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audk/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c

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/** @file
Provides interface to advanced shell functionality for parsing both handle and protocol database.
Copyright (c) 2013 - 2014, Hewlett-Packard Development Company, L.P.
Copyright (c) 2010 - 2014, 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
which 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 "UefiHandleParsingLib.h"
#include "IndustryStandard/Acpi10.h"
EFI_HANDLE mHandleParsingHiiHandle;
HANDLE_INDEX_LIST mHandleList = {{{NULL,NULL},0,0},0};
/**
Function to translate the EFI_MEMORY_TYPE into a string.
@param[in] Memory The memory type.
@retval A string representation of the type allocated from BS Pool.
**/
CHAR16*
EFIAPI
ConvertMemoryType (
IN CONST EFI_MEMORY_TYPE Memory
)
{
CHAR16 *RetVal;
RetVal = NULL;
switch (Memory) {
case EfiReservedMemoryType: StrnCatGrow(&RetVal, NULL, L"EfiReservedMemoryType", 0); break;
case EfiLoaderCode: StrnCatGrow(&RetVal, NULL, L"EfiLoaderCode", 0); break;
case EfiLoaderData: StrnCatGrow(&RetVal, NULL, L"EfiLoaderData", 0); break;
case EfiBootServicesCode: StrnCatGrow(&RetVal, NULL, L"EfiBootServicesCode", 0); break;
case EfiBootServicesData: StrnCatGrow(&RetVal, NULL, L"EfiBootServicesData", 0); break;
case EfiRuntimeServicesCode: StrnCatGrow(&RetVal, NULL, L"EfiRuntimeServicesCode", 0); break;
case EfiRuntimeServicesData: StrnCatGrow(&RetVal, NULL, L"EfiRuntimeServicesData", 0); break;
case EfiConventionalMemory: StrnCatGrow(&RetVal, NULL, L"EfiConventionalMemory", 0); break;
case EfiUnusableMemory: StrnCatGrow(&RetVal, NULL, L"EfiUnusableMemory", 0); break;
case EfiACPIReclaimMemory: StrnCatGrow(&RetVal, NULL, L"EfiACPIReclaimMemory", 0); break;
case EfiACPIMemoryNVS: StrnCatGrow(&RetVal, NULL, L"EfiACPIMemoryNVS", 0); break;
case EfiMemoryMappedIO: StrnCatGrow(&RetVal, NULL, L"EfiMemoryMappedIO", 0); break;
case EfiMemoryMappedIOPortSpace: StrnCatGrow(&RetVal, NULL, L"EfiMemoryMappedIOPortSpace", 0); break;
case EfiPalCode: StrnCatGrow(&RetVal, NULL, L"EfiPalCode", 0); break;
case EfiMaxMemoryType: StrnCatGrow(&RetVal, NULL, L"EfiMaxMemoryType", 0); break;
default: ASSERT(FALSE);
}
return (RetVal);
}
/**
Function to translate the EFI_GRAPHICS_PIXEL_FORMAT into a string.
@param[in] Memory The format type.
@retval A string representation of the type allocated from BS Pool.
**/
CHAR16*
EFIAPI
ConvertPixelFormat (
IN CONST EFI_GRAPHICS_PIXEL_FORMAT Fmt
)
{
CHAR16 *RetVal;
RetVal = NULL;
switch (Fmt) {
case PixelRedGreenBlueReserved8BitPerColor: StrnCatGrow(&RetVal, NULL, L"PixelRedGreenBlueReserved8BitPerColor", 0); break;
case PixelBlueGreenRedReserved8BitPerColor: StrnCatGrow(&RetVal, NULL, L"PixelBlueGreenRedReserved8BitPerColor", 0); break;
case PixelBitMask: StrnCatGrow(&RetVal, NULL, L"PixelBitMask", 0); break;
case PixelBltOnly: StrnCatGrow(&RetVal, NULL, L"PixelBltOnly", 0); break;
case PixelFormatMax: StrnCatGrow(&RetVal, NULL, L"PixelFormatMax", 0); break;
default: ASSERT(FALSE);
}
return (RetVal);
}
/**
Constructor for the library.
@param[in] ImageHandle Ignored.
@param[in] SystemTable Ignored.
@retval EFI_SUCCESS The operation was successful.
**/
EFI_STATUS
EFIAPI
HandleParsingLibConstructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
mHandleParsingHiiHandle = HiiAddPackages (&gHandleParsingHiiGuid, gImageHandle, UefiHandleParsingLibStrings, NULL);
if (mHandleParsingHiiHandle == NULL) {
return (EFI_DEVICE_ERROR);
}
return (EFI_SUCCESS);
}
/**
Destructor for the library. free any resources.
@param[in] ImageHandle Ignored.
@param[in] SystemTable Ignored.
@retval EFI_SUCCESS The operation was successful.
**/
EFI_STATUS
EFIAPI
HandleParsingLibDestructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
if (mHandleParsingHiiHandle != NULL) {
HiiRemovePackages(mHandleParsingHiiHandle);
}
return (EFI_SUCCESS);
}
/**
Function to dump information about LoadedImage.
This will allocate the return buffer from boot services pool.
@param[in] TheHandle The handle that has LoadedImage installed.
@param[in] Verbose TRUE for additional information, FALSE otherwise.
@retval A poitner to a string containing the information.
**/
CHAR16*
EFIAPI
LoadedImageProtocolDumpInformation(
IN CONST EFI_HANDLE TheHandle,
IN CONST BOOLEAN Verbose
)
{
EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
EFI_STATUS Status;
CHAR16 *RetVal;
CHAR16 *Temp;
CHAR16 *CodeType;
CHAR16 *DataType;
if (!Verbose) {
return (CatSPrint(NULL, L"LoadedImage"));
}
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_LI_DUMP_MAIN), NULL);
RetVal = AllocateZeroPool (PcdGet16 (PcdShellPrintBufferSize));
if (Temp == NULL || RetVal == NULL) {
SHELL_FREE_NON_NULL(Temp);
SHELL_FREE_NON_NULL(RetVal);
return NULL;
}
Status = gBS->OpenProtocol (
TheHandle,
&gEfiLoadedImageProtocolGuid,
(VOID**)&LoadedImage,
gImageHandle,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
SHELL_FREE_NON_NULL (Temp);
SHELL_FREE_NON_NULL (RetVal);
return NULL;
}
DataType = ConvertMemoryType(LoadedImage->ImageDataType);
CodeType = ConvertMemoryType(LoadedImage->ImageCodeType);
RetVal = CatSPrint(RetVal,
Temp,
LoadedImage->Revision,
LoadedImage->ParentHandle,
LoadedImage->SystemTable,
LoadedImage->DeviceHandle,
LoadedImage->FilePath,
LoadedImage->LoadOptionsSize,
LoadedImage->LoadOptions,
LoadedImage->ImageBase,
LoadedImage->ImageSize,
CodeType,
DataType,
LoadedImage->Unload);
SHELL_FREE_NON_NULL(Temp);
SHELL_FREE_NON_NULL(CodeType);
SHELL_FREE_NON_NULL(DataType);
return RetVal;
}
/**
Function to dump information about GOP.
This will allocate the return buffer from boot services pool.
@param[in] TheHandle The handle that has LoadedImage installed.
@param[in] Verbose TRUE for additional information, FALSE otherwise.
@retval A poitner to a string containing the information.
**/
CHAR16*
EFIAPI
GraphicsOutputProtocolDumpInformation(
IN CONST EFI_HANDLE TheHandle,
IN CONST BOOLEAN Verbose
)
{
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_STATUS Status;
CHAR16 *RetVal;
CHAR16 *Temp;
CHAR16 *Fmt;
if (!Verbose) {
return (CatSPrint(NULL, L"GraphicsOutput"));
}
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_GOP_DUMP_MAIN), NULL);
RetVal = AllocateZeroPool (PcdGet16 (PcdShellPrintBufferSize));
if (Temp == NULL || RetVal == NULL) {
SHELL_FREE_NON_NULL(Temp);
SHELL_FREE_NON_NULL(RetVal);
return NULL;
}
Status = gBS->OpenProtocol (
TheHandle,
&gEfiGraphicsOutputProtocolGuid,
(VOID**)&GraphicsOutput,
gImageHandle,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
SHELL_FREE_NON_NULL (Temp);
SHELL_FREE_NON_NULL (RetVal);
return NULL;
}
Fmt = ConvertPixelFormat(GraphicsOutput->Mode->Info->PixelFormat);
RetVal = CatSPrint(RetVal,
Temp,
GraphicsOutput->Mode->MaxMode,
GraphicsOutput->Mode->Mode,
GraphicsOutput->Mode->FrameBufferBase,
(UINT64)GraphicsOutput->Mode->FrameBufferSize,
(UINT64)GraphicsOutput->Mode->SizeOfInfo,
GraphicsOutput->Mode->Info->Version,
GraphicsOutput->Mode->Info->HorizontalResolution,
GraphicsOutput->Mode->Info->VerticalResolution,
Fmt,
GraphicsOutput->Mode->Info->PixelsPerScanLine,
GraphicsOutput->Mode->Info->PixelFormat!=PixelBitMask?0:GraphicsOutput->Mode->Info->PixelInformation.RedMask,
GraphicsOutput->Mode->Info->PixelFormat!=PixelBitMask?0:GraphicsOutput->Mode->Info->PixelInformation.GreenMask,
GraphicsOutput->Mode->Info->PixelFormat!=PixelBitMask?0:GraphicsOutput->Mode->Info->PixelInformation.BlueMask
);
SHELL_FREE_NON_NULL(Temp);
SHELL_FREE_NON_NULL(Fmt);
return RetVal;
}
/**
Function to dump information about PciRootBridgeIo.
