ -150,31 +170,59 @@ static VOID AboutrEFInd(VOID)
     RunMenu(&AboutMenu, NULL);
 } /* VOID AboutrEFInd() */
 
+// Launch an EFI binary.
 static EFI_STATUS StartEFIImageList(IN EFI_DEVICE_PATH **DevicePaths,
                                     IN CHAR16 *LoadOptions, IN CHAR16 *LoadOptionsPrefix,
-                                    IN CHAR16 *ImageTitle,
+                                    IN CHAR16 *ImageTitle, IN CHAR8 OSType,
                                     OUT UINTN *ErrorInStep,
                                     IN BOOLEAN Verbose)
 {
     EFI_STATUS              Status, ReturnStatus;
     EFI_HANDLE              ChildImageHandle;
-    EFI_LOADED_IMAGE        *ChildLoadedImage;
+    EFI_LOADED_IMAGE        *ChildLoadedImage = NULL;
     UINTN                   DevicePathIndex;
     CHAR16                  ErrorInfo[256];
     CHAR16                  *FullLoadOptions = NULL;
 
-    if (Verbose)
-        Print(L"Starting %s\n", ImageTitle);
     if (ErrorInStep != NULL)
         *ErrorInStep = 0;
 
-    // load the image into memory
+    // set load options
+    if (LoadOptions != NULL) {
+        if (LoadOptionsPrefix != NULL) {
+            MergeStrings(&FullLoadOptions, LoadOptions, L' ');
+            if (OSType == 'M') {
+               MergeStrings(&FullLoadOptions, L" ", 0);
+               // NOTE: That last space is also added by the EFI shell and seems to be significant
+               //  when passing options to Apple's boot.efi...
+            } // if
+        } else {
+            MergeStrings(&FullLoadOptions, LoadOptions, 0);
+        } // if/else
+    } else { // LoadOptions == NULL
+       // NOTE: We provide a non-null string when no options are specified for safety;
+       // some systems (at least DUET) can hang when launching some programs (such as
+       // an EFI shell) without this.
+       FullLoadOptions = StrDuplicate(L" ");
+    }
+    if (Verbose)
+       Print(L"Starting %s\nUsing load options '%s'\n", ImageTitle, FullLoadOptions);
+
+    // load the image into memory (and execute it, in the case of a shim/MOK image).
     ReturnStatus = Status = EFI_NOT_FOUND;  // in case the list is empty
     for (DevicePathIndex = 0; DevicePaths[DevicePathIndex] != NULL; DevicePathIndex++) {
-        ReturnStatus = Status = refit_call6_wrapper(BS->LoadImage, FALSE, SelfImageHandle, DevicePaths[DevicePathIndex], NULL, 0, &ChildImageHandle);
-        if (ReturnStatus != EFI_NOT_FOUND) {
-            break;
-        }
+       // NOTE: Below commented-out line could be more efficient if file were read ahead of
+       // time and passed as a pre-loaded image to LoadImage(), but it doesn't work on my
+       // 32-bit Mac Mini or my 64-bit Intel box when launching a Linux kernel; the
+       // kernel returns a "Failed to handle fs_proto" error message.
+       // TODO: Track down the cause of this error and fix it, if possible.
+       // ReturnStatus = Status = refit_call6_wrapper(BS->LoadImage, FALSE, SelfImageHandle, DevicePaths[DevicePathIndex],
+       //                                            ImageData, ImageSize, &ChildImageHandle);
+       ReturnStatus = Status = refit_call6_wrapper(BS->LoadImage, FALSE, SelfImageHandle, DevicePaths[DevicePathIndex],
+                                                   NULL, 0, &ChildImageHandle);
+       if (ReturnStatus != EFI_NOT_FOUND) {
+          break;
+       }
     }
     SPrint(ErrorInfo, 255, L"while loading %s", ImageTitle);
     if (CheckError(Status, ErrorInfo)) {
@@ -183,35 +231,22 @@ static EFI_STATUS StartEFIImageList(IN EFI_DEVICE_PATH **DevicePaths,
         goto bailout;
     }
 
-    // set load options
-    if (LoadOptions != NULL) {
-        ReturnStatus = Status = refit_call3_wrapper(BS->HandleProtocol, ChildImageHandle, &LoadedImageProtocol, (VOID **) &ChildLoadedImage);
-        if (CheckError(Status, L"while getting a LoadedImageProtocol handle")) {
-            if (ErrorInStep != NULL)
-                *ErrorInStep = 2;
-            goto bailout_unload;
-        }
-
-        if (LoadOptionsPrefix != NULL) {
-            MergeStrings(&FullLoadOptions, LoadOptionsPrefix, 0);
-            MergeStrings(&FullLoadOptions, LoadOptions, L' ');
-            MergeStrings(&FullLoadOptions, L" ", 0);
-            // NOTE: That last space is also added by the EFI shell and seems to be significant
-            //  when passing options to Apple's boot.efi...
-        }
-        // NOTE: We also include the terminating null in the length for safety.
-        ChildLoadedImage->LoadOptions = (VOID *)FullLoadOptions;
-        ChildLoadedImage->LoadOptionsSize = ((UINT32)StrLen(FullLoadOptions) + 1) * sizeof(CHAR16);
-        if (Verbose)
-            Print(L"Using load options '%s'\n", FullLoadOptions);
+    ReturnStatus = Status = refit_call3_wrapper(BS->HandleProtocol, ChildImageHandle, &LoadedImageProtocol,
+                                                (VOID **) &ChildLoadedImage);
+    if (CheckError(Status, L"while getting a LoadedImageProtocol handle")) {
+       if (ErrorInStep != NULL)
+          *ErrorInStep = 2;
+       goto bailout_unload;
     }
+    ChildLoadedImage->LoadOptions = (VOID *)FullLoadOptions;
+    ChildLoadedImage->LoadOptionsSize = ((UINT32)StrLen(FullLoadOptions) + 1) * sizeof(CHAR16);
+    // turn control over to the image
+    // TODO: (optionally) re-enable the EFI watchdog timer!
 
     // close open file handles
     UninitRefitLib();
-
-    // turn control over to the image
-    // TODO: (optionally) re-enable the EFI watchdog timer!
     ReturnStatus = Status = refit_call3_wrapper(BS->StartImage, ChildImageHandle, NULL, NULL);
+
     // control returns here when the child image calls Exit()
     SPrint(ErrorInfo, 255, L"returned from %s", ImageTitle);
     if (CheckError(Status, ErrorInfo)) {
@@ -225,15 +260,15 @@ static EFI_STATUS StartEFIImageList(IN EFI_DEVICE_PATH **DevicePaths,
 bailout_unload:
     // unload the image, we don't care if it works or not...
     Status = refit_call1_wrapper(BS->UnloadImage, ChildImageHandle);
+
 bailout:
-    if (FullLoadOptions != NULL)
-        FreePool(FullLoadOptions);
+    MyFreePool(FullLoadOptions);
     return ReturnStatus;
 } /* static EFI_STATUS StartEFIImageList() */
 
 static EFI_STATUS StartEFIImage(IN EFI_DEVICE_PATH *DevicePath,
                                 IN CHAR16 *LoadOptions, IN CHAR16 *LoadOptionsPrefix,
-                                IN CHAR16 *ImageTitle,
+                                IN CHAR16 *ImageTitle, IN CHAR8 OSType,
                                 OUT UINTN *ErrorInStep,
                                 IN BOOLEAN Verbose)
 {
@@ -241,7 +276,7 @@ static EFI_STATUS StartEFIImage(IN EFI_DEVICE_PATH *DevicePath,
 
     DevicePaths[0] = DevicePath;
     DevicePaths[1] = NULL;
-    return StartEFIImageList(DevicePaths, LoadOptions, LoadOptionsPrefix, ImageTitle, ErrorInStep, Verbose);
+    return StartEFIImageList(DevicePaths, LoadOptions, LoadOptionsPrefix, ImageTitle, OSType, ErrorInStep, Verbose);
 } /* static EFI_STATUS StartEFIImage() */
 
 //
@@ -253,8 +288,8 @@ static VOID StartLoader(IN LOADER_ENTRY *Entry)
     UINTN ErrorInStep = 0;
 
     BeginExternalScreen(Entry->UseGraphicsMode, L"Booting OS");
-    StartEFIImage(Entry->DevicePath, Entry->LoadOptions,
-                  Basename(Entry->LoaderPath), Basename(Entry->LoaderPath), &ErrorInStep, !Entry->UseGraphicsMode);
+    StartEFIImage(Entry->DevicePath, Entry->LoadOptions, Basename(Entry->LoaderPath),
+                  Basename(Entry->LoaderPath), Entry->OSType, &ErrorInStep, !Entry->UseGraphicsMode);
     FinishExternalScreen();
 }
 
@@ -302,14 +337,13 @@ static CHAR16 * FindInitrd(IN CHAR16 *LoaderPath, IN REFIT_VOLUME *Volume) {
             MergeStrings(&InitrdName, DirEntry->FileName, 0);
          } // if
       } // if/else
-      if (InitrdVersion != NULL)
-         FreePool(InitrdVersion);
+      MyFreePool(InitrdVersion);
    } // while
    DirIterClose(&DirIter);
 
