+/******************************************************************************
+ * VtoyDrv.c
+ *
+ * Copyright (c) 2020, longpanda <admin@ventoy.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/PrintLib.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/UefiApplicationEntryPoint.h>
+#include <Protocol/LoadedImage.h>
+#include <Guid/FileInfo.h>
+#include <Guid/FileSystemInfo.h>
+#include <Protocol/BlockIo.h>
+#include <Protocol/RamDisk.h>
+#include <Protocol/SimpleFileSystem.h>
+#include <VtoyUtil.h>
+
+STATIC UINTN g_EfiDriverNameCnt = 0;
+STATIC CHAR16 *g_EfiDriverNameList[1024] = { NULL };
+
+STATIC EFI_STATUS AddEfiDriverName(IN CHAR16 *DriverName)
+{
+ UINTN i = 0;
+
+ if (g_EfiDriverNameCnt >= 1024)
+ {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ for (i = 0; i < g_EfiDriverNameCnt; i++)
+ {
+ if (g_EfiDriverNameList[i] && StrCmp(g_EfiDriverNameList[i], DriverName) == 0)
+ {
+ break;
+ }
+ }
+
+ if (i >= g_EfiDriverNameCnt)
+ {
+ g_EfiDriverNameList[g_EfiDriverNameCnt] = DriverName;
+ g_EfiDriverNameCnt++;
+ }
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS ShowEfiDrivers(IN EFI_HANDLE ImageHandle, IN CONST CHAR16 *CmdLine)
+{
+ 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;
+
+ (VOID)ImageHandle;
+ (VOID)CmdLine;
+
+ 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;
+ }
+
+ DriverName = NULL;
+ Status = VtoyGetComponentName(2, Name2Protocol, &DriverName);
+ if ((!EFI_ERROR(Status)) && (DriverName))
+ {
+ AddEfiDriverName(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;
+ }
+
+ DriverName = NULL;
+ Status = VtoyGetComponentName(1, Name2Protocol, &DriverName);
+ if ((!EFI_ERROR(Status)) && (DriverName))
+ {
+ AddEfiDriverName(DriverName);
+ }
+ }
+
+ FreePool(Handles);
+
+ for (i = 0; i < g_EfiDriverNameCnt; i++)
+ {
+ Printf("%2d %s\n", i, g_EfiDriverNameList[i]);
+ }
+
+ return EFI_SUCCESS;
+}
+
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