This will allocate the return buffer from boot services pool.
@param[in] TheHandle The handle that has PciRootBridgeIo installed.
@param[in] Verbose TRUE for additional information, FALSE otherwise.
@retval A poitner to a string containing the information.
**/
CHAR16*
EFIAPI
PciRootBridgeIoDumpInformation(
IN CONST EFI_HANDLE TheHandle,
IN CONST BOOLEAN Verbose
)
{
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Configuration;
UINT64 Supports;
UINT64 Attributes;
CHAR16 *Temp;
CHAR16 *Temp2;
CHAR16 *RetVal;
EFI_STATUS Status;
RetVal = NULL;
if (!Verbose) {
return (CatSPrint(NULL, L"PciRootBridgeIo"));
}
Status = gBS->HandleProtocol(
TheHandle,
&gEfiPciRootBridgeIoProtocolGuid,
(VOID**)&PciRootBridgeIo);
if (EFI_ERROR(Status)) {
return NULL;
}
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_PCIRB_DUMP_PH), NULL);
ASSERT (Temp != NULL);
Temp2 = CatSPrint(L"\r\n", Temp, PciRootBridgeIo->ParentHandle);
FreePool(Temp);
RetVal = Temp2;
Temp2 = NULL;
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_PCIRB_DUMP_SEG), NULL);
ASSERT (Temp != NULL);
Temp2 = CatSPrint(RetVal, Temp, PciRootBridgeIo->SegmentNumber);
FreePool(Temp);
FreePool(RetVal);
RetVal = Temp2;
Temp2 = NULL;
Supports = 0;
Attributes = 0;
Status = PciRootBridgeIo->GetAttributes (PciRootBridgeIo, &Supports, &Attributes);
if (!EFI_ERROR(Status)) {
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_PCIRB_DUMP_ATT), NULL);
ASSERT (Temp != NULL);
Temp2 = CatSPrint(RetVal, Temp, Attributes);
FreePool(Temp);
FreePool(RetVal);
RetVal = Temp2;
Temp2 = NULL;
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_PCIRB_DUMP_SUPPORTS), NULL);
ASSERT (Temp != NULL);
Temp2 = CatSPrint(RetVal, Temp, Supports);
FreePool(Temp);
FreePool(RetVal);
RetVal = Temp2;
Temp2 = NULL;
}
Configuration = NULL;
Status = PciRootBridgeIo->Configuration (PciRootBridgeIo, (VOID **) &Configuration);
if (!EFI_ERROR(Status) && Configuration != NULL) {
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_PCIRB_DUMP_TITLE), NULL);
ASSERT (Temp != NULL);
Temp2 = CatSPrint(RetVal, Temp, Supports);
FreePool(Temp);
FreePool(RetVal);
RetVal = Temp2;
Temp2 = NULL;
while (Configuration->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) {
Temp = NULL;
switch (Configuration->ResType) {
case ACPI_ADDRESS_SPACE_TYPE_MEM:
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_PCIRB_DUMP_MEM), NULL);
break;
case ACPI_ADDRESS_SPACE_TYPE_IO:
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_PCIRB_DUMP_IO), NULL);
break;
case ACPI_ADDRESS_SPACE_TYPE_BUS:
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_PCIRB_DUMP_BUS), NULL);
break;
}
if (Temp != NULL) {
Temp2 = CatSPrint(RetVal, L"%s", Temp);
FreePool(Temp);
FreePool(RetVal);
RetVal = Temp2;
Temp2 = NULL;
}
Temp2 = CatSPrint(RetVal,
L"%H%02x %016lx %016lx %02x%N\r\n",
Configuration->SpecificFlag,
Configuration->AddrRangeMin,
Configuration->AddrRangeMax,
Configuration->AddrSpaceGranularity
);
FreePool(RetVal);
RetVal = Temp2;
Temp2 = NULL;
Configuration++;
}
}
return (RetVal);
}
/**
Function to dump information about SimpleTextOut.
This will allocate the return buffer from boot services pool.
@param[in] TheHandle The handle that has SimpleTextOut installed.
@param[in] Verbose TRUE for additional information, FALSE otherwise.
@retval A poitner to a string containing the information.
**/
CHAR16*
EFIAPI
TxtOutProtocolDumpInformation(
IN CONST EFI_HANDLE TheHandle,
IN CONST BOOLEAN Verbose
)
{
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Dev;
INTN Index;
UINTN Col;
UINTN Row;
EFI_STATUS Status;
CHAR16 *RetVal;
UINTN Size;
CHAR16 *Temp;
UINTN NewSize;
if (!Verbose) {
return (NULL);
}
RetVal = NULL;
Size = 0;
Status = gBS->HandleProtocol(
TheHandle,
&gEfiSimpleTextOutProtocolGuid,
(VOID**)&Dev);
ASSERT_EFI_ERROR(Status);
ASSERT (Dev != NULL && Dev->Mode != NULL);
Size = (Dev->Mode->MaxMode + 1) * 80;
RetVal = AllocateZeroPool(Size);
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_TXT_OUT_DUMP_HEADER), NULL);
if (Temp != NULL) {
UnicodeSPrint(RetVal, Size, Temp, Dev, Dev->Mode->Attribute);
FreePool(Temp);
}
//
// Dump TextOut Info
//
Temp = HiiGetString(mHandleParsingHiiHandle, STRING_TOKEN(STR_TXT_OUT_DUMP_LINE), NULL);
for (Index = 0; Index < Dev->Mode->MaxMode; Index++) {
Status = Dev->QueryMode (Dev, Index, &Col, &Row);
NewSize = Size - StrSize(RetVal);
UnicodeSPrint(
RetVal + StrLen(RetVal),
NewSize,
Temp == NULL?L"":Temp,
Index == Dev->Mode->Mode ? L'*' : L' ',
Index,
!EFI_ERROR(Status)?(INTN)Col:-1,
!EFI_ERROR(Status)?(INTN)Row:-1
);
}
FreePool(Temp);
return (RetVal);
}
STATIC CONST UINTN VersionStringSize = 60;
/**
Function to dump information about EfiDriverSupportedEfiVersion protocol.
This will allocate the return buffer from boot services pool.
@param[in] TheHandle The handle that has the protocol installed.
@param[in] Verbose TRUE for additional information, FALSE otherwise.
@retval A poitner to a string containing the information.
**/
CHAR16*
EFIAPI
DriverEfiVersionProtocolDumpInformation(
IN CONST EFI_HANDLE TheHandle,
IN CONST BOOLEAN Verbose
)
{
EFI_DRIVER_SUPPORTED_EFI_VERSION_PROTOCOL *DriverEfiVersion;
EFI_STATUS Status;
CHAR16 *RetVal;
Status = gBS->HandleProtocol(
TheHandle,
&gEfiDriverSupportedEfiVersionProtocolGuid,
(VOID**)&DriverEfiVersion);
ASSERT_EFI_ERROR(Status);
RetVal = AllocateZeroPool(VersionStringSize);
ASSERT(RetVal != NULL);
UnicodeSPrint(RetVal, VersionStringSize, L"0x%08x", DriverEfiVersion->FirmwareVersion);
return (RetVal);
}
/**
Function to dump information about DevicePath protocol.
This will allocate the return buffer from boot services pool.
@param[in] TheHandle The handle that has the protocol installed.
@param[in] Verbose TRUE for additional information, FALSE otherwise.
@retval A poitner to a string containing the information.