    // Note: Don't FreePool(FileName), since Basename returns a pointer WITHIN the string it's passed.
-   FreePool(KernelVersion);
-   FreePool(Path);
+   MyFreePool(KernelVersion);
+   MyFreePool(Path);
    return (InitrdName);
 } // static CHAR16 * FindInitrd()
 
@@ -328,8 +362,8 @@ static REFIT_MENU_SCREEN* CopyMenuScreen(REFIT_MENU_SCREEN *Entry) {
    NewEntry = AllocateZeroPool(sizeof(REFIT_MENU_SCREEN));
    if ((Entry != NULL) && (NewEntry != NULL)) {
       CopyMem(NewEntry, Entry, sizeof(REFIT_MENU_SCREEN));
-      NewEntry->Title = StrDuplicate(Entry->Title);
-      NewEntry->TimeoutText = StrDuplicate(Entry->TimeoutText);
+      NewEntry->Title = (Entry->Title) ? StrDuplicate(Entry->Title) : NULL;
+      NewEntry->TimeoutText = (Entry->TimeoutText) ? StrDuplicate(Entry->TimeoutText) : NULL;
       if (Entry->TitleImage != NULL) {
          NewEntry->TitleImage = AllocatePool(sizeof(EG_IMAGE));
          if (NewEntry->TitleImage != NULL)
@@ -337,12 +371,14 @@ static REFIT_MENU_SCREEN* CopyMenuScreen(REFIT_MENU_SCREEN *Entry) {
       } // if
       NewEntry->InfoLines = (CHAR16**) AllocateZeroPool(Entry->InfoLineCount * (sizeof(CHAR16*)));
       for (i = 0; i < Entry->InfoLineCount && NewEntry->InfoLines; i++) {
-         NewEntry->InfoLines[i] = StrDuplicate(Entry->InfoLines[i]);
+         NewEntry->InfoLines[i] = (Entry->InfoLines[i]) ? StrDuplicate(Entry->InfoLines[i]) : NULL;
       } // for
       NewEntry->Entries = (REFIT_MENU_ENTRY**) AllocateZeroPool(Entry->EntryCount * (sizeof (REFIT_MENU_ENTRY*)));
       for (i = 0; i < Entry->EntryCount && NewEntry->Entries; i++) {
          AddMenuEntry(NewEntry, Entry->Entries[i]);
       } // for
+      NewEntry->Hint1 = (Entry->Hint1) ? StrDuplicate(Entry->Hint1) : NULL;
+      NewEntry->Hint2 = (Entry->Hint2) ? StrDuplicate(Entry->Hint2) : NULL;
    } // if
    return (NewEntry);
 } // static REFIT_MENU_SCREEN* CopyMenuScreen()
@@ -358,7 +394,7 @@ static REFIT_MENU_ENTRY* CopyMenuEntry(REFIT_MENU_ENTRY *Entry) {
    NewEntry = AllocateZeroPool(sizeof(REFIT_MENU_ENTRY));
    if ((Entry != NULL) && (NewEntry != NULL)) {
       CopyMem(NewEntry, Entry, sizeof(REFIT_MENU_ENTRY));
-      NewEntry->Title = StrDuplicate(Entry->Title);
+      NewEntry->Title = (Entry->Title) ? StrDuplicate(Entry->Title) : NULL;
       if (Entry->BadgeImage != NULL) {
          NewEntry->BadgeImage = AllocatePool(sizeof(EG_IMAGE));
          if (NewEntry->BadgeImage != NULL)
@@ -392,17 +428,34 @@ LOADER_ENTRY *InitializeLoaderEntry(IN LOADER_ENTRY *Entry) {
       NewEntry->UseGraphicsMode = FALSE;
       NewEntry->OSType          = 0;
       if (Entry != NULL) {
-         NewEntry->LoaderPath      = StrDuplicate(Entry->LoaderPath);
-         NewEntry->VolName         = StrDuplicate(Entry->VolName);
+         NewEntry->LoaderPath      = (Entry->LoaderPath) ? StrDuplicate(Entry->LoaderPath) : NULL;
+         NewEntry->VolName         = (Entry->VolName) ? StrDuplicate(Entry->VolName) : NULL;
          NewEntry->DevicePath      = Entry->DevicePath;
          NewEntry->UseGraphicsMode = Entry->UseGraphicsMode;
-         NewEntry->LoadOptions     = StrDuplicate(Entry->LoadOptions);
-         NewEntry->InitrdPath      = StrDuplicate(Entry->InitrdPath);
+         NewEntry->LoadOptions     = (Entry->LoadOptions) ? StrDuplicate(Entry->LoadOptions) : NULL;
+         NewEntry->InitrdPath      = (Entry->InitrdPath) ? StrDuplicate(Entry->InitrdPath) : NULL;
       }
    } // if
    return (NewEntry);
 } // LOADER_ENTRY *InitializeLoaderEntry()
 
+// Adds InitrdPath to Options, but only if Options doesn't already include an
+// initrd= line. Done to enable overriding the default initrd selection in a
+// refind_linux.conf file's options list.
+// Returns a pointer to a new string. The calling function is responsible for
+// freeing its memory.
+static CHAR16 *AddInitrdToOptions(CHAR16 *Options, CHAR16 *InitrdPath) {
+   CHAR16 *NewOptions = NULL;
+
+   if (Options != NULL)
+      NewOptions = StrDuplicate(Options);
+   if ((InitrdPath != NULL) && !StriSubCmp(L"initrd=", Options)) {
+      MergeStrings(&NewOptions, L"initrd=", L' ');
+      MergeStrings(&NewOptions, InitrdPath, 0);
+   }
+   return NewOptions;
+} // CHAR16 *AddInitrdToOptions()
+
 // Prepare a REFIT_MENU_SCREEN data structure for a subscreen entry. This sets up
 // the default entry that launches the boot loader using the same options as the
 // main Entry does. Subsequent options can be added by the calling function.
@@ -411,7 +464,7 @@ LOADER_ENTRY *InitializeLoaderEntry(IN LOADER_ENTRY *Entry) {
 // Returns a pointer to the new subscreen data structure, or NULL if there
 // were problems allocating memory.
 REFIT_MENU_SCREEN *InitializeSubScreen(IN LOADER_ENTRY *Entry) {
-   CHAR16              *FileName, *Temp = NULL;
+   CHAR16              *FileName, *MainOptions = NULL;
    REFIT_MENU_SCREEN   *SubScreen = NULL;
    LOADER_ENTRY        *SubEntry;
 
@@ -426,15 +479,18 @@ REFIT_MENU_SCREEN *InitializeSubScreen(IN LOADER_ENTRY *Entry) {
          // default entry
          SubEntry = InitializeLoaderEntry(Entry);
          if (SubEntry != NULL) {
-            SubEntry->me.Title = L"Boot using default options";
-            if ((SubEntry->InitrdPath != NULL) && (StrLen(SubEntry->InitrdPath) > 0) && (!StriSubCmp(L"initrd", SubEntry->LoadOptions))) {
-               MergeStrings(&Temp, L"initrd=", 0);
-               MergeStrings(&Temp, SubEntry->InitrdPath, 0);
-               MergeStrings(&SubEntry->LoadOptions, Temp, L' ');
-               FreePool(Temp);
-            } // if
+            SubEntry->me.Title = StrDuplicate(L"Boot using default options");
+            MainOptions = SubEntry->LoadOptions;
+            SubEntry->LoadOptions = AddInitrdToOptions(MainOptions, SubEntry->InitrdPath);
+            MyFreePool(MainOptions);
             AddMenuEntry(SubScreen, (REFIT_MENU_ENTRY *)SubEntry);
          } // if (SubEntry != NULL)
+         SubScreen->Hint1 = StrDuplicate(SUBSCREEN_HINT1);
+         if (GlobalConfig.HideUIFlags & HIDEUI_FLAG_EDITOR) {
+            SubScreen->Hint2 = StrDuplicate(SUBSCREEN_HINT2_NO_EDITOR);
+         } else {
+            SubScreen->Hint2 = StrDuplicate(SUBSCREEN_HINT2);
+         } // if/else
       } // if (SubScreen != NULL)
    } else { // existing subscreen; less initialization, and just add new entry later....
       SubScreen = Entry->me.SubScreen;
@@ -445,7 +501,7 @@ REFIT_MENU_SCREEN *InitializeSubScreen(IN LOADER_ENTRY *Entry) {
 VOID GenerateSubScreen(LOADER_ENTRY *Entry, IN REFIT_VOLUME *Volume) {
    REFIT_MENU_SCREEN  *SubScreen;
    LOADER_ENTRY       *SubEntry;
-   CHAR16             *InitrdOption = NULL, *Temp;
+   CHAR16             *InitrdName;
    CHAR16             DiagsFileName[256];
    REFIT_FILE         *File;
    UINTN              TokenCount;
@@ -453,7 +509,7 @@ VOID GenerateSubScreen(LOADER_ENTRY *Entry, IN REFIT_VOLUME *Volume) {
 
