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/** @file
Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <Uefi.h>
#include <PiDxe.h>
#include <Library/TestPointCheckLib.h>
#include <Library/TestPointLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiLib.h>
#include <Library/PrintLib.h>
#include <Library/DevicePathLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Protocol/LoadedImage.h>
#include <Protocol/DevicePath.h>
VOID
TestPointDumpDevicePath (
VOID
)
{
UINTN Index;
EFI_HANDLE *HandleBuf;
UINTN HandleCount;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_STATUS Status;
CHAR16 *Str;
DEBUG ((DEBUG_INFO, "==== TestPointDumpDevicePath - Enter\n"));
HandleBuf = NULL;
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiDevicePathProtocolGuid,
NULL,
&HandleCount,
&HandleBuf
);
if (EFI_ERROR (Status)) {
goto Done ;
}
DEBUG ((DEBUG_INFO, "DeviceList:\n"));
for (Index = 0; Index < HandleCount; Index++) {
Status = gBS->HandleProtocol (
HandleBuf[Index],
&gEfiDevicePathProtocolGuid,
(VOID**)&DevicePath
);
if (EFI_ERROR (Status)) {
continue;
}
Str = ConvertDevicePathToText(DevicePath, TRUE, TRUE);
DEBUG ((DEBUG_INFO, " %s\n", Str));
if (Str != NULL) {
FreePool (Str);
}
}
Done:
if (HandleBuf != NULL) {
FreePool (HandleBuf);
}
DEBUG ((DEBUG_INFO, "==== TestPointDumpDevicePath - Exit\n"));
return ;
}
/**
The DevicePathNode is a single instance.
The DevicePathNodeSize must not include END_DEVICE_PATH.
**/
BOOLEAN
IsDevicePathNodeExist (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePathNode,
IN UINTN DevicePathNodeSize
)
{
UINTN Index;
EFI_HANDLE *HandleBuf;
UINTN HandleCount;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_STATUS Status;
BOOLEAN Result;
UINTN DevicePathSize;
if (DevicePathType (DevicePathNode) == HARDWARE_DEVICE_PATH ||
DevicePathType (DevicePathNode) == ACPI_DEVICE_PATH) {
Result = FALSE;
HandleBuf = NULL;
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiDevicePathProtocolGuid,
NULL,
&HandleCount,
&HandleBuf
);
if (EFI_ERROR (Status)) {
goto Done ;
}
for (Index = 0; Index < HandleCount; Index++) {
Status = gBS->HandleProtocol (
HandleBuf[Index],
&gEfiDevicePathProtocolGuid,
(VOID**)&DevicePath
);
if (EFI_ERROR (Status)) {
continue;
}
DevicePathSize = GetDevicePathSize(DevicePath);
if (DevicePathSize != DevicePathNodeSize + sizeof(EFI_DEVICE_PATH_PROTOCOL)) {
continue;
}
if (CompareMem (DevicePath, DevicePathNode, DevicePathNodeSize) == 0) {
Result = TRUE;
break;
}
}
Done:
if (HandleBuf != NULL) {
FreePool (HandleBuf);
}
return Result;
}
if (DevicePathType (DevicePathNode) == MESSAGING_DEVICE_PATH) {
return TRUE;
}
if (DevicePathType (DevicePathNode) == MEDIA_DEVICE_PATH) {
return TRUE;
}
if (DevicePathType (DevicePathNode) == BBS_DEVICE_PATH) {
return TRUE;
}
return TRUE;
}
/**
The DevicePathTarget might be multiple instance.
The DevicePathTarget must be ended with END_ENTIRE_DEVICE_PATH_SUBTYPE.
**/
BOOLEAN
IsDevicePathExist (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;
EFI_DEVICE_PATH_PROTOCOL *DevicePathNode;
BOOLEAN Result;
TmpDevicePath = DevicePath;
DevicePathNode = DevicePath;
while (!IsDevicePathEnd (TmpDevicePath)) {
if (IsDevicePathEndInstance (TmpDevicePath)) {
//
// DevicePath is a multi-instance device path
//
Result = IsDevicePathNodeExist (DevicePathNode, (UINTN)TmpDevicePath - (UINTN)DevicePathNode);
if (!Result) {
return FALSE;
}
DevicePathNode = NextDevicePathNode (TmpDevicePath);
}
TmpDevicePath = NextDevicePathNode (TmpDevicePath);
}
Result = IsDevicePathNodeExist (DevicePathNode, (UINTN)TmpDevicePath - (UINTN)DevicePathNode);
if (!Result) {
return FALSE;
}
return TRUE;
}
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