**/
CHAR16*
EFIAPI
DevicePathProtocolDumpInformation(
IN CONST EFI_HANDLE TheHandle,
IN CONST BOOLEAN Verbose
)
{
EFI_DEVICE_PATH_PROTOCOL *DevPath;
CHAR16 *Temp;
CHAR16 *Temp2;
EFI_STATUS Status;
Temp = NULL;
Status = gBS->OpenProtocol(TheHandle, &gEfiDevicePathProtocolGuid, (VOID**)&DevPath, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (!EFI_ERROR(Status)) {
//
// I cannot decide whether to allow shortcuts here (the second BOOLEAN on the next line)
//
Temp = ConvertDevicePathToText(DevPath, TRUE, TRUE);
gBS->CloseProtocol(TheHandle, &gEfiDevicePathProtocolGuid, gImageHandle, NULL);
}
if (!Verbose && Temp != NULL && StrLen(Temp) > 30) {
Temp2 = NULL;
Temp2 = StrnCatGrow(&Temp2, NULL, Temp+(StrLen(Temp) - 30), 30);
FreePool(Temp);
Temp = Temp2;
}
return (Temp);
}
//
// Put the information on the NT32 protocol GUIDs here so we are not dependant on the Nt32Pkg
//
#define LOCAL_EFI_WIN_NT_THUNK_PROTOCOL_GUID \
{ \
0x58c518b1, 0x76f3, 0x11d4, { 0xbc, 0xea, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } \
}
#define LOCAL_EFI_WIN_NT_BUS_DRIVER_IO_PROTOCOL_GUID \
{ \
0x96eb4ad6, 0xa32a, 0x11d4, { 0xbc, 0xfd, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } \
}
#define LOCAL_EFI_WIN_NT_SERIAL_PORT_GUID \
{ \
0xc95a93d, 0xa006, 0x11d4, { 0xbc, 0xfa, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } \
}
STATIC CONST EFI_GUID WinNtThunkProtocolGuid = LOCAL_EFI_WIN_NT_THUNK_PROTOCOL_GUID;
STATIC CONST EFI_GUID WinNtIoProtocolGuid = LOCAL_EFI_WIN_NT_BUS_DRIVER_IO_PROTOCOL_GUID;
STATIC CONST EFI_GUID WinNtSerialPortGuid = LOCAL_EFI_WIN_NT_SERIAL_PORT_GUID;
STATIC CONST GUID_INFO_BLOCK mGuidStringListNT[] = {
{STRING_TOKEN(STR_WINNT_THUNK), (EFI_GUID*)&WinNtThunkProtocolGuid, NULL},
{STRING_TOKEN(STR_WINNT_DRIVER_IO), (EFI_GUID*)&WinNtIoProtocolGuid, NULL},
{STRING_TOKEN(STR_WINNT_SERIAL_PORT), (EFI_GUID*)&WinNtSerialPortGuid, NULL},
{STRING_TOKEN(STR_UNKNOWN_DEVICE), NULL, NULL},
};
STATIC CONST GUID_INFO_BLOCK mGuidStringList[] = {
{STRING_TOKEN(STR_LOADED_IMAGE), &gEfiLoadedImageProtocolGuid, LoadedImageProtocolDumpInformation},
{STRING_TOKEN(STR_DEVICE_PATH), &gEfiDevicePathProtocolGuid, DevicePathProtocolDumpInformation},
{STRING_TOKEN(STR_IMAGE_PATH), &gEfiLoadedImageDevicePathProtocolGuid, DevicePathProtocolDumpInformation},
{STRING_TOKEN(STR_DEVICE_PATH_UTIL), &gEfiDevicePathUtilitiesProtocolGuid, NULL},
{STRING_TOKEN(STR_DEVICE_PATH_TXT), &gEfiDevicePathToTextProtocolGuid, NULL},
{STRING_TOKEN(STR_DEVICE_PATH_FTXT), &gEfiDevicePathFromTextProtocolGuid, NULL},
{STRING_TOKEN(STR_DEVICE_PATH_PC), &gEfiPcAnsiGuid, NULL},
{STRING_TOKEN(STR_DEVICE_PATH_VT100), &gEfiVT100Guid, NULL},
{STRING_TOKEN(STR_DEVICE_PATH_VT100P), &gEfiVT100PlusGuid, NULL},
{STRING_TOKEN(STR_DEVICE_PATH_VTUTF8), &gEfiVTUTF8Guid, NULL},
{STRING_TOKEN(STR_DRIVER_BINDING), &gEfiDriverBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_PLATFORM_OVERRIDE), &gEfiPlatformDriverOverrideProtocolGuid, NULL},
{STRING_TOKEN(STR_BUS_OVERRIDE), &gEfiBusSpecificDriverOverrideProtocolGuid, NULL},
{STRING_TOKEN(STR_DRIVER_DIAG), &gEfiDriverDiagnosticsProtocolGuid, NULL},
{STRING_TOKEN(STR_DRIVER_DIAG2), &gEfiDriverDiagnostics2ProtocolGuid, NULL},
{STRING_TOKEN(STR_DRIVER_CN), &gEfiComponentNameProtocolGuid, NULL},
{STRING_TOKEN(STR_DRIVER_CN2), &gEfiComponentName2ProtocolGuid, NULL},
{STRING_TOKEN(STR_PLAT_DRV_CFG), &gEfiPlatformToDriverConfigurationProtocolGuid, NULL},
{STRING_TOKEN(STR_DRIVER_VERSION), &gEfiDriverSupportedEfiVersionProtocolGuid, DriverEfiVersionProtocolDumpInformation},
{STRING_TOKEN(STR_TXT_IN), &gEfiSimpleTextInProtocolGuid, NULL},
{STRING_TOKEN(STR_TXT_IN_EX), &gEfiSimpleTextInputExProtocolGuid, NULL},
{STRING_TOKEN(STR_TXT_OUT), &gEfiSimpleTextOutProtocolGuid, TxtOutProtocolDumpInformation},
{STRING_TOKEN(STR_SIM_POINTER), &gEfiSimplePointerProtocolGuid, NULL},
{STRING_TOKEN(STR_ABS_POINTER), &gEfiAbsolutePointerProtocolGuid, NULL},
{STRING_TOKEN(STR_SERIAL_IO), &gEfiSerialIoProtocolGuid, NULL},
{STRING_TOKEN(STR_GRAPHICS_OUTPUT), &gEfiGraphicsOutputProtocolGuid, GraphicsOutputProtocolDumpInformation},
{STRING_TOKEN(STR_EDID_DISCOVERED), &gEfiEdidDiscoveredProtocolGuid, NULL},
{STRING_TOKEN(STR_EDID_ACTIVE), &gEfiEdidActiveProtocolGuid, NULL},
{STRING_TOKEN(STR_EDID_OVERRIDE), &gEfiEdidOverrideProtocolGuid, NULL},
{STRING_TOKEN(STR_CON_IN), &gEfiConsoleInDeviceGuid, NULL},
{STRING_TOKEN(STR_CON_OUT), &gEfiConsoleOutDeviceGuid, NULL},
{STRING_TOKEN(STR_STD_ERR), &gEfiStandardErrorDeviceGuid, NULL},
{STRING_TOKEN(STR_LOAD_FILE), &gEfiLoadFileProtocolGuid, NULL},
{STRING_TOKEN(STR_LOAD_FILE2), &gEfiLoadFile2ProtocolGuid, NULL},
{STRING_TOKEN(STR_SIMPLE_FILE_SYS), &gEfiSimpleFileSystemProtocolGuid, NULL},
{STRING_TOKEN(STR_TAPE_IO), &gEfiTapeIoProtocolGuid, NULL},
{STRING_TOKEN(STR_DISK_IO), &gEfiDiskIoProtocolGuid, NULL},
{STRING_TOKEN(STR_BLK_IO), &gEfiBlockIoProtocolGuid, NULL},
{STRING_TOKEN(STR_UC), &gEfiUnicodeCollationProtocolGuid, NULL},
{STRING_TOKEN(STR_UC2), &gEfiUnicodeCollation2ProtocolGuid, NULL},
{STRING_TOKEN(STR_PCIRB_IO), &gEfiPciRootBridgeIoProtocolGuid, PciRootBridgeIoDumpInformation},
{STRING_TOKEN(STR_PCI_IO), &gEfiPciIoProtocolGuid, NULL},
{STRING_TOKEN(STR_SCSI_PT), &gEfiScsiPassThruProtocolGuid, NULL},
{STRING_TOKEN(STR_SCSI_IO), &gEfiScsiIoProtocolGuid, NULL},
{STRING_TOKEN(STR_SCSI_PT_EXT), &gEfiExtScsiPassThruProtocolGuid, NULL},
{STRING_TOKEN(STR_ISCSI), &gEfiIScsiInitiatorNameProtocolGuid, NULL},
{STRING_TOKEN(STR_USB_IO), &gEfiUsbIoProtocolGuid, NULL},
{STRING_TOKEN(STR_USB_HC), &gEfiUsbHcProtocolGuid, NULL},
{STRING_TOKEN(STR_USB_HC2), &gEfiUsb2HcProtocolGuid, NULL},
{STRING_TOKEN(STR_DEBUG_SUPPORT), &gEfiDebugSupportProtocolGuid, NULL},
{STRING_TOKEN(STR_DEBUG_PORT), &gEfiDebugPortProtocolGuid, NULL},
{STRING_TOKEN(STR_DECOMPRESS), &gEfiDecompressProtocolGuid, NULL},
{STRING_TOKEN(STR_ACPI_TABLE), &gEfiAcpiTableProtocolGuid, NULL},
{STRING_TOKEN(STR_EBC_INTERPRETER), &gEfiEbcProtocolGuid, NULL},
{STRING_TOKEN(STR_SNP), &gEfiSimpleNetworkProtocolGuid, NULL},
{STRING_TOKEN(STR_NII), &gEfiNetworkInterfaceIdentifierProtocolGuid, NULL},
{STRING_TOKEN(STR_NII_31), &gEfiNetworkInterfaceIdentifierProtocolGuid_31, NULL},
{STRING_TOKEN(STR_PXE_BC), &gEfiPxeBaseCodeProtocolGuid, NULL},
{STRING_TOKEN(STR_PXE_CB), &gEfiPxeBaseCodeCallbackProtocolGuid, NULL},
{STRING_TOKEN(STR_BIS), &gEfiBisProtocolGuid, NULL},