    // create the submenu
    if (StrLen(Entry->Title) == 0) {
-      FreePool(Entry->Title);
+      MyFreePool(Entry->Title);
       Entry->Title = NULL;
    }
    SubScreen = InitializeSubScreen(Entry);
@@ -512,15 +568,25 @@ VOID GenerateSubScreen(LOADER_ENTRY *Entry, IN REFIT_VOLUME *Volume) {
             SubEntry->LoadOptions     = L"-v -s";
             AddMenuEntry(SubScreen, (REFIT_MENU_ENTRY *)SubEntry);
          } // if
-      } // not single-user
+      } // single-user mode allowed
+
+      if (!(GlobalConfig.HideUIFlags & HIDEUI_FLAG_SAFEMODE)) {
+         SubEntry = InitializeLoaderEntry(Entry);
+         if (SubEntry != NULL) {
+            SubEntry->me.Title        = L"Boot Mac OS X in safe mode";
+            SubEntry->UseGraphicsMode = FALSE;
+            SubEntry->LoadOptions     = L"-v -x";
+            AddMenuEntry(SubScreen, (REFIT_MENU_ENTRY *)SubEntry);
+         } // if
+      } // safe mode allowed
 
       // check for Apple hardware diagnostics
-      StrCpy(DiagsFileName, L"\\System\\Library\\CoreServices\\.diagnostics\\diags.efi");
+      StrCpy(DiagsFileName, L"System\\Library\\CoreServices\\.diagnostics\\diags.efi");
       if (FileExists(Volume->RootDir, DiagsFileName) && !(GlobalConfig.HideUIFlags & HIDEUI_FLAG_HWTEST)) {
          SubEntry = InitializeLoaderEntry(Entry);
          if (SubEntry != NULL) {
             SubEntry->me.Title        = L"Run Apple Hardware Test";
-            FreePool(SubEntry->LoaderPath);
+            MyFreePool(SubEntry->LoaderPath);
             SubEntry->LoaderPath      = StrDuplicate(DiagsFileName);
             SubEntry->DevicePath      = FileDevicePath(Volume->DeviceHandle, SubEntry->LoaderPath);
             SubEntry->UseGraphicsMode = GlobalConfig.GraphicsFor & GRAPHICS_FOR_OSX;
@@ -531,28 +597,27 @@ VOID GenerateSubScreen(LOADER_ENTRY *Entry, IN REFIT_VOLUME *Volume) {
    } else if (Entry->OSType == 'L') {   // entries for Linux kernels with EFI stub loaders
       File = ReadLinuxOptionsFile(Entry->LoaderPath, Volume);
       if (File != NULL) {
-         if ((Temp = FindInitrd(Entry->LoaderPath, Volume)) != NULL) {
-            MergeStrings(&InitrdOption, L"initrd=", 0);
-            MergeStrings(&InitrdOption, Temp, 0);
-         }
-         TokenCount = ReadTokenLine(File, &TokenList); // read and discard first entry, since it's
-         FreeTokenLine(&TokenList, &TokenCount);       // set up by InitializeSubScreen(), earlier....
+         InitrdName =  FindInitrd(Entry->LoaderPath, Volume);
+         TokenCount = ReadTokenLine(File, &TokenList);
+         // first entry requires special processing, since it was initially set
+         // up with a default title but correct options by InitializeSubScreen(),
+         // earlier....
+         if ((SubScreen->Entries != NULL) && (SubScreen->Entries[0] != NULL)) {
+            MyFreePool(SubScreen->Entries[0]->Title);
+            SubScreen->Entries[0]->Title = StrDuplicate(TokenList[0]);
+         } // if
+         FreeTokenLine(&TokenList, &TokenCount);
          while ((TokenCount = ReadTokenLine(File, &TokenList)) > 1) {
             SubEntry = InitializeLoaderEntry(Entry);
             SubEntry->me.Title = StrDuplicate(TokenList[0]);
-            if (SubEntry->LoadOptions != NULL)
-               FreePool(SubEntry->LoadOptions);
-            SubEntry->LoadOptions = StrDuplicate(TokenList[1]);
-            MergeStrings(&SubEntry->LoadOptions, InitrdOption, L' ');
+            MyFreePool(SubEntry->LoadOptions);
+            SubEntry->LoadOptions = AddInitrdToOptions(TokenList[1], InitrdName);
             FreeTokenLine(&TokenList, &TokenCount);
             SubEntry->UseGraphicsMode = GlobalConfig.GraphicsFor & GRAPHICS_FOR_LINUX;
             AddMenuEntry(SubScreen, (REFIT_MENU_ENTRY *)SubEntry);
          } // while
-         if (InitrdOption)
-            FreePool(InitrdOption);
-         if (Temp)
-            FreePool(Temp);
-         FreePool(File);
+         MyFreePool(InitrdName);
+         MyFreePool(File);
       } // if Linux options file exists
 
    } else if (Entry->OSType == 'E') {   // entries for ELILO
@@ -631,49 +696,71 @@ VOID GenerateSubScreen(LOADER_ENTRY *Entry, IN REFIT_VOLUME *Volume) {
 // kernel's directory; and if present, adds an initrd= option for an initial
 // RAM disk file with the same version number as the kernel file.
 static CHAR16 * GetMainLinuxOptions(IN CHAR16 * LoaderPath, IN REFIT_VOLUME *Volume) {
-   CHAR16 *Options = NULL, *InitrdName, *InitrdOption = NULL;
+   CHAR16 *Options = NULL, *InitrdName, *FullOptions = NULL;
 
    Options = GetFirstOptionsFromFile(LoaderPath, Volume);
    InitrdName = FindInitrd(LoaderPath, Volume);
-   if (InitrdName != NULL) {
-      MergeStrings(&InitrdOption, L"initrd=", 0);
-      MergeStrings(&InitrdOption, InitrdName, 0);
-   } // if
-   MergeStrings(&Options, InitrdOption, ' ');
-   if (InitrdOption != NULL)
-      FreePool(InitrdOption);
-   if (InitrdName != NULL)
-      FreePool(InitrdName);
-   return (Options);
+   FullOptions = AddInitrdToOptions(Options, InitrdName);
+
+   MyFreePool(Options);
+   MyFreePool(InitrdName);
+   return (FullOptions);
 } // static CHAR16 * GetMainLinuxOptions()
 
 // Sets a few defaults for a loader entry -- mainly the icon, but also the OS type
 // code and shortcut letter. For Linux EFI stub loaders, also sets kernel options
 // that will (with luck) work fairly automatically.
-VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, IN REFIT_VOLUME *Volume) {
-   CHAR16          IconFileName[256];
-   CHAR16          *FileName, *PathOnly, *OSIconName = NULL, *Temp;
-   CHAR16          ShortcutLetter = 0;
+VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, REFIT_VOLUME *Volume) {
+   CHAR16      *FileName, *PathOnly, *IconNames = NULL, *NoExtension, *OSIconName = NULL, *Temp, *SubString;
+   CHAR16      ShortcutLetter = 0;
+   UINTN       i = 0, Length;
 
    FileName = Basename(LoaderPath);
    PathOnly = FindPath(LoaderPath);
+   NoExtension = StripEfiExtension(FileName);
 
    // locate a custom icon for the loader
-   StrCpy(IconFileName, LoaderPath);
-   ReplaceEfiExtension(IconFileName, L".icns");
-   if (FileExists(Volume->RootDir, IconFileName)) {
-      Entry->me.Image = LoadIcns(Volume->RootDir, IconFileName, 128);
-   } else if ((StrLen(PathOnly) == 0) && (Volume->VolIconImage != NULL)) {
+   // Anything found here takes precedence over the "hints" in the OSIconName variable
+   while ((Temp = FindCommaDelimited(ICON_EXTENSIONS, i++)) != NULL) {
+      MergeStrings(&IconNames, NoExtension, L',');
+      MergeStrings(&IconNames, Temp, L'.');
+      MyFreePool(Temp);
+   }
+   Entry->me.Image = LoadIcns(Volume->RootDir, IconNames, 128);
+   if (!Entry->me.Image)
       Entry->me.Image = Volume->VolIconImage;
-   } // icon matched to loader or volume
+   MyFreePool(IconNames);
 
+   // Begin creating icon "hints" by using last part of directory path leading
+   // to the loader
    Temp = FindLastDirName(LoaderPath);
    MergeStrings(&OSIconName, Temp, L',');
-   FreePool(Temp);
+   MyFreePool(Temp);
+   Temp = NULL;
    if (OSIconName != NULL) {
       ShortcutLetter = OSIconName[0];
    }
 
