+
+STATIC BOOLEAN ventoy_filesystem_need_wrapper(IN CONST CHAR16 *DrvName)
+{
+ UINTN i;
+ CHAR16 UpperDrvName[256];
+
+ StrCpyS(UpperDrvName, 256, DrvName);
+
+ for (i = 0; i < 256 && UpperDrvName[i]; i++)
+ {
+ if (UpperDrvName[i] >= 'a' && UpperDrvName[i] <= 'z')
+ {
+ UpperDrvName[i] = 'A' + (UpperDrvName[i] - 'a');
+ }
+ }
+
+ /*
+ * suppress some file system drivers
+ * 1. rEFInd File System Driver
+ *
+ */
+
+ if (StrStr(UpperDrvName, L"REFIND") && StrStr(UpperDrvName, L"FILE SYSTEM"))
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+STATIC VOID ventoy_add_filesystem_wrapper
+(
+ IN EFI_DRIVER_BINDING_PROTOCOL *DriverBindProtocol,
+ IN CONST CHAR16 *DriverName
+)
+{
+ UINTN j;
+
+ if (g_DriverBindWrapperCnt >= MAX_DRIVER_BIND_WRAPPER)
+ {
+ debug("driver binding wrapper overflow %lu", g_DriverBindWrapperCnt);
+ return;
+ }
+
+ if (!ventoy_filesystem_need_wrapper(DriverName))
+ {
+ return;
+ }
+
+ for (j = 0; j < g_DriverBindWrapperCnt; j++)
+ {
+ if (g_DriverBindWrapperList[j].DriverBinding == DriverBindProtocol)
+ {
+ debug("Duplicate driverbinding <%s> %p %lu %lu", DriverName, DriverBindProtocol, j, g_DriverBindWrapperCnt);
+ break;
+ }
+ }
+
+ if (j >= g_DriverBindWrapperCnt)
+ {
+ g_DriverBindWrapperList[g_DriverBindWrapperCnt].DriverBinding = DriverBindProtocol;
+ g_DriverBindWrapperList[g_DriverBindWrapperCnt].pfOldSupport = DriverBindProtocol->Supported;
+ g_DriverBindWrapperCnt++;
+ debug("Add driverbinding <%s> %p %lu", DriverName, DriverBindProtocol, g_DriverBindWrapperCnt);
+ }
+}
+
+STATIC EFI_STATUS ventoy_find_filesystem_driverbind(VOID)
+{
+ UINTN i = 0;
+ UINTN Count = 0;
+ CHAR16 *DriverName = NULL;
+ EFI_HANDLE *Handles = NULL;
+ EFI_STATUS Status = EFI_SUCCESS;
+ EFI_COMPONENT_NAME_PROTOCOL *NameProtocol = NULL;
+ EFI_COMPONENT_NAME2_PROTOCOL *Name2Protocol = NULL;
+ EFI_DRIVER_BINDING_PROTOCOL *DriverBindProtocol = NULL;
+
+ debug("ventoy_find_filesystem_driverbind...");
+
+ Status = gBS->LocateHandleBuffer(ByProtocol, &gEfiComponentName2ProtocolGuid,
+ NULL, &Count, &Handles);
+ if (EFI_ERROR(Status))
+ {
+ return Status;
+ }
+
+ for (i = 0; i < Count; i++)
+ {
+ Status = gBS->HandleProtocol(Handles[i], &gEfiComponentName2ProtocolGuid, (VOID **)&Name2Protocol);
+ if (EFI_ERROR(Status))
+ {
+ continue;
+ }
+
+ VENTOY_GET_COMPONENT_NAME(Name2Protocol, DriverName);
+
+ Status = gBS->HandleProtocol(Handles[i], &gEfiDriverBindingProtocolGuid, (VOID **)&DriverBindProtocol);
+ if (EFI_ERROR(Status))
+ {
+ debug("### 2 No DriverBind <%s> <%r>", DriverName, Status);
+ continue;
+ }
+
+ ventoy_add_filesystem_wrapper(DriverBindProtocol, DriverName);
+ }
+
+ Count = 0;
+ FreePool(Handles);
+ Handles = NULL;
+
+ Status = gBS->LocateHandleBuffer(ByProtocol, &gEfiComponentNameProtocolGuid,
+ NULL, &Count, &Handles);
+ if (EFI_ERROR(Status))
+ {
+ return Status;
+ }
+
+ for (i = 0; i < Count; i++)
+ {
+ Status = gBS->HandleProtocol(Handles[i], &gEfiComponentNameProtocolGuid, (VOID **)&NameProtocol);
+ if (EFI_ERROR(Status))
+ {
+ continue;
+ }
+
+ VENTOY_GET_COMPONENT_NAME(NameProtocol, DriverName);
+
+ Status = gBS->HandleProtocol(Handles[i], &gEfiDriverBindingProtocolGuid, (VOID **)&DriverBindProtocol);
+ if (EFI_ERROR(Status))
+ {
+ debug("### 1 No DriverBind <%s> <%r>", DriverName, Status);
+ continue;
+ }
+
+ ventoy_add_filesystem_wrapper(DriverBindProtocol, DriverName);
+ }
+
+ FreePool(Handles);
+
+ return EFI_SUCCESS;
+}
+
+STATIC EFI_STATUS EFIAPI ventoy_wrapper_driver_bind_support
+(
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
+)
+{
+ UINTN i;
+ EFI_STATUS Status = EFI_SUCCESS;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath = NULL;
+ EFI_DRIVER_BINDING_SUPPORTED pfOldSupport = NULL;
+
+ for (i = 0; i < g_DriverBindWrapperCnt; i++)
+ {
+ if (g_DriverBindWrapperList[i].DriverBinding == This)
+ {
+ pfOldSupport = g_DriverBindWrapperList[i].pfOldSupport;
+ break;
+ }
+ }
+
+ debug("ventoy_wrapper_driver_bind_support %lu %p", i, pfOldSupport);
+
+ if (!pfOldSupport)
+ {
+ return EFI_UNSUPPORTED;
+ }
+
+ Status = gBS->HandleProtocol(ControllerHandle, &gEfiDevicePathProtocolGuid, (VOID **)&DevicePath);
+ if (EFI_ERROR(Status))
+ {
+ goto out;
+ }
+
+ if (0 == CompareMem(gBlockData.Path, DevicePath, gBlockData.DevicePathCompareLen))
+ {
+ debug("return EFI_UNSUPPORTED for ventoy");
+ return EFI_UNSUPPORTED;
+ }
+
+out:
+ return pfOldSupport(This, ControllerHandle, RemainingDevicePath);
+}
+
+EFI_STATUS ventoy_disable_ex_filesystem(VOID)
+{
+ UINTN i;
+
+ ventoy_find_filesystem_driverbind();
+
+ for (i = 0; i < g_DriverBindWrapperCnt; i++)
+ {
+ g_DriverBindWrapperList[i].DriverBinding->Supported = ventoy_wrapper_driver_bind_support;
+ }
+
+ debug("Wrapper Ex Driver Binding %lu", g_DriverBindWrapperCnt);
+ ventoy_debug_pause();
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS ventoy_enable_ex_filesystem(VOID)
+{
+ UINTN i;
+
+ for (i = 0; i < g_DriverBindWrapperCnt; i++)
+ {
+ g_DriverBindWrapperList[i].DriverBinding->Supported = g_DriverBindWrapperList[i].pfOldSupport;
+ }
+ g_DriverBindWrapperCnt = 0;
+
+ return EFI_SUCCESS;
+}
+
projects / Ventoy.git / blobdiff