{STRING_TOKEN(STR_MNP_SB), &gEfiManagedNetworkServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_MNP), &gEfiManagedNetworkProtocolGuid, NULL},
{STRING_TOKEN(STR_ARP_SB), &gEfiArpServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_ARP), &gEfiArpProtocolGuid, NULL},
{STRING_TOKEN(STR_DHCPV4_SB), &gEfiDhcp4ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_DHCPV4), &gEfiDhcp4ProtocolGuid, NULL},
{STRING_TOKEN(STR_TCPV4_SB), &gEfiTcp4ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_TCPV4), &gEfiTcp4ProtocolGuid, NULL},
{STRING_TOKEN(STR_IPV4_SB), &gEfiIp4ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_IPV4), &gEfiIp4ProtocolGuid, NULL},
{STRING_TOKEN(STR_IPV4_CFG), &gEfiIp4ConfigProtocolGuid, NULL},
{STRING_TOKEN(STR_SHELL_PARAMETERS), &gEfiShellParametersProtocolGuid, NULL},
{STRING_TOKEN(STR_SHELL), &gEfiShellProtocolGuid, NULL},
{STRING_TOKEN(STR_UDPV4_SB), &gEfiUdp4ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_UDPV4), &gEfiUdp4ProtocolGuid, NULL},
{STRING_TOKEN(STR_MTFTPV4_SB), &gEfiMtftp4ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_MTFTPV4), &gEfiMtftp4ProtocolGuid, NULL},
{STRING_TOKEN(STR_AUTH_INFO), &gEfiAuthenticationInfoProtocolGuid, NULL},
{STRING_TOKEN(STR_HASH_SB), &gEfiHashServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_HASH), &gEfiHashProtocolGuid, NULL},
{STRING_TOKEN(STR_HII_FONT), &gEfiHiiFontProtocolGuid, NULL},
{STRING_TOKEN(STR_HII_STRING), &gEfiHiiStringProtocolGuid, NULL},
{STRING_TOKEN(STR_HII_IMAGE), &gEfiHiiImageProtocolGuid, NULL},
{STRING_TOKEN(STR_HII_DATABASE), &gEfiHiiDatabaseProtocolGuid, NULL},
{STRING_TOKEN(STR_HII_CONFIG_ROUT), &gEfiHiiConfigRoutingProtocolGuid, NULL},
{STRING_TOKEN(STR_HII_CONFIG_ACC), &gEfiHiiConfigAccessProtocolGuid, NULL},
{STRING_TOKEN(STR_HII_FORM_BROWSER2), &gEfiFormBrowser2ProtocolGuid, NULL},
{STRING_TOKEN(STR_DRIVER_FAM_OVERRIDE), &gEfiDriverFamilyOverrideProtocolGuid, NULL},
{STRING_TOKEN(STR_PCD), &gPcdProtocolGuid, NULL},
{STRING_TOKEN(STR_TCG), &gEfiTcgProtocolGuid, NULL},
{STRING_TOKEN(STR_HII_PACKAGE_LIST), &gEfiHiiPackageListProtocolGuid, NULL},
//
// the ones under this are deprecated by the current UEFI Spec, but may be found anyways...
//
{STRING_TOKEN(STR_SHELL_INTERFACE), &gEfiShellInterfaceGuid, NULL},
{STRING_TOKEN(STR_SHELL_ENV2), &gEfiShellEnvironment2Guid, NULL},
{STRING_TOKEN(STR_SHELL_ENV), &gEfiShellEnvironment2Guid, NULL},
{STRING_TOKEN(STR_DEVICE_IO), &gEfiDeviceIoProtocolGuid, NULL},
{STRING_TOKEN(STR_UGA_DRAW), &gEfiUgaDrawProtocolGuid, NULL},
{STRING_TOKEN(STR_UGA_IO), &gEfiUgaIoProtocolGuid, NULL},
{STRING_TOKEN(STR_ESP), &gEfiPartTypeSystemPartGuid, NULL},
{STRING_TOKEN(STR_GPT_NBR), &gEfiPartTypeLegacyMbrGuid, NULL},
{STRING_TOKEN(STR_DRIVER_CONFIG), &gEfiDriverConfigurationProtocolGuid, NULL},
{STRING_TOKEN(STR_DRIVER_CONFIG2), &gEfiDriverConfiguration2ProtocolGuid, NULL},
//
// the ones under this are GUID identified structs, not protocols
//
{STRING_TOKEN(STR_FILE_INFO), &gEfiFileInfoGuid, NULL},
{STRING_TOKEN(STR_FILE_SYS_INFO), &gEfiFileSystemInfoGuid, NULL},
//
// the ones under this are misc GUIDS.
//
{STRING_TOKEN(STR_EFI_GLOBAL_VARIABLE), &gEfiGlobalVariableGuid, NULL},
//
// UEFI 2.2
//
{STRING_TOKEN(STR_IP6_SB), &gEfiIp6ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_IP6), &gEfiIp6ProtocolGuid, NULL},
{STRING_TOKEN(STR_IP6_CONFIG), &gEfiIp6ConfigProtocolGuid, NULL},
{STRING_TOKEN(STR_MTFTP6_SB), &gEfiMtftp6ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_MTFTP6), &gEfiMtftp6ProtocolGuid, NULL},
{STRING_TOKEN(STR_DHCP6_SB), &gEfiDhcp6ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_DHCP6), &gEfiDhcp6ProtocolGuid, NULL},
{STRING_TOKEN(STR_UDP6_SB), &gEfiUdp6ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_UDP6), &gEfiUdp6ProtocolGuid, NULL},
{STRING_TOKEN(STR_TCP6_SB), &gEfiTcp6ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_TCP6), &gEfiTcp6ProtocolGuid, NULL},
{STRING_TOKEN(STR_VLAN_CONFIG), &gEfiVlanConfigProtocolGuid, NULL},
{STRING_TOKEN(STR_EAP), &gEfiEapProtocolGuid, NULL},
{STRING_TOKEN(STR_EAP_MGMT), &gEfiEapManagementProtocolGuid, NULL},
{STRING_TOKEN(STR_FTP4_SB), &gEfiFtp4ServiceBindingProtocolGuid, NULL},
{STRING_TOKEN(STR_FTP4), &gEfiFtp4ProtocolGuid, NULL},
{STRING_TOKEN(STR_IP_SEC_CONFIG), &gEfiIpSecConfigProtocolGuid, NULL},
{STRING_TOKEN(STR_DH), &gEfiDriverHealthProtocolGuid, NULL},
{STRING_TOKEN(STR_DEF_IMG_LOAD), &gEfiDeferredImageLoadProtocolGuid, NULL},
{STRING_TOKEN(STR_USER_CRED), &gEfiUserCredentialProtocolGuid, NULL},
{STRING_TOKEN(STR_USER_MNGR), &gEfiUserManagerProtocolGuid, NULL},
{STRING_TOKEN(STR_ATA_PASS_THRU), &gEfiAtaPassThruProtocolGuid, NULL},
//
// UEFI 2.3
//
{STRING_TOKEN(STR_FW_MGMT), &gEfiFirmwareManagementProtocolGuid, NULL},
{STRING_TOKEN(STR_IP_SEC), &gEfiIpSecProtocolGuid, NULL},
{STRING_TOKEN(STR_IP_SEC2), &gEfiIpSec2ProtocolGuid, NULL},
//
// UEFI 2.3.1
//
{STRING_TOKEN(STR_KMS), &gEfiKmsProtocolGuid, NULL},
{STRING_TOKEN(STR_BLK_IO2), &gEfiBlockIo2ProtocolGuid, NULL},
{STRING_TOKEN(STR_SSC), &gEfiStorageSecurityCommandProtocolGuid, NULL},
{STRING_TOKEN(STR_UCRED2), &gEfiUserCredential2ProtocolGuid, NULL},
//
// UEFI 2.4
//
{STRING_TOKEN(STR_DISK_IO2), &gEfiDiskIo2ProtocolGuid, NULL},
{STRING_TOKEN(STR_ADAPTER_INFO), &gEfiAdapterInformationProtocolGuid, NULL},
//
// PI Spec ones
//
{STRING_TOKEN(STR_IDE_CONT_INIT), &gEfiIdeControllerInitProtocolGuid, NULL},
//
// terminator
//
{STRING_TOKEN(STR_UNKNOWN_DEVICE), NULL, NULL},
};
/**
Function to get the node for a protocol or struct from it's GUID.
if Guid is NULL, then ASSERT.
@param[in] Guid The GUID to look for the name of.
@return The node.
**/
CONST GUID_INFO_BLOCK *
EFIAPI
InternalShellGetNodeFromGuid(
IN CONST EFI_GUID* Guid
)
{
CONST GUID_INFO_BLOCK *ListWalker;
ASSERT(Guid != NULL);
if (PcdGetBool(PcdShellIncludeNtGuids)) {
for (ListWalker = mGuidStringListNT ; ListWalker != NULL && ListWalker->GuidId != NULL ; ListWalker++) {
if (CompareGuid(ListWalker->GuidId, Guid)) {
return (ListWalker);
}
}
}
for (ListWalker = mGuidStringList ; ListWalker != NULL && ListWalker->GuidId != NULL ; ListWalker++) {
if (CompareGuid(ListWalker->GuidId, Guid)) {
return (ListWalker);
}
}
return (ListWalker);
}
/**
Function to get the name of a protocol or struct from it's GUID.
if Guid is NULL, then ASSERT.
@param[in] Guid The GUID to look for the name of.
@param[in] Lang The language to use.
@return pointer to string of the name. The caller
is responsible to free this memory.