+   // Add every "word" in the volume label, delimited by spaces, dashes (-), or
+   // underscores (_), to the list of hints to be used in searching for OS
+   // icons.
+   if ((Volume->VolName) && (StrLen(Volume->VolName) > 0)) {
+      Temp = SubString = StrDuplicate(Volume->VolName);
+      if (Temp != NULL) {
+         Length = StrLen(Temp);
+         for (i = 0; i < Length; i++) {
+            if ((Temp[i] == L' ') || (Temp[i] == L'_') || (Temp[i] == L'-')) {
+               Temp[i] = 0;
+               if (StrLen(SubString) > 0)
+                  MergeStrings(&OSIconName, SubString, L',');
+               SubString = Temp + i + 1;
+            } // if
+         } // for
+         MergeStrings(&OSIconName, SubString, L',');
+         MyFreePool(Temp);
+      } // if
+   } // if
+
    // detect specific loaders
    if (StriSubCmp(L"bzImage", LoaderPath) || StriSubCmp(L"vmlinuz", LoaderPath)) {
       MergeStrings(&OSIconName, L"linux", L',');
@@ -696,7 +783,7 @@ VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, IN REFIT_VOLUME
       Entry->UseGraphicsMode = GlobalConfig.GraphicsFor & GRAPHICS_FOR_OSX;
    } else if (StriCmp(FileName, L"diags.efi") == 0) {
       MergeStrings(&OSIconName, L"hwtest", L',');
-   } else if (StriCmp(FileName, L"e.efi") == 0 || StriCmp(FileName, L"elilo.efi") == 0) {
+   } else if (StriCmp(FileName, L"e.efi") == 0 || StriCmp(FileName, L"elilo.efi") == 0 || StriSubCmp(L"elilo", FileName)) {
       MergeStrings(&OSIconName, L"elilo,linux", L',');
       Entry->OSType = 'E';
       if (ShortcutLetter == 0)
@@ -708,7 +795,7 @@ VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, IN REFIT_VOLUME
       Entry->UseGraphicsMode = GlobalConfig.GraphicsFor & GRAPHICS_FOR_GRUB;
    } else if (StriCmp(FileName, L"cdboot.efi") == 0 ||
               StriCmp(FileName, L"bootmgr.efi") == 0 ||
-              StriCmp(FileName, L"Bootmgfw.efi") == 0) {
+              StriCmp(FileName, L"bootmgfw.efi") == 0) {
       MergeStrings(&OSIconName, L"win", L',');
       Entry->OSType = 'W';
       ShortcutLetter = 'W';
@@ -726,8 +813,7 @@ VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, IN REFIT_VOLUME
    Entry->me.ShortcutLetter = ShortcutLetter;
    if (Entry->me.Image == NULL)
       Entry->me.Image = LoadOSIcon(OSIconName, L"unknown", FALSE);
-   if (PathOnly != NULL)
-      FreePool(PathOnly);
+   MyFreePool(PathOnly);
 } // VOID SetLoaderDefaults()
 
 // Add a specified EFI boot loader to the list, using automatic settings
@@ -763,12 +849,11 @@ LOADER_ENTRY * AddLoaderEntry(IN CHAR16 *LoaderPath, IN CHAR16 *LoaderTitle, IN
 // (Time1 == Time2). Precision is only to the nearest second; since
 // this is used for sorting boot loader entries, differences smaller
 // than this are likely to be meaningless (and unlikely!).
-INTN TimeComp(EFI_TIME *Time1, EFI_TIME *Time2) {
+INTN TimeComp(IN EFI_TIME *Time1, IN EFI_TIME *Time2) {
    INT64 Time1InSeconds, Time2InSeconds;
 
    // Following values are overestimates; I'm assuming 31 days in every month.
-   // This is fine for the purpose of this function, which has a limited
-   // purpose.
+   // This is fine for the purpose of this function, which is limited
    Time1InSeconds = Time1->Second + (Time1->Minute * 60) + (Time1->Hour * 3600) + (Time1->Day * 86400) +
                     (Time1->Month * 2678400) + ((Time1->Year - 1998) * 32140800);
    Time2InSeconds = Time2->Second + (Time2->Minute * 60) + (Time2->Hour * 3600) + (Time2->Day * 86400) +
@@ -811,11 +896,45 @@ static VOID CleanUpLoaderList(struct LOADER_LIST *LoaderList) {
    while (LoaderList != NULL) {
       Temp = LoaderList;
       LoaderList = LoaderList->NextEntry;
-      FreePool(Temp->FileName);
-      FreePool(Temp);
+      MyFreePool(Temp->FileName);
+      MyFreePool(Temp);
    } // while
 } // static VOID CleanUpLoaderList()
 
+// Returns FALSE if the specified file/volume matches the GlobalConfig.DontScanDirs
+// or GlobalConfig.DontScanVolumes specification, or if Path points to a volume
+// other than the one specified by Volume. Returns TRUE if none of these conditions
+// is met -- that is, if the path is eligible for scanning. Also reduces *Path to a
+// path alone, with no volume specification.
+static BOOLEAN ShouldScan(REFIT_VOLUME *Volume, CHAR16 *Path) {
+   CHAR16   *VolName = NULL, *DontScanDir;
+   UINTN    i = 0, VolNum;
+   BOOLEAN  ScanIt = TRUE;
+
+   if (IsIn(Volume->VolName, GlobalConfig.DontScanVolumes))
+      return FALSE;
+
+   while ((DontScanDir = FindCommaDelimited(GlobalConfig.DontScanDirs, i++)) && ScanIt) {
+      SplitVolumeAndFilename(&DontScanDir, &VolName);
+      CleanUpPathNameSlashes(DontScanDir);
+      if (VolName != NULL) {
+         if ((StriCmp(VolName, Volume->VolName) == 0) && (StriCmp(DontScanDir, Path) == 0))
+            ScanIt = FALSE;
+         if ((StrLen(VolName) > 2) && (VolName[0] == L'f') && (VolName[1] == L's') && (VolName[2] >= L'0') && (VolName[2] <= L'9')) {
+            VolNum = Atoi(VolName + 2);
+            if ((VolNum == Volume->VolNumber) && (StriCmp(DontScanDir, Path) == 0))
+               ScanIt = FALSE;
+         }
+      } else {
+         if (StriCmp(DontScanDir, Path) == 0)
+            ScanIt = FALSE;
+      }
+      MyFreePool(DontScanDir);
+      DontScanDir = NULL;
+   }
+   return ScanIt;
+} // BOOLEAN ShouldScan()
+
 // Scan an individual directory for EFI boot loader files and, if found,
 // add them to the list. Sorts the entries within the loader directory
 // so that the most recent one appears first in the list.
@@ -827,24 +946,24 @@ static VOID ScanLoaderDir(IN REFIT_VOLUME *Volume, IN CHAR16 *Path, IN CHAR16 *P
     CHAR16                  FileName[256], *Extension;
     struct LOADER_LIST      *LoaderList = NULL, *NewLoader;
 
-    if ((!SelfDirPath || !Path || ((StriCmp(Path, SelfDirPath) == 0) && Volume->DeviceHandle != SelfVolume->DeviceHandle) ||
-        (StriCmp(Path, SelfDirPath) != 0)) && (!IsIn(Path, GlobalConfig.DontScan))) {
+    if ((!SelfDirPath || !Path || ((StriCmp(Path, SelfDirPath) == 0) && (Volume->DeviceHandle != SelfVolume->DeviceHandle)) ||
+           (StriCmp(Path, SelfDirPath) != 0)) &&
+           (ShouldScan(Volume, Path))) {
        // look through contents of the directory
        DirIterOpen(Volume->RootDir, Path, &DirIter);
        while (DirIterNext(&DirIter, 2, Pattern, &DirEntry)) {
           Extension = FindExtension(DirEntry->FileName);
           if (DirEntry->FileName[0] == '.' ||
-              StriCmp(DirEntry->FileName, L"TextMode.efi") == 0 ||
-              StriCmp(DirEntry->FileName, L"ebounce.efi") == 0 ||
-              StriCmp(DirEntry->FileName, L"GraphicsConsole.efi") == 0 ||
               StriCmp(Extension, L".icns") == 0 ||
-              StriSubCmp(L"shell", DirEntry->FileName))
+              StriCmp(Extension, L".png") == 0 ||
+              StriSubCmp(L"shell", DirEntry->FileName) ||
+              IsIn(DirEntry->FileName, GlobalConfig.DontScanFiles))
                 continue;   // skip this
 
           if (Path)
-                SPrint(FileName, 255, L"\\%s\\%s", Path, DirEntry->FileName);
+             SPrint(FileName, 255, L"\\%s\\%s", Path, DirEntry->FileName);
           else
-                SPrint(FileName, 255, L"\\%s", DirEntry->FileName);
+             SPrint(FileName, 255, L"\\%s", DirEntry->FileName);
           CleanUpPathNameSlashes(FileName);
           NewLoader = AllocateZeroPool(sizeof(struct LOADER_LIST));
           if (NewLoader != NULL) {
@@ -852,7 +971,7 @@ static VOID ScanLoaderDir(IN REFIT_VOLUME *Volume, IN CHAR16 *Path, IN CHAR16 *P
              NewLoader->TimeStamp = DirEntry->ModificationTime;
              LoaderList = AddLoaderListEntry(LoaderList, NewLoader);
           } // if
-          FreePool(Extension);
+          MyFreePool(Extension);
        } // while
        NewLoader = LoaderList;
        while (NewLoader != NULL) {
@@ -863,9 +982,9 @@ static VOID ScanLoaderDir(IN REFIT_VOLUME *Volume, IN CHAR16 *Path, IN CHAR16 *P
        Status = DirIterClose(&DirIter);
        if (Status != EFI_NOT_FOUND) {
           if (Path)
-                SPrint(FileName, 255, L"while scanning the %s directory", Path);
+             SPrint(FileName, 255, L"while scanning the %s directory", Path);
           else
-                StrCpy(FileName, L"while scanning the root directory");
+             StrCpy(FileName, L"while scanning the root directory");
           CheckError(Status, FileName);
        } // if (Status != EFI_NOT_FOUND)
     } // if not scanning our own directory
@@ -875,31 +994,32 @@ static VOID ScanEfiFiles(REFIT_VOLUME *Volume) {
    EFI_STATUS              Status;
    REFIT_DIR_ITER          EfiDirIter;
    EFI_FILE_INFO           *EfiDirEntry;
-   CHAR16                  FileName[256], *Directory, *MatchPatterns;
-   UINTN                   i, Length;
+   CHAR16                  FileName[256], *Directory, *MatchPatterns, *VolName = NULL;
+   UINTN                   i, Length, VolNum;
 