**/
CHAR16*
EFIAPI
GetStringNameFromGuid(
IN CONST EFI_GUID *Guid,
IN CONST CHAR8 *Lang OPTIONAL
)
{
CONST GUID_INFO_BLOCK *Id;
Id = InternalShellGetNodeFromGuid(Guid);
return (HiiGetString(mHandleParsingHiiHandle, Id->StringId, Lang));
}
/**
Function to dump protocol information from a handle.
This function will return a allocated string buffer containing the
information. The caller is responsible for freeing the memory.
If Guid is NULL, ASSERT().
If TheHandle is NULL, ASSERT().
@param[in] TheHandle The handle to dump information from.
@param[in] Guid The GUID of the protocol to dump.
@param[in] Verbose TRUE for extra info. FALSE otherwise.
@return The pointer to string.
@retval NULL An error was encountered.
**/
CHAR16*
EFIAPI
GetProtocolInformationDump(
IN CONST EFI_HANDLE TheHandle,
IN CONST EFI_GUID *Guid,
IN CONST BOOLEAN Verbose
)
{
CONST GUID_INFO_BLOCK *Id;
ASSERT(TheHandle != NULL);
ASSERT(Guid != NULL);
if (TheHandle == NULL || Guid == NULL) {
return (NULL);
}
Id = InternalShellGetNodeFromGuid(Guid);
if (Id != NULL && Id->DumpInfo != NULL) {
return (Id->DumpInfo(TheHandle, Verbose));
}
return (NULL);
}
/**
Function to get the Guid for a protocol or struct based on it's string name.
@param[in] Name The pointer to the string name.
@param[in] Lang The pointer to the language code.
@param[in] Guid The pointer to the Guid.
@retval EFI_SUCCESS The operation was sucessful.
**/
EFI_STATUS
EFIAPI
GetGuidFromStringName(
IN CONST CHAR16 *Name,
IN CONST CHAR8 *Lang OPTIONAL,
IN EFI_GUID **Guid
)
{
CONST GUID_INFO_BLOCK *ListWalker;
CHAR16 *String;
ASSERT(Guid != NULL);
if (Guid == NULL) {
return (EFI_INVALID_PARAMETER);
}
*Guid = NULL;
if (PcdGetBool(PcdShellIncludeNtGuids)) {
for (ListWalker = mGuidStringListNT ; ListWalker != NULL && ListWalker->GuidId != NULL ; ListWalker++) {
String = HiiGetString(mHandleParsingHiiHandle, ListWalker->StringId, Lang);
if (Name != NULL && String != NULL && StringNoCaseCompare (&Name, &String) == 0) {
*Guid = ListWalker->GuidId;
}
SHELL_FREE_NON_NULL(String);
if (*Guid != NULL) {
return (EFI_SUCCESS);
}
}
}
for (ListWalker = mGuidStringList ; ListWalker != NULL && ListWalker->GuidId != NULL ; ListWalker++) {
String = HiiGetString(mHandleParsingHiiHandle, ListWalker->StringId, Lang);
if (Name != NULL && String != NULL && StringNoCaseCompare (&Name, &String) == 0) {
*Guid = ListWalker->GuidId;
}
SHELL_FREE_NON_NULL(String);
if (*Guid != NULL) {
return (EFI_SUCCESS);
}
}
return (EFI_NOT_FOUND);
}
/**
Get best support language for this driver.
First base on the user input language to search, second base on the current
platform used language to search, third get the first language from the
support language list. The caller need to free the buffer of the best language.
@param[in] SupportedLanguages The support languages for this driver.
@param[in] InputLanguage The user input language.
@param[in] Iso639Language Whether get language for ISO639.
@return The best support language for this driver.
**/
CHAR8 *
EFIAPI
GetBestLanguageForDriver (
IN CONST CHAR8 *SupportedLanguages,
IN CONST CHAR8 *InputLanguage,
IN BOOLEAN Iso639Language
)
{
CHAR8 *LanguageVariable;
CHAR8 *BestLanguage;
LanguageVariable = GetVariable (Iso639Language ? L"Lang" : L"PlatformLang", &gEfiGlobalVariableGuid);
BestLanguage = GetBestLanguage(
SupportedLanguages,
Iso639Language,
(InputLanguage != NULL) ? InputLanguage : "",
(LanguageVariable != NULL) ? LanguageVariable : "",
SupportedLanguages,
NULL
);
if (LanguageVariable != NULL) {
FreePool (LanguageVariable);
}
return BestLanguage;
}
/**
Function to retrieve the driver name (if possible) from the ComponentName or
ComponentName2 protocol
@param[in] TheHandle The driver handle to get the name of.
@param[in] Language The language to use.
@retval NULL The name could not be found.
@return A pointer to the string name. Do not de-allocate the memory.
**/
CONST CHAR16*
EFIAPI
GetStringNameFromHandle(
IN CONST EFI_HANDLE TheHandle,
IN CONST CHAR8 *Language
)
{
EFI_COMPONENT_NAME2_PROTOCOL *CompNameStruct;
EFI_STATUS Status;
CHAR16 *RetVal;
CHAR8 *BestLang;
BestLang = NULL;
Status = gBS->OpenProtocol(
TheHandle,
&gEfiComponentName2ProtocolGuid,
(VOID**)&CompNameStruct,
gImageHandle,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (!EFI_ERROR(Status)) {
BestLang = GetBestLanguageForDriver (CompNameStruct->SupportedLanguages, Language, FALSE);
Status = CompNameStruct->GetDriverName(CompNameStruct, BestLang, &RetVal);
if (BestLang != NULL) {
FreePool (BestLang);
BestLang = NULL;
}
if (!EFI_ERROR(Status)) {
return (RetVal);
}
}
Status = gBS->OpenProtocol(
TheHandle,
&gEfiComponentNameProtocolGuid,
(VOID**)&CompNameStruct,
gImageHandle,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (!EFI_ERROR(Status)) {
BestLang = GetBestLanguageForDriver (CompNameStruct->SupportedLanguages, Language, FALSE);
Status = CompNameStruct->GetDriverName(CompNameStruct, BestLang, &RetVal);
if (BestLang != NULL) {
FreePool (BestLang);
}
if (!EFI_ERROR(Status)) {
return (RetVal);
}
}
return (NULL);
}
/**
Function to initialize the file global mHandleList object for use in
vonverting handles to index and index to handle.
@retval EFI_SUCCESS The operation was successful.
**/
EFI_STATUS
EFIAPI
InternalShellInitHandleList(
VOID
)
{
EFI_STATUS Status;
EFI_HANDLE *HandleBuffer;
UINTN HandleCount;
HANDLE_LIST *ListWalker;
if (mHandleList.NextIndex != 0) {
return EFI_SUCCESS;
}
InitializeListHead(&mHandleList.List.Link);
mHandleList.NextIndex = 1;
Status = gBS->LocateHandleBuffer (
AllHandles,
NULL,
NULL,
&HandleCount,
&HandleBuffer
);
ASSERT_EFI_ERROR(Status);
if (EFI_ERROR(Status)) {
return (Status);
}
for (mHandleList.NextIndex = 1 ; mHandleList.NextIndex <= HandleCount ; mHandleList.NextIndex++){
ListWalker = AllocateZeroPool(sizeof(HANDLE_LIST));
ASSERT(ListWalker != NULL);
ListWalker->TheHandle = HandleBuffer[mHandleList.NextIndex-1];
ListWalker->TheIndex = mHandleList.NextIndex;
InsertTailList(&mHandleList.List.Link,&ListWalker->Link);
}
FreePool(HandleBuffer);
return (EFI_SUCCESS);
}
/**
Function to retrieve the human-friendly index of a given handle. If the handle
does not have a index one will be automatically assigned. The index value is valid
until the termination of the shell application.
@param[in] TheHandle The handle to retrieve an index for.
@retval 0 A memory allocation failed.
@return The index of the handle.
**/
UINTN
EFIAPI
ConvertHandleToHandleIndex(
IN CONST EFI_HANDLE TheHandle
)
{
EFI_STATUS Status;
EFI_GUID **ProtocolBuffer;
UINTN ProtocolCount;
HANDLE_LIST *ListWalker;
if (TheHandle == NULL) {
return 0;
}
InternalShellInitHandleList();
for (ListWalker = (HANDLE_LIST*)GetFirstNode(&mHandleList.List.Link)
; !IsNull(&mHandleList.List.Link,&ListWalker->Link)
; ListWalker = (HANDLE_LIST*)GetNextNode(&mHandleList.List.Link,&ListWalker->Link)
){
if (ListWalker->TheHandle == TheHandle) {
//
// Verify that TheHandle is still present in the Handle Database
//
Status = gBS->ProtocolsPerHandle(TheHandle, &ProtocolBuffer, &ProtocolCount);
if (EFI_ERROR (Status)) {
//
// TheHandle is not present in the Handle Database, so delete from the handle list
//
RemoveEntryList (&ListWalker->Link);
return 0;
}
FreePool (ProtocolBuffer);
return (ListWalker->TheIndex);
}
}
//
// Verify that TheHandle is valid handle
//
Status = gBS->ProtocolsPerHandle(TheHandle, &ProtocolBuffer, &ProtocolCount);
if (EFI_ERROR (Status)) {
//
// TheHandle is not valid, so do not add to handle list
//
return 0;
}
FreePool (ProtocolBuffer);
ListWalker = AllocateZeroPool(sizeof(HANDLE_LIST));
ASSERT(ListWalker != NULL);
ListWalker->TheHandle = TheHandle;
ListWalker->TheIndex = mHandleList.NextIndex++;
InsertTailList(&mHandleList.List.Link,&ListWalker->Link);
return (ListWalker->TheIndex);
}
/**
Function to retrieve the EFI_HANDLE from the human-friendly index.