-    MatchPatterns = StrDuplicate(LOADER_MATCH_PATTERNS);
-    if (GlobalConfig.ScanAllLinux)
-       MergeStrings(&MatchPatterns, LINUX_MATCH_PATTERNS, L',');
+   MatchPatterns = StrDuplicate(LOADER_MATCH_PATTERNS);
+   if (GlobalConfig.ScanAllLinux)
+      MergeStrings(&MatchPatterns, LINUX_MATCH_PATTERNS, L',');
 
    if ((Volume->RootDir != NULL) && (Volume->VolName != NULL)) {
       // check for Mac OS X boot loader
-      if (!IsIn(L"System\\Library\\CoreServices", GlobalConfig.DontScan)) {
+      if (!IsIn(L"System\\Library\\CoreServices", GlobalConfig.DontScanDirs)) {
          StrCpy(FileName, MACOSX_LOADER_PATH);
-         if (FileExists(Volume->RootDir, FileName)) {
+         if (FileExists(Volume->RootDir, FileName) && !IsIn(L"boot.efi", GlobalConfig.DontScanFiles)) {
             AddLoaderEntry(FileName, L"Mac OS X", Volume);
          }
 
          // check for XOM
          StrCpy(FileName, L"System\\Library\\CoreServices\\xom.efi");
-         if (FileExists(Volume->RootDir, FileName)) {
+         if (FileExists(Volume->RootDir, FileName) && !IsIn(L"boot.efi", GlobalConfig.DontScanFiles)) {
             AddLoaderEntry(FileName, L"Windows XP (XoM)", Volume);
          }
-      } // if Mac directory not in GlobalConfig.DontScan list
+      } // if Mac directory not in GlobalConfig.DontScanDirs list
 
       // check for Microsoft boot loader/menu
       StrCpy(FileName, L"EFI\\Microsoft\\Boot\\Bootmgfw.efi");
-      if (FileExists(Volume->RootDir, FileName) && !IsIn(L"EFI\\Microsoft\\Boot", GlobalConfig.DontScan)) {
+      if (FileExists(Volume->RootDir, FileName) && !IsIn(L"EFI\\Microsoft\\Boot", GlobalConfig.DontScanDirs) &&
+          !IsIn(L"bootmgfw.efi", GlobalConfig.DontScanFiles)) {
          AddLoaderEntry(FileName, L"Microsoft EFI boot", Volume);
       }
 
@@ -921,11 +1041,17 @@ static VOID ScanEfiFiles(REFIT_VOLUME *Volume) {
       // Scan user-specified (or additional default) directories....
       i = 0;
       while ((Directory = FindCommaDelimited(GlobalConfig.AlsoScan, i++)) != NULL) {
+         VolNum = VOL_DONTSCAN;
+         SplitVolumeAndFilename(&Directory, &VolName);
          CleanUpPathNameSlashes(Directory);
          Length = StrLen(Directory);
-         if (Length > 0)
+         if (VolName && (Length > 0) && (StrLen(VolName) > 2) && (VolName[0] == L'f') && (VolName[1] == L's') &&
+             (VolName[2] >= L'0') && (VolName[2] <= L'9'))
+            VolNum = Atoi(VolName + 2);
+         if ((Length > 0) && ((VolName == NULL) || (StriCmp(VolName, Volume->VolName) == 0) || (Volume->VolNumber == VolNum)))
             ScanLoaderDir(Volume, Directory, MatchPatterns);
-         FreePool(Directory);
+         MyFreePool(Directory);
+         MyFreePool(VolName);
       } // while
    } // if
 } // static VOID ScanEfiFiles()
@@ -1128,7 +1254,7 @@ static VOID StartLegacy(IN LEGACY_ENTRY *Entry)
     UINTN               ErrorInStep = 0;
     EFI_DEVICE_PATH     *DiscoveredPathList[MAX_DISCOVERED_PATHS];
 
-    BeginExternalScreen(TRUE, L"Booting Legacy OS");
+    BeginExternalScreen(TRUE, L"Booting Legacy OS (Mac mode)");
 
     BootLogoImage = LoadOSIcon(Entry->Volume->OSIconName, L"legacy", TRUE);
     if (BootLogoImage != NULL)
@@ -1137,12 +1263,13 @@ static VOID StartLegacy(IN LEGACY_ENTRY *Entry)
                       (UGAHeight - BootLogoImage->Height) >> 1,
                       &StdBackgroundPixel);
 
-    if (Entry->Volume->IsMbrPartition)
+    if (Entry->Volume->IsMbrPartition) {
         ActivateMbrPartition(Entry->Volume->WholeDiskBlockIO, Entry->Volume->MbrPartitionIndex);
+    }
 
     ExtractLegacyLoaderPaths(DiscoveredPathList, MAX_DISCOVERED_PATHS, LegacyLoaderList);
 
-    Status = StartEFIImageList(DiscoveredPathList, Entry->LoadOptions, NULL, L"legacy loader", &ErrorInStep, TRUE);
+    Status = StartEFIImageList(DiscoveredPathList, Entry->LoadOptions, NULL, L"legacy loader", 0, &ErrorInStep, TRUE);
     if (Status == EFI_NOT_FOUND) {
         if (ErrorInStep == 1) {
             Print(L"\nPlease make sure that you have the latest firmware update installed.\n");
@@ -1154,6 +1281,22 @@ static VOID StartLegacy(IN LEGACY_ENTRY *Entry)
     FinishExternalScreen();
 } /* static VOID StartLegacy() */
 
+// Start a device on a non-Mac using the EFI_LEGACY_BIOS_PROTOCOL
+#ifdef __MAKEWITH_TIANO
+static VOID StartLegacyUEFI(IN LEGACY_ENTRY *Entry)
+{
+    BeginExternalScreen(TRUE, L"Booting Legacy OS (UEFI mode)");
+
+    BdsLibConnectDevicePath (Entry->BdsOption->DevicePath);
+    BdsLibDoLegacyBoot(Entry->BdsOption);
+
+    // If we get here, it means that there was a failure....
+    Print(L"Failure booting legacy (BIOS) OS.");
+    PauseForKey();
+    FinishExternalScreen();
+} // static VOID StartLegacyUEFI()
+#endif // __MAKEWITH_TIANO
+
 static LEGACY_ENTRY * AddLegacyEntry(IN CHAR16 *LoaderTitle, IN REFIT_VOLUME *Volume)
 {
     LEGACY_ENTRY            *Entry, *SubEntry;
@@ -1193,6 +1336,12 @@ static LEGACY_ENTRY * AddLegacyEntry(IN CHAR16 *LoaderTitle, IN REFIT_VOLUME *Vo
     SubScreen->Title = AllocateZeroPool(256 * sizeof(CHAR16));
     SPrint(SubScreen->Title, 255, L"Boot Options for %s on %s", LoaderTitle, VolDesc);
     SubScreen->TitleImage = Entry->me.Image;
+    SubScreen->Hint1 = StrDuplicate(SUBSCREEN_HINT1);
+    if (GlobalConfig.HideUIFlags & HIDEUI_FLAG_EDITOR) {
+       SubScreen->Hint2 = StrDuplicate(SUBSCREEN_HINT2_NO_EDITOR);
+    } else {
+       SubScreen->Hint2 = StrDuplicate(SUBSCREEN_HINT2);
+    } // if/else
 
     // default entry
     SubEntry = AllocateZeroPool(sizeof(LEGACY_ENTRY));
@@ -1209,6 +1358,140 @@ static LEGACY_ENTRY * AddLegacyEntry(IN CHAR16 *LoaderTitle, IN REFIT_VOLUME *Vo
     return Entry;
 } /* static LEGACY_ENTRY * AddLegacyEntry() */
 
+
+#ifdef __MAKEWITH_GNUEFI
+static VOID ScanLegacyUEFI(IN UINTN DiskType){}
+#else
+// default volume badge icon based on disk kind
+static EG_IMAGE * GetDiskBadge(IN UINTN DiskType) {
+   EG_IMAGE * Badge = NULL;
+
+   switch (DiskType) {
+      case BBS_HARDDISK:
+         Badge = BuiltinIcon(BUILTIN_ICON_VOL_INTERNAL);
+         break;
+      case BBS_USB:
+         Badge = BuiltinIcon(BUILTIN_ICON_VOL_EXTERNAL);
+         break;
+      case BBS_CDROM:
+         Badge = BuiltinIcon(BUILTIN_ICON_VOL_OPTICAL);
+         break;
+   } // switch()
+   return Badge;
+} // static EG_IMAGE * GetDiskBadge()
+
+/**
+    Create a rEFInd boot option from a Legacy BIOS protocol option.
+*/
+static LEGACY_ENTRY * AddLegacyEntryUEFI(BDS_COMMON_OPTION *BdsOption, IN UINT16 DiskType)
+{
+    LEGACY_ENTRY            *Entry, *SubEntry;
+    REFIT_MENU_SCREEN       *SubScreen;
+    CHAR16                  ShortcutLetter = 0;
+    CHAR16 *LegacyDescription = BdsOption->Description;
+
+//    ScanVolume(Volume);
+
+    // prepare the menu entry
+    Entry = AllocateZeroPool(sizeof(LEGACY_ENTRY));
+    Entry->me.Title = AllocateZeroPool(256 * sizeof(CHAR16));
+    SPrint(Entry->me.Title, 255, L"Boot legacy target %s", LegacyDescription);
+    Entry->me.Tag          = TAG_LEGACY_UEFI;
+    Entry->me.Row          = 0;
+    Entry->me.ShortcutLetter = ShortcutLetter;
+    Entry->me.Image        = LoadOSIcon(L"legacy", L"legacy", TRUE);
+    Entry->LoadOptions     = (DiskType == BBS_CDROM) ? L"CD" :
+                             ((DiskType == BBS_USB) ? L"USB" : L"HD");
+    Entry->me.BadgeImage   = GetDiskBadge(DiskType);
+//    Entry->me.BadgeImage   = Volume->VolBadgeImage;
+    Entry->BdsOption       = BdsOption;
+    Entry->Enabled         = TRUE;
+
+    // create the submenu
+    SubScreen = AllocateZeroPool(sizeof(REFIT_MENU_SCREEN));
+    SubScreen->Title = AllocateZeroPool(256 * sizeof(CHAR16));
+    SPrint(SubScreen->Title, 255, L"No boot options for legacy target");
+    SubScreen->TitleImage = Entry->me.Image;
+    SubScreen->Hint1 = StrDuplicate(SUBSCREEN_HINT1);
+    if (GlobalConfig.HideUIFlags & HIDEUI_FLAG_EDITOR) {
+       SubScreen->Hint2 = StrDuplicate(SUBSCREEN_HINT2_NO_EDITOR);
+    } else {
+       SubScreen->Hint2 = StrDuplicate(SUBSCREEN_HINT2);
+    } // if/else
+
+    // default entry
+    SubEntry = AllocateZeroPool(sizeof(LEGACY_ENTRY));
+    SubEntry->me.Title = AllocateZeroPool(256 * sizeof(CHAR16));
+    SPrint(SubEntry->me.Title, 255, L"Boot %s", LegacyDescription);
+    SubEntry->me.Tag          = TAG_LEGACY_UEFI;
+    Entry->BdsOption          = BdsOption; 
+    AddMenuEntry(SubScreen, (REFIT_MENU_ENTRY *)SubEntry);
+
+    AddMenuEntry(SubScreen, &MenuEntryReturn);
+    Entry->me.SubScreen = SubScreen;
+    AddMenuEntry(&MainMenu, (REFIT_MENU_ENTRY *)Entry);
+    return Entry;
+} /* static LEGACY_ENTRY * AddLegacyEntryUEFI() */
+
+/**
+    Scan for legacy BIOS targets on machines that implement EFI_LEGACY_BIOS_PROTOCOL.
+    In testing, protocol has not been implemented on Macs but has been
+    implemented on several Dell PCs and an ASUS motherboard.
+    Restricts output to disks of the specified DiskType.
+*/
+static VOID ScanLegacyUEFI(IN UINTN DiskType)
+{
+    EFI_STATUS                Status;
+    EFI_LEGACY_BIOS_PROTOCOL  *LegacyBios;
+    UINT16                    *BootOrder = NULL;
+    UINTN                     Index = 0;
+    CHAR16                    BootOption[10];
+    UINTN                     BootOrderSize = 0;
+    CHAR16            Buffer[20];
+    BDS_COMMON_OPTION *BdsOption;
+    LIST_ENTRY        TempList;
+    BBS_BBS_DEVICE_PATH * BbsDevicePath = NULL;
+
+    InitializeListHead (&TempList);
+    ZeroMem (Buffer, sizeof (Buffer));
+
+    // If LegacyBios protocol is not implemented on this platform, then
+    //we do not support this type of legacy boot on this machine.
+    Status = gBS->LocateProtocol(&gEfiLegacyBootProtocolGuid, NULL, (VOID **) &LegacyBios);
+    if (EFI_ERROR (Status))
+        return;
+
+    // Grab the boot order
+    BootOrder = BdsLibGetVariableAndSize(L"BootOrder", &gEfiGlobalVariableGuid, &BootOrderSize);
+    if (BootOrder == NULL) {
+        BootOrderSize = 0;
+    }
+
+    Index = 0;
+    while (Index < BootOrderSize / sizeof (UINT16))
+    {
+        // Grab each boot option variable from the boot order, and convert
+        // the variable into a BDS boot option
+        UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);
+        BdsOption = BdsLibVariableToOption (&TempList, BootOption);
+
+        if (BdsOption != NULL) {
+           BbsDevicePath = (BBS_BBS_DEVICE_PATH *)BdsOption->DevicePath;
+
+           // Only add the entry if it is of a requested type (e.g. USB, HD)
+
+           // Two checks necessary because some systems return EFI boot loaders
+           // with a DeviceType value that would inappropriately include them
+           // as legacy loaders....
+           if ((BbsDevicePath->DeviceType == DiskType) && (BdsOption->DevicePath->Type == DEVICE_TYPE_BIOS)) {
+              AddLegacyEntryUEFI(BdsOption, BbsDevicePath->DeviceType);
+           }
+        }
+        Index++;
+    }
+} /* static VOID ScanLegacyUEFI() */
+#endif // __MAKEWITH_GNUEFI
+
 static VOID ScanLegacyVolume(REFIT_VOLUME *Volume, UINTN VolumeIndex) {
    UINTN VolumeIndex2;
    BOOLEAN ShowVolume, HideIfOthersFound;
@@ -1246,11 +1529,15 @@ static VOID ScanLegacyDisc(VOID)
    UINTN                   VolumeIndex;
    REFIT_VOLUME            *Volume;
 
-   for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
-      Volume = Volumes[VolumeIndex];
-      if (Volume->DiskKind == DISK_KIND_OPTICAL)
-         ScanLegacyVolume(Volume, VolumeIndex);
-   } // for
+   if (GlobalConfig.LegacyType == LEGACY_TYPE_MAC) {
+      for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
+         Volume = Volumes[VolumeIndex];
+         if (Volume->DiskKind == DISK_KIND_OPTICAL)
+            ScanLegacyVolume(Volume, VolumeIndex);
+      } // for
+   } else if (GlobalConfig.LegacyType == LEGACY_TYPE_UEFI) {
+      ScanLegacyUEFI(BBS_CDROM);
+   }
 } /* static VOID ScanLegacyDisc() */
 
 // Scan internal hard disks for legacy (BIOS) boot code
@@ -1260,11 +1547,15 @@ static VOID ScanLegacyInternal(VOID)
     UINTN                   VolumeIndex;
     REFIT_VOLUME            *Volume;
 
-    for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
-        Volume = Volumes[VolumeIndex];
-        if (Volume->DiskKind == DISK_KIND_INTERNAL)
-            ScanLegacyVolume(Volume, VolumeIndex);
-    } // for
+    if (GlobalConfig.LegacyType == LEGACY_TYPE_MAC) {
+       for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
+           Volume = Volumes[VolumeIndex];
+           if (Volume->DiskKind == DISK_KIND_INTERNAL)
+               ScanLegacyVolume(Volume, VolumeIndex);
+       } // for
+    } else if (GlobalConfig.LegacyType == LEGACY_TYPE_UEFI) {
+       ScanLegacyUEFI(BBS_HARDDISK);
+    }
 } /* static VOID ScanLegacyInternal() */
 
 // Scan external disks for legacy (BIOS) boot code
@@ -1274,11 +1565,15 @@ static VOID ScanLegacyExternal(VOID)
    UINTN                   VolumeIndex;
    REFIT_VOLUME            *Volume;
 
-   for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
-      Volume = Volumes[VolumeIndex];
-      if (Volume->DiskKind == DISK_KIND_EXTERNAL)
-         ScanLegacyVolume(Volume, VolumeIndex);
-   } // for
+   if (GlobalConfig.LegacyType == LEGACY_TYPE_MAC) {
+      for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
+         Volume = Volumes[VolumeIndex];
+         if (Volume->DiskKind == DISK_KIND_EXTERNAL)
+            ScanLegacyVolume(Volume, VolumeIndex);
+      } // for
+   } else if (GlobalConfig.LegacyType == LEGACY_TYPE_UEFI) {
+      ScanLegacyUEFI(BBS_USB);
+   }
 } /* static VOID ScanLegacyExternal() */
 