@param[in] TheIndex The index to retrieve the EFI_HANDLE for.
@retval NULL The index was invalid.
@return The EFI_HANDLE that index represents.
**/
EFI_HANDLE
EFIAPI
ConvertHandleIndexToHandle(
IN CONST UINTN TheIndex
)
{
EFI_STATUS Status;
EFI_GUID **ProtocolBuffer;
UINTN ProtocolCount;
HANDLE_LIST *ListWalker;
InternalShellInitHandleList();
if (TheIndex >= mHandleList.NextIndex) {
return NULL;
}
for (ListWalker = (HANDLE_LIST*)GetFirstNode(&mHandleList.List.Link)
; !IsNull(&mHandleList.List.Link,&ListWalker->Link)
; ListWalker = (HANDLE_LIST*)GetNextNode(&mHandleList.List.Link,&ListWalker->Link)
){
if (ListWalker->TheIndex == TheIndex && ListWalker->TheHandle != NULL) {
//
// Verify that LinkWalker->TheHandle is valid handle
//
Status = gBS->ProtocolsPerHandle(ListWalker->TheHandle, &ProtocolBuffer, &ProtocolCount);
if (EFI_ERROR (Status)) {
//
// TheHandle is not valid, so do not add to handle list
//
ListWalker->TheHandle = NULL;
}
return (ListWalker->TheHandle);
}
}
return NULL;
}
/**
Gets all the related EFI_HANDLEs based on the mask supplied.
This function scans all EFI_HANDLES in the UEFI environment's handle database
and returns the ones with the specified relationship (Mask) to the specified
controller handle.
If both DriverBindingHandle and ControllerHandle are NULL, then ASSERT.
If MatchingHandleCount is NULL, then ASSERT.
If MatchingHandleBuffer is not NULL upon a successful return the memory must be
caller freed.
@param[in] DriverBindingHandle The handle with Driver Binding protocol on it.
@param[in] ControllerHandle The handle with Device Path protocol on it.
@param[in] MatchingHandleCount The pointer to UINTN that specifies the number of HANDLES in
MatchingHandleBuffer.
@param[out] MatchingHandleBuffer On a successful return, a buffer of MatchingHandleCount
EFI_HANDLEs with a terminating NULL EFI_HANDLE.
@param[out] HandleType An array of type information.
@retval EFI_SUCCESS The operation was successful, and any related handles
are in MatchingHandleBuffer.
@retval EFI_NOT_FOUND No matching handles were found.
@retval EFI_INVALID_PARAMETER A parameter was invalid or out of range.
**/
EFI_STATUS
EFIAPI
ParseHandleDatabaseByRelationshipWithType (
IN CONST EFI_HANDLE DriverBindingHandle OPTIONAL,
IN CONST EFI_HANDLE ControllerHandle OPTIONAL,
IN UINTN *HandleCount,
OUT EFI_HANDLE **HandleBuffer,
OUT UINTN **HandleType
)
{
EFI_STATUS Status;
UINTN HandleIndex;
EFI_GUID **ProtocolGuidArray;
UINTN ArrayCount;
UINTN ProtocolIndex;
EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfo;
UINTN OpenInfoCount;
UINTN OpenInfoIndex;
UINTN ChildIndex;
INTN DriverBindingHandleIndex;
ASSERT(HandleCount != NULL);
ASSERT(HandleBuffer != NULL);
ASSERT(HandleType != NULL);
ASSERT(DriverBindingHandle != NULL || ControllerHandle != NULL);
*HandleCount = 0;
*HandleBuffer = NULL;
*HandleType = NULL;
//
// Retrieve the list of all handles from the handle database
//
Status = gBS->LocateHandleBuffer (
AllHandles,
NULL,
NULL,
HandleCount,
HandleBuffer
);
if (EFI_ERROR (Status)) {
return (Status);
}
*HandleType = AllocateZeroPool (*HandleCount * sizeof (UINTN));
ASSERT(*HandleType != NULL);
DriverBindingHandleIndex = -1;
for (HandleIndex = 0; HandleIndex < *HandleCount; HandleIndex++) {
if (DriverBindingHandle != NULL && (*HandleBuffer)[HandleIndex] == DriverBindingHandle) {
DriverBindingHandleIndex = (INTN)HandleIndex;
}
}
for (HandleIndex = 0; HandleIndex < *HandleCount; HandleIndex++) {
//
// Retrieve the list of all the protocols on each handle
//
Status = gBS->ProtocolsPerHandle (
(*HandleBuffer)[HandleIndex],
&ProtocolGuidArray,
&ArrayCount
);
if (EFI_ERROR (Status)) {
continue;
}
for (ProtocolIndex = 0; ProtocolIndex < ArrayCount; ProtocolIndex++) {
//
// Set the bit describing what this handle has
//
if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiLoadedImageProtocolGuid) ) {
(*HandleType)[HandleIndex] |= HR_IMAGE_HANDLE;
} else if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiDriverBindingProtocolGuid) ) {
(*HandleType)[HandleIndex] |= HR_DRIVER_BINDING_HANDLE;
} else if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiDriverConfiguration2ProtocolGuid)) {
(*HandleType)[HandleIndex] |= HR_DRIVER_CONFIGURATION_HANDLE;
} else if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiDriverConfigurationProtocolGuid) ) {
(*HandleType)[HandleIndex] |= HR_DRIVER_CONFIGURATION_HANDLE;
} else if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiDriverDiagnostics2ProtocolGuid) ) {
(*HandleType)[HandleIndex] |= HR_DRIVER_DIAGNOSTICS_HANDLE;
} else if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiDriverDiagnosticsProtocolGuid) ) {
(*HandleType)[HandleIndex] |= HR_DRIVER_DIAGNOSTICS_HANDLE;
} else if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiComponentName2ProtocolGuid) ) {
(*HandleType)[HandleIndex] |= HR_COMPONENT_NAME_HANDLE;
} else if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiComponentNameProtocolGuid) ) {
(*HandleType)[HandleIndex] |= HR_COMPONENT_NAME_HANDLE;
} else if (CompareGuid (ProtocolGuidArray[ProtocolIndex], &gEfiDevicePathProtocolGuid) ) {
(*HandleType)[HandleIndex] |= HR_DEVICE_HANDLE;
} else {
DEBUG_CODE_BEGIN();
ASSERT((*HandleType)[HandleIndex] == (*HandleType)[HandleIndex]);
DEBUG_CODE_END();
}
//
// Retrieve the list of agents that have opened each protocol
//
Status = gBS->OpenProtocolInformation (
(*HandleBuffer)[HandleIndex],
ProtocolGuidArray[ProtocolIndex],
&OpenInfo,
&OpenInfoCount
);
if (EFI_ERROR (Status)) {
continue;
}
if (ControllerHandle == NULL) {
//
// ControllerHandle == NULL and DriverBindingHandle != NULL.
// Return information on all the controller handles that the driver specified by DriverBindingHandle is managing
//
for (OpenInfoIndex = 0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {
if (OpenInfo[OpenInfoIndex].AgentHandle == DriverBindingHandle && (OpenInfo[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_DRIVER) != 0) {
(*HandleType)[HandleIndex] |= (HR_DEVICE_HANDLE | HR_CONTROLLER_HANDLE);
if (DriverBindingHandleIndex != -1) {
(*HandleType)[DriverBindingHandleIndex] |= HR_DEVICE_DRIVER;
}
}
if (OpenInfo[OpenInfoIndex].AgentHandle == DriverBindingHandle && (OpenInfo[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
(*HandleType)[HandleIndex] |= (HR_DEVICE_HANDLE | HR_CONTROLLER_HANDLE);
if (DriverBindingHandleIndex != -1) {
(*HandleType)[DriverBindingHandleIndex] |= (HR_BUS_DRIVER | HR_DEVICE_DRIVER);
}
for (ChildIndex = 0; ChildIndex < *HandleCount; ChildIndex++) {
if (OpenInfo[OpenInfoIndex].ControllerHandle == (*HandleBuffer)[ChildIndex]) {
(*HandleType)[ChildIndex] |= (HR_DEVICE_HANDLE | HR_CHILD_HANDLE);
}
}
}
}
}
if (DriverBindingHandle == NULL && ControllerHandle != NULL) {
if (ControllerHandle == (*HandleBuffer)[HandleIndex]) {
(*HandleType)[HandleIndex] |= (HR_DEVICE_HANDLE | HR_CONTROLLER_HANDLE);
for (OpenInfoIndex = 0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {
if ((OpenInfo[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_DRIVER) != 0) {
for (ChildIndex = 0; ChildIndex < *HandleCount; ChildIndex++) {
if (OpenInfo[OpenInfoIndex].AgentHandle == (*HandleBuffer)[ChildIndex]) {
(*HandleType)[ChildIndex] |= HR_DEVICE_DRIVER;
}
}
}
if ((OpenInfo[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
for (ChildIndex = 0; ChildIndex < *HandleCount; ChildIndex++) {
if (OpenInfo[OpenInfoIndex].AgentHandle == (*HandleBuffer)[ChildIndex]) {
(*HandleType)[ChildIndex] |= (HR_BUS_DRIVER | HR_DEVICE_DRIVER);
}
if (OpenInfo[OpenInfoIndex].ControllerHandle == (*HandleBuffer)[ChildIndex]) {
(*HandleType)[ChildIndex] |= (HR_DEVICE_HANDLE | HR_CHILD_HANDLE);
}
}
}
}
} else {
for (OpenInfoIndex = 0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {
if ((OpenInfo[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
if (OpenInfo[OpenInfoIndex].ControllerHandle == ControllerHandle) {
(*HandleType)[HandleIndex] |= (HR_DEVICE_HANDLE | HR_PARENT_HANDLE);
}
}
}
}
}
if (DriverBindingHandle != NULL && ControllerHandle != NULL) {
if (ControllerHandle == (*HandleBuffer)[HandleIndex]) {
(*HandleType)[HandleIndex] |= (HR_DEVICE_HANDLE | HR_CONTROLLER_HANDLE);
for (OpenInfoIndex = 0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {
if ((OpenInfo[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_DRIVER) != 0) {
if (OpenInfo[OpenInfoIndex].AgentHandle == DriverBindingHandle) {
if (DriverBindingHandleIndex != -1) {
(*HandleType)[DriverBindingHandleIndex] |= HR_DEVICE_DRIVER;
}
}
}
if ((OpenInfo[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
if (OpenInfo[OpenInfoIndex].AgentHandle == DriverBindingHandle) {
for (ChildIndex = 0; ChildIndex < *HandleCount; ChildIndex++) {
if (OpenInfo[OpenInfoIndex].ControllerHandle == (*HandleBuffer)[ChildIndex]) {
(*HandleType)[ChildIndex] |= (HR_DEVICE_HANDLE | HR_CHILD_HANDLE);
}
}
}
for (ChildIndex = 0; ChildIndex < *HandleCount; ChildIndex++) {
if (OpenInfo[OpenInfoIndex].AgentHandle == (*HandleBuffer)[ChildIndex]) {
(*HandleType)[ChildIndex] |= (HR_BUS_DRIVER | HR_DEVICE_DRIVER);
}
}
}
}
} else {
for (OpenInfoIndex = 0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {
if ((OpenInfo[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
if (OpenInfo[OpenInfoIndex].ControllerHandle == ControllerHandle) {
(*HandleType)[HandleIndex] |= (HR_DEVICE_HANDLE | HR_PARENT_HANDLE);
}
}
}
}
}
FreePool (OpenInfo);
}
FreePool (ProtocolGuidArray);
}
return EFI_SUCCESS;
}
/**
Gets all the related EFI_HANDLEs based on the single EFI_HANDLE and the mask
supplied.
This function will scan all EFI_HANDLES in the UEFI environment's handle database
and return all the ones with the specified relationship (Mask) to the specified
controller handle.
If both DriverBindingHandle and ControllerHandle are NULL, then ASSERT.
If MatchingHandleCount is NULL, then ASSERT.
If MatchingHandleBuffer is not NULL upon a sucessful return the memory must be
caller freed.
@param[in] DriverBindingHandle Handle to a object with Driver Binding protocol
on it.
@param[in] ControllerHandle Handle to a device with Device Path protocol on it.
@param[in] Mask Mask of what relationship(s) is desired.
@param[in] MatchingHandleCount Poitner to UINTN specifying number of HANDLES in
MatchingHandleBuffer.
@param[out] MatchingHandleBuffer On a sucessful return a buffer of MatchingHandleCount
EFI_HANDLEs and a terminating NULL EFI_HANDLE.
@retval EFI_SUCCESS The operation was sucessful and any related handles
are in MatchingHandleBuffer;
@retval EFI_NOT_FOUND No matching handles were found.
@retval EFI_INVALID_PARAMETER A parameter was invalid or out of range.
**/
EFI_STATUS
EFIAPI
ParseHandleDatabaseByRelationship (
IN CONST EFI_HANDLE DriverBindingHandle OPTIONAL,
IN CONST EFI_HANDLE ControllerHandle OPTIONAL,
IN CONST UINTN Mask,
IN UINTN *MatchingHandleCount,
OUT EFI_HANDLE **MatchingHandleBuffer OPTIONAL
)
{
EFI_STATUS Status;
UINTN HandleCount;
EFI_HANDLE *HandleBuffer;
UINTN *HandleType;
UINTN HandleIndex;
ASSERT(MatchingHandleCount != NULL);
ASSERT(DriverBindingHandle != NULL || ControllerHandle != NULL);
if ((Mask & HR_VALID_MASK) != Mask) {
return (EFI_INVALID_PARAMETER);
}
if ((Mask & HR_CHILD_HANDLE) != 0 && DriverBindingHandle == NULL) {
return (EFI_INVALID_PARAMETER);
}
*MatchingHandleCount = 0;
if (MatchingHandleBuffer != NULL) {
*MatchingHandleBuffer = NULL;
}
HandleBuffer = NULL;
HandleType = NULL;
Status = ParseHandleDatabaseByRelationshipWithType (
DriverBindingHandle,
ControllerHandle,
&HandleCount,
&HandleBuffer,
&HandleType
);
if (!EFI_ERROR (Status)) {
//
// Count the number of handles that match the attributes in Mask
//
for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
if ((HandleType[HandleIndex] & Mask) == Mask) {
(*MatchingHandleCount)++;
}
}
//
// If no handles match the attributes in Mask then return EFI_NOT_FOUND
//
if (*MatchingHandleCount == 0) {
Status = EFI_NOT_FOUND;
} else {
if (MatchingHandleBuffer == NULL) {
//
// Someone just wanted the count...
//
Status = EFI_SUCCESS;
} else {
//
// Allocate a handle buffer for the number of handles that matched the attributes in Mask
//
*MatchingHandleBuffer = AllocateZeroPool ((*MatchingHandleCount +1)* sizeof (EFI_HANDLE));
ASSERT(*MatchingHandleBuffer != NULL);
for (HandleIndex = 0,*MatchingHandleCount = 0
; HandleIndex < HandleCount
; HandleIndex++
){
//
// Fill the allocated buffer with the handles that matched the attributes in Mask
//
if ((HandleType[HandleIndex] & Mask) == Mask) {
(*MatchingHandleBuffer)[(*MatchingHandleCount)++] = HandleBuffer[HandleIndex];
}
}
//
// Make the last one NULL
//
(*MatchingHandleBuffer)[*MatchingHandleCount] = NULL;
Status = EFI_SUCCESS;
} // MacthingHandleBuffer == NULL (ELSE)
} // *MatchingHandleCount == 0 (ELSE)
} // no error on ParseHandleDatabaseByRelationshipWithType
if (HandleBuffer != NULL) {
FreePool (HandleBuffer);
}
if (HandleType != NULL) {
FreePool (HandleType);
}
return Status;
}
/**
Gets handles for any child controllers of the passed in controller.
@param[in] ControllerHandle The handle of the "parent controller"
@param[in] MatchingHandleCount Pointer to the number of handles in
MatchingHandleBuffer on return.
@param[out] MatchingHandleBuffer Buffer containing handles on a successful
return.
@retval EFI_SUCCESS The operation was sucessful.
**/
EFI_STATUS
EFIAPI
ParseHandleDatabaseForChildControllers(
IN CONST EFI_HANDLE ControllerHandle,
IN UINTN *MatchingHandleCount,
OUT EFI_HANDLE **MatchingHandleBuffer OPTIONAL
)
{
EFI_STATUS Status;
UINTN HandleIndex;
UINTN DriverBindingHandleCount;
EFI_HANDLE *DriverBindingHandleBuffer;
UINTN DriverBindingHandleIndex;
UINTN ChildControllerHandleCount;
EFI_HANDLE *ChildControllerHandleBuffer;
UINTN ChildControllerHandleIndex;
EFI_HANDLE *HandleBufferForReturn;
if (MatchingHandleCount == NULL) {
return (EFI_INVALID_PARAMETER);
}
*MatchingHandleCount = 0;
Status = PARSE_HANDLE_DATABASE_UEFI_DRIVERS (
ControllerHandle,
&DriverBindingHandleCount,
&DriverBindingHandleBuffer
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Get a buffer big enough for all the controllers.