 //
@@ -1289,11 +1584,11 @@ static VOID StartTool(IN LOADER_ENTRY *Entry)
 {
    BeginExternalScreen(Entry->UseGraphicsMode, Entry->me.Title + 6);  // assumes "Start <title>" as assigned below
    StartEFIImage(Entry->DevicePath, Entry->LoadOptions, Basename(Entry->LoaderPath),
-                 Basename(Entry->LoaderPath), NULL, TRUE);
+                 Basename(Entry->LoaderPath), Entry->OSType, NULL, TRUE);
    FinishExternalScreen();
 } /* static VOID StartTool() */
 
-static LOADER_ENTRY * AddToolEntry(IN CHAR16 *LoaderPath, IN CHAR16 *LoaderTitle, IN EG_IMAGE *Image,
+static LOADER_ENTRY * AddToolEntry(EFI_HANDLE DeviceHandle, IN CHAR16 *LoaderPath, IN CHAR16 *LoaderTitle, IN EG_IMAGE *Image,
                                    IN CHAR16 ShortcutLetter, IN BOOLEAN UseGraphicsMode)
 {
     LOADER_ENTRY *Entry;
@@ -1308,8 +1603,8 @@ static LOADER_ENTRY * AddToolEntry(IN CHAR16 *LoaderPath, IN CHAR16 *LoaderTitle
     Entry->me.Row = 1;
     Entry->me.ShortcutLetter = ShortcutLetter;
     Entry->me.Image = Image;
-    Entry->LoaderPath = StrDuplicate(LoaderPath);
-    Entry->DevicePath = FileDevicePath(SelfLoadedImage->DeviceHandle, Entry->LoaderPath);
+    Entry->LoaderPath = (LoaderPath) ? StrDuplicate(LoaderPath) : NULL;
+    Entry->DevicePath = FileDevicePath(DeviceHandle, Entry->LoaderPath);
     Entry->UseGraphicsMode = UseGraphicsMode;
 
     AddMenuEntry(&MainMenu, (REFIT_MENU_ENTRY *)Entry);
@@ -1338,7 +1633,7 @@ static UINTN ScanDriverDir(IN CHAR16 *Path)
         SPrint(FileName, 255, L"%s\\%s", Path, DirEntry->FileName);
         NumFound++;
         Status = StartEFIImage(FileDevicePath(SelfLoadedImage->DeviceHandle, FileName),
-                               L"", DirEntry->FileName, DirEntry->FileName, NULL, FALSE);
+                               L"", DirEntry->FileName, DirEntry->FileName, 0, NULL, FALSE);
     }
     Status = DirIterClose(&DirIter);
     if (Status != EFI_NOT_FOUND) {
@@ -1408,12 +1703,12 @@ static EFI_STATUS ConnectAllDriversToAllControllers(VOID)
             }
         }
 
-        FreePool (HandleBuffer);
-        FreePool (HandleType);
+        MyFreePool (HandleBuffer);
+        MyFreePool (HandleType);
     }
 
 Done:
-    FreePool (AllHandleBuffer);
+    MyFreePool (AllHandleBuffer);
     return Status;
 } /* EFI_STATUS ConnectAllDriversToAllControllers() */
 #else
@@ -1434,12 +1729,12 @@ static VOID LoadDrivers(VOID)
     // load drivers from the subdirectories of rEFInd's home directory specified
     // in the DRIVER_DIRS constant.
     while ((Directory = FindCommaDelimited(DRIVER_DIRS, i++)) != NULL) {
-       SelfDirectory = StrDuplicate(SelfDirPath);
+       SelfDirectory = SelfDirPath ? StrDuplicate(SelfDirPath) : NULL;
        CleanUpPathNameSlashes(SelfDirectory);
        MergeStrings(&SelfDirectory, Directory, L'\\');
        NumFound += ScanDriverDir(SelfDirectory);
-       FreePool(Directory);
-       FreePool(SelfDirectory);
+       MyFreePool(Directory);
+       MyFreePool(SelfDirectory);
     }
 
     // Scan additional user-specified driver directories....
@@ -1447,9 +1742,10 @@ static VOID LoadDrivers(VOID)
     while ((Directory = FindCommaDelimited(GlobalConfig.DriverDirs, i++)) != NULL) {
        CleanUpPathNameSlashes(Directory);
        Length = StrLen(Directory);
-       if (Length > 0)
+       if (Length > 0) {
           NumFound += ScanDriverDir(Directory);
-       FreePool(Directory);
+       } // if
+       MyFreePool(Directory);
     } // while
 
     // connect all devices
@@ -1457,8 +1753,64 @@ static VOID LoadDrivers(VOID)
        ConnectAllDriversToAllControllers();
 } /* static VOID LoadDrivers() */
 
+// Determine what (if any) type of legacy (BIOS) boot support is available
+static VOID FindLegacyBootType(VOID) {
+#ifdef __MAKEWITH_TIANO
+   EFI_STATUS                Status;
+   EFI_LEGACY_BIOS_PROTOCOL  *LegacyBios;
+#endif
+
+   GlobalConfig.LegacyType = LEGACY_TYPE_NONE;
+
+   // UEFI-style legacy BIOS support is available only with the TianoCore EDK2
+   // build environment, and then only with some EFI implementations....
+#ifdef __MAKEWITH_TIANO
+   Status = gBS->LocateProtocol (&gEfiLegacyBootProtocolGuid, NULL, (VOID **) &LegacyBios);
+   if (!EFI_ERROR (Status))
+      GlobalConfig.LegacyType = LEGACY_TYPE_UEFI;
+#endif
+
+   // Macs have their own system. If the firmware vendor code contains the
+   // string "Apple", assume it's available. Note that this overrides the
+   // UEFI type, and might yield false positives if the vendor string
+   // contains "Apple" as part of something bigger, so this isn't 100%
+   // perfect.
+   if (StriSubCmp(L"Apple", ST->FirmwareVendor))
+      GlobalConfig.LegacyType = LEGACY_TYPE_MAC;
+} // static VOID FindLegacyBootType
+
+// Warn the user if legacy OS scans are enabled but the firmware or this
+// application can't support them....
+static VOID WarnIfLegacyProblems() {
+   BOOLEAN  found = FALSE;
+   UINTN    i = 0;
+
+   if (GlobalConfig.LegacyType == LEGACY_TYPE_NONE) {
+      do {
+         if (GlobalConfig.ScanFor[i] == 'h' || GlobalConfig.ScanFor[i] == 'b' || GlobalConfig.ScanFor[i] == 'c')
+            found = TRUE;
+         i++;
+      } while ((i < NUM_SCAN_OPTIONS) && (!found));
+      if (found) {
+         Print(L"NOTE: refind.conf's 'scanfor' line specifies scanning for one or more legacy\n");
+         Print(L"(BIOS) boot options; however, this is not possible because ");
+#ifdef __MAKEWITH_TIANO
+         Print(L"your computer lacks\n");
+         Print(L"the necessary Compatibility Support Module (CSM) support.\n");
+#else
+         Print(L"this program was\n");
+         Print(L"compiled without the necessary support. Please visit\n");
+         Print(L"http://www.rodsbooks.com/refind/getting.html and download and install a rEFInd\n");
+         Print(L"binary built with the TianoCore EDK2 to enable legacy boot support.\n");
+#endif
+         PauseForKey();
+      } // if (found)
+   } // if no legacy support
+} // static VOID WarnIfLegacyProblems()
+
+// Locates boot loaders. NOTE: This assumes that GlobalConfig.LegacyType is set correctly.
 static VOID ScanForBootloaders(VOID) {
-   UINTN i;
+   UINTN                     i;
 
    ScanVolumes();
 