//
HandleBufferForReturn = GetHandleListByProtocol(NULL);
if (HandleBufferForReturn == NULL) {
FreePool (DriverBindingHandleBuffer);
return (EFI_NOT_FOUND);
}
for (DriverBindingHandleIndex = 0; DriverBindingHandleIndex < DriverBindingHandleCount; DriverBindingHandleIndex++) {
Status = PARSE_HANDLE_DATABASE_MANAGED_CHILDREN (
DriverBindingHandleBuffer[DriverBindingHandleIndex],
ControllerHandle,
&ChildControllerHandleCount,
&ChildControllerHandleBuffer
);
if (EFI_ERROR (Status)) {
continue;
}
for (ChildControllerHandleIndex = 0;
ChildControllerHandleIndex < ChildControllerHandleCount;
ChildControllerHandleIndex++
) {
for (HandleIndex = 0; HandleIndex < *MatchingHandleCount; HandleIndex++) {
if (HandleBufferForReturn[HandleIndex] == ChildControllerHandleBuffer[ChildControllerHandleIndex]) {
break;
}
}
if (HandleIndex >= *MatchingHandleCount) {
HandleBufferForReturn[(*MatchingHandleCount)++] = ChildControllerHandleBuffer[ChildControllerHandleIndex];
}
}
FreePool (ChildControllerHandleBuffer);
}
FreePool (DriverBindingHandleBuffer);
if (MatchingHandleBuffer != NULL) {
*MatchingHandleBuffer = HandleBufferForReturn;
} else {
FreePool(HandleBufferForReturn);
}
return (EFI_SUCCESS);
}
/**
Appends 1 buffer to another buffer. This will re-allocate the destination buffer
if necessary to fit all of the data.
If DestinationBuffer is NULL, then ASSERT().
@param[in, out] DestinationBuffer The pointer to the pointer to the buffer to append onto.
@param[in, out] DestinationSize The pointer to the size of DestinationBuffer.
@param[in] SourceBuffer The pointer to the buffer to append onto DestinationBuffer.
@param[in] SourceSize The number of bytes of SourceBuffer to append.
@retval NULL A memory allocation failed.
@retval NULL A parameter was invalid.
@return A pointer to (*DestinationBuffer).
**/
VOID*
EFIAPI
BuffernCatGrow (
IN OUT VOID **DestinationBuffer,
IN OUT UINTN *DestinationSize,
IN VOID *SourceBuffer,
IN UINTN SourceSize
)
{
UINTN LocalDestinationSize;
UINTN LocalDestinationFinalSize;
ASSERT(DestinationBuffer != NULL);
if (SourceSize == 0 || SourceBuffer == NULL) {
return (*DestinationBuffer);
}
if (DestinationSize == NULL) {
LocalDestinationSize = 0;
} else {
LocalDestinationSize = *DestinationSize;
}
LocalDestinationFinalSize = LocalDestinationSize + SourceSize;
if (DestinationSize != NULL) {
*DestinationSize = LocalDestinationSize;
}
if (LocalDestinationSize == 0) {
// allcoate
*DestinationBuffer = AllocateZeroPool(LocalDestinationFinalSize);
} else {
// reallocate
*DestinationBuffer = ReallocatePool(LocalDestinationSize, LocalDestinationFinalSize, *DestinationBuffer);
}
ASSERT(*DestinationBuffer != NULL);
// copy
return (CopyMem(((UINT8*)(*DestinationBuffer)) + LocalDestinationSize, SourceBuffer, SourceSize));
}
/**
Gets handles for any child devices produced by the passed in driver.
@param[in] DriverHandle The handle of the driver.
@param[in] MatchingHandleCount Pointer to the number of handles in
MatchingHandleBuffer on return.
@param[out] MatchingHandleBuffer Buffer containing handles on a successful
return.
@retval EFI_SUCCESS The operation was sucessful.
@sa ParseHandleDatabaseByRelationship
**/
EFI_STATUS
EFIAPI
ParseHandleDatabaseForChildDevices(
IN CONST EFI_HANDLE DriverHandle,
IN UINTN *MatchingHandleCount,
OUT EFI_HANDLE **MatchingHandleBuffer OPTIONAL
)
{
EFI_HANDLE *Buffer;
EFI_HANDLE *Buffer2;
UINTN Count1;
UINTN Count2;
UINTN HandleIndex;
EFI_STATUS Status;
UINTN HandleBufferSize;
ASSERT(MatchingHandleCount != NULL);
HandleBufferSize = 0;
Buffer = NULL;
Buffer2 = NULL;
*MatchingHandleCount = 0;
Status = PARSE_HANDLE_DATABASE_DEVICES (
DriverHandle,
&Count1,
&Buffer
);
if (!EFI_ERROR (Status)) {
for (HandleIndex = 0; HandleIndex < Count1; HandleIndex++) {
//
// now find the children
//
Status = PARSE_HANDLE_DATABASE_MANAGED_CHILDREN (
DriverHandle,
Buffer[HandleIndex],
&Count2,
&Buffer2
);
if (EFI_ERROR(Status)) {
break;
}
//
// save out required and optional data elements
//
*MatchingHandleCount += Count2;
if (MatchingHandleBuffer != NULL) {
*MatchingHandleBuffer = BuffernCatGrow((VOID**)MatchingHandleBuffer, &HandleBufferSize, Buffer2, Count2 * sizeof(Buffer2[0]));
}
//
// free the memory
//
if (Buffer2 != NULL) {
FreePool(Buffer2);
}
}
}
if (Buffer != NULL) {
FreePool(Buffer);
}
return (Status);
}
/**
Function to get all handles that support a given protocol or all handles.
@param[in] ProtocolGuid The guid of the protocol to get handles for. If NULL
then the function will return all handles.
@retval NULL A memory allocation failed.
@return A NULL terminated list of handles.
**/
EFI_HANDLE*
EFIAPI
GetHandleListByProtocol (
IN CONST EFI_GUID *ProtocolGuid OPTIONAL
)
{
EFI_HANDLE *HandleList;
UINTN Size;
EFI_STATUS Status;
Size = 0;
HandleList = NULL;
//
// We cannot use LocateHandleBuffer since we need that NULL item on the ends of the list!
//
if (ProtocolGuid == NULL) {
Status = gBS->LocateHandle(AllHandles, NULL, NULL, &Size, HandleList);
if (Status == EFI_BUFFER_TOO_SMALL) {
HandleList = AllocateZeroPool(Size + sizeof(EFI_HANDLE));
if (HandleList == NULL) {
return (NULL);
}
Status = gBS->LocateHandle(AllHandles, NULL, NULL, &Size, HandleList);
HandleList[Size/sizeof(EFI_HANDLE)] = NULL;
}
} else {
Status = gBS->LocateHandle(ByProtocol, (EFI_GUID*)ProtocolGuid, NULL, &Size, HandleList);
if (Status == EFI_BUFFER_TOO_SMALL) {
HandleList = AllocateZeroPool(Size + sizeof(EFI_HANDLE));
if (HandleList == NULL) {
return (NULL);
}
Status = gBS->LocateHandle(ByProtocol, (EFI_GUID*)ProtocolGuid, NULL, &Size, HandleList);
HandleList[Size/sizeof(EFI_HANDLE)] = NULL;
}
}
if (EFI_ERROR(Status)) {
if (HandleList != NULL) {
FreePool(HandleList);
}
return (NULL);
}
return (HandleList);
}
/**
Function to get all handles that support some protocols.
@param[in] ProtocolGuids A NULL terminated list of protocol GUIDs.
@retval NULL A memory allocation failed.
@retval NULL ProtocolGuids was NULL.
@return A NULL terminated list of EFI_HANDLEs.
**/
EFI_HANDLE*
EFIAPI
GetHandleListByProtocolList (
IN CONST EFI_GUID **ProtocolGuids
)
{
EFI_HANDLE *HandleList;
UINTN Size;
UINTN TotalSize;
UINTN TempSize;
EFI_STATUS Status;
CONST EFI_GUID **GuidWalker;
EFI_HANDLE *HandleWalker1;
EFI_HANDLE *HandleWalker2;
Size = 0;
HandleList = NULL;
TotalSize = sizeof(EFI_HANDLE);
for (GuidWalker = ProtocolGuids ; GuidWalker != NULL && *GuidWalker != NULL ; GuidWalker++,Size = 0){
Status = gBS->LocateHandle(ByProtocol, (EFI_GUID*)(*GuidWalker), NULL, &Size, NULL);
if (Status == EFI_BUFFER_TOO_SMALL) {
TotalSize += Size;
}
}
//
// No handles were found...
//
if (TotalSize == sizeof(EFI_HANDLE)) {
return (NULL);
}
HandleList = AllocateZeroPool(TotalSize);
if (HandleList == NULL) {
return (NULL);
}
Size = 0;
for (GuidWalker = ProtocolGuids ; GuidWalker != NULL && *GuidWalker != NULL ; GuidWalker++){
TempSize = TotalSize - Size;
Status = gBS->LocateHandle(ByProtocol, (EFI_GUID*)(*GuidWalker), NULL, &TempSize, HandleList+(Size/sizeof(EFI_HANDLE)));
//
// Allow for missing protocols... Only update the 'used' size upon success.
//
if (!EFI_ERROR(Status)) {
Size += TempSize;
}
}
ASSERT(HandleList[(TotalSize/sizeof(EFI_HANDLE))-1] == NULL);
for (HandleWalker1 = HandleList ; HandleWalker1 != NULL && *HandleWalker1 != NULL ; HandleWalker1++) {
for (HandleWalker2 = HandleWalker1 + 1; HandleWalker2 != NULL && *HandleWalker2 != NULL ; HandleWalker2++) {
if (*HandleWalker1 == *HandleWalker2) {
//
// copy memory back 1 handle width.
//
CopyMem(HandleWalker2, HandleWalker2 + 1, TotalSize - ((HandleWalker2-HandleList+1)*sizeof(EFI_HANDLE)));
}
}
}
return (HandleList);
}
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