@@ -1500,9 +1852,9 @@ static VOID ScanForBootloaders(VOID) {
 // Add the second-row tags containing built-in and external tools (EFI shell,
 // reboot, etc.)
 static VOID ScanForTools(VOID) {
-   CHAR16 *FileName = NULL;
+   CHAR16 *FileName = NULL, Description[256];
    REFIT_MENU_ENTRY *TempMenuEntry;
-   UINTN i, j;
+   UINTN i, j, VolumeIndex;
 
    for (i = 0; i < NUM_TOOLS; i++) {
       switch(GlobalConfig.ShowTools[i]) {
@@ -1528,23 +1880,56 @@ static VOID ScanForTools(VOID) {
             break;
          case TAG_SHELL:
             j = 0;
+            MyFreePool(FileName);
             while ((FileName = FindCommaDelimited(SHELL_NAMES, j++)) != NULL) {
                if (FileExists(SelfRootDir, FileName)) {
-                  AddToolEntry(FileName, L"EFI Shell", BuiltinIcon(BUILTIN_ICON_TOOL_SHELL), 'S', FALSE);
+                  AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, L"EFI Shell", BuiltinIcon(BUILTIN_ICON_TOOL_SHELL),
+                               'S', FALSE);
                }
             } // while
             break;
          case TAG_GPTSYNC:
-            MergeStrings(&FileName, L"\\efi\\tools\\gptsync.efi", 0);
+            MyFreePool(FileName);
+            FileName = StrDuplicate(L"\\efi\\tools\\gptsync.efi");
+//            MergeStrings(&FileName, L"\\efi\\tools\\gptsync.efi", 0);
             if (FileExists(SelfRootDir, FileName)) {
-               AddToolEntry(FileName, L"Make Hybrid MBR", BuiltinIcon(BUILTIN_ICON_TOOL_PART), 'P', FALSE);
+               AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, L"Make Hybrid MBR", BuiltinIcon(BUILTIN_ICON_TOOL_PART), 'P', FALSE);
+            }
+            break;
+         case TAG_APPLE_RECOVERY:
+            MyFreePool(FileName);
+            FileName = StrDuplicate(L"\\com.apple.recovery.boot\\boot.efi");
+//            MergeStrings(&FileName, L"\\com.apple.recovery.boot\\boot.efi", 0);
+            for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
+               if ((Volumes[VolumeIndex]->RootDir != NULL) && (FileExists(Volumes[VolumeIndex]->RootDir, FileName))) {
+                  SPrint(Description, 255, L"Apple Recovery on %s", Volumes[VolumeIndex]->VolName);
+                  AddToolEntry(Volumes[VolumeIndex]->DeviceHandle, FileName, Description,
+                               BuiltinIcon(BUILTIN_ICON_TOOL_APPLE_RESCUE), 'R', TRUE);
+               }
+            } // for
+            break;
+         case TAG_MOK_TOOL:
+            j = 0;
+            MyFreePool(FileName);
+            while ((FileName = FindCommaDelimited(MOK_NAMES, j++)) != NULL) {
+               if (FileExists(SelfRootDir, FileName)) {
+                  SPrint(Description, 255, L"MOK Key Manager at %s", FileName);
+                  AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, Description,
+                               BuiltinIcon(BUILTIN_ICON_TOOL_MOK_TOOL), 'S', FALSE);
+               }
+            } // while
+            if (FileExists(SelfDir, L"MokManager.efi")) {
+               MyFreePool(FileName);
+               FileName = StrDuplicate(SelfDirPath);
+               MergeStrings(&FileName, L"\\MokManager.efi", 0);
+               SPrint(Description, 255, L"MOK Key Manager at %s", FileName);
+               AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, Description,
+                            BuiltinIcon(BUILTIN_ICON_TOOL_MOK_TOOL), 'S', FALSE);
             }
             break;
       } // switch()
-      if (FileName != NULL) {
-         FreePool(FileName);
-         FileName = NULL;
-      }
+      MyFreePool(FileName);
+      FileName = NULL;
    } // for
 } // static VOID ScanForTools
 
@@ -1560,14 +1945,15 @@ VOID RescanAll(VOID) {
    FreeList((VOID ***) &(MainMenu.Entries), &MainMenu.EntryCount);
    MainMenu.Entries = NULL;
    MainMenu.EntryCount = 0;
-   ReadConfig();
+   ReadConfig(CONFIG_FILE_NAME);
    ConnectAllDriversToAllControllers();
+   ScanVolumes();
    ScanForBootloaders();
    ScanForTools();
    SetupScreen();
 } // VOID RescanAll()
 
-#ifndef __MAKEWITH_GNUEFI
+#ifdef __MAKEWITH_TIANO
 
 // Minimal initialization function
 static VOID InitializeLib(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable) {
@@ -1575,6 +1961,7 @@ static VOID InitializeLib(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *System
    //    gImageHandle   = ImageHandle;
    gBS            = SystemTable->BootServices;
    //    gRS            = SystemTable->RuntimeServices;
+   gRT = SystemTable->RuntimeServices; // Some BDS functions need gRT to be set
    EfiGetSystemConfigurationTable (&gEfiDxeServicesTableGuid, (VOID **) &gDS);
 
    InitializeConsoleSim();
@@ -1582,29 +1969,73 @@ static VOID InitializeLib(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *System
 
 #endif
 
+// Set up our own Secure Boot extensions....
+// Returns TRUE on success, FALSE otherwise
+static BOOLEAN SecureBootSetup(VOID) {
+   EFI_STATUS Status;
+   BOOLEAN    Success = FALSE;
+
+   if (secure_mode() && ShimLoaded()) {
+      Status = security_policy_install();
+      if (Status == EFI_SUCCESS) {
+         Success = TRUE;
+      } else {
+         Print(L"Failed to install MOK Secure Boot extensions");
+      }
+   }
+   return Success;
+} // VOID SecureBootSetup()
+
+// Remove our own Secure Boot extensions....
+// Returns TRUE on success, FALSE otherwise
+static BOOLEAN SecureBootUninstall(VOID) {
+   EFI_STATUS Status;
+   BOOLEAN    Success = TRUE;
+
+   if (secure_mode()) {
+      Status = security_policy_uninstall();
+      if (Status != EFI_SUCCESS) {
+         Success = FALSE;
+         BeginTextScreen(L"Secure Boot Policy Failure");
+         Print(L"Failed to uninstall MOK Secure Boot extensions; forcing a reboot.");
+         PauseForKey();
+         refit_call4_wrapper(RT->ResetSystem, EfiResetCold, EFI_SUCCESS, 0, NULL);
+      }
+   }
+   return Success;
+} // VOID SecureBootUninstall
+
 //
 // main entry point
 //
 EFI_STATUS
 EFIAPI
-efi_main (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)
+efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
 {
     EFI_STATUS         Status;
     BOOLEAN            MainLoopRunning = TRUE;
+    BOOLEAN            MokProtocol;
     REFIT_MENU_ENTRY   *ChosenEntry;
-    UINTN              MenuExit;
+    UINTN              MenuExit, i;
     CHAR16             *Selection;
+    EG_PIXEL           BGColor;
 
     // bootstrap
     InitializeLib(ImageHandle, SystemTable);
-    InitScreen();
     Status = InitRefitLib(ImageHandle);
     if (EFI_ERROR(Status))
         return Status;
 
     // read configuration
-    CopyMem(GlobalConfig.ScanFor, "ieo       ", NUM_SCAN_OPTIONS);
-    ReadConfig();
+    CopyMem(GlobalConfig.ScanFor, "ieom      ", NUM_SCAN_OPTIONS);
+    FindLegacyBootType();
+    if (GlobalConfig.LegacyType == LEGACY_TYPE_MAC)
+       CopyMem(GlobalConfig.ScanFor, "ihebocm   ", NUM_SCAN_OPTIONS);
+    ScanVolumes();
+    ReadConfig(CONFIG_FILE_NAME);
+
+    InitScreen();
+    WarnIfLegacyProblems();
     MainMenu.TimeoutSeconds = GlobalConfig.Timeout;
 
     // disable EFI watchdog timer
@@ -1612,10 +2043,23 @@ efi_main (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)
 
     // further bootstrap (now with config available)
     SetupScreen();
+    MokProtocol = SecureBootSetup();
+//    ScanVolumes();
     LoadDrivers();
     ScanForBootloaders();
     ScanForTools();
 
+    if (GlobalConfig.ScanDelay > 0) {
+       BGColor.b = 255;
+       BGColor.g = 175;
+       BGColor.r = 100;
+       BGColor.a = 0;
+       egDisplayMessage(L"Pausing before disk scan; please wait....", &BGColor);
+       for (i = 0; i < GlobalConfig.ScanDelay; i++)
+          refit_call1_wrapper(BS->Stall, 1000000);
+       RescanAll();
+    } // if
+
     Selection = StrDuplicate(GlobalConfig.DefaultSelection);
     while (MainLoopRunning) {
         MenuExit = RunMainMenu(&MainMenu, Selection, &ChosenEntry);
@@ -1652,18 +2096,28 @@ efi_main (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)
                 StartLegacy((LEGACY_ENTRY *)ChosenEntry);
                 break;
 
+#ifdef __MAKEWITH_TIANO
+            case TAG_LEGACY_UEFI: // Boot a legacy OS on a non-Mac
+                StartLegacyUEFI((LEGACY_ENTRY *)ChosenEntry);
+                break;
+#endif
+
             case TAG_TOOL:     // Start a EFI tool
                 StartTool((LOADER_ENTRY *)ChosenEntry);
                 break;
 
             case TAG_EXIT:    // Terminate rEFInd
-                BeginTextScreen(L" ");
-                return EFI_SUCCESS;
+                if ((MokProtocol) && !SecureBootUninstall()) {
+                   MainLoopRunning = FALSE;   // just in case we get this far
+                } else {
+                   BeginTextScreen(L" ");
+                   return EFI_SUCCESS;
+                }
                 break;
 
         } // switch()
-        FreePool(Selection);
-        Selection = StrDuplicate(ChosenEntry->Title);
+        MyFreePool(Selection);
+        Selection = (ChosenEntry->Title) ? StrDuplicate(ChosenEntry->Title) : NULL;
     } // while()
 
     // If we end up here, things have gone wrong. Try to reboot, and if that