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/*
* Copyright (c) 2022, Konstantin Aladyshev <aladyshev22@gmail.com>
*
* SPDX-License-Identifier: MIT
*/
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Protocol/HiiConfigKeyword.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DevicePathLib.h>
VOID PrintBuffer(UINT8* Buffer, UINTN Size)
{
UINTN i = 0;
while (i < Size) {
Print(L"%02x ", Buffer[i]);
i++;
if (!(i%16)) {
Print(L" | ");
for (UINTN j=16; j>0; j--)
if ((Buffer[i-j] >= 0x20) && (Buffer[i-j] < 0x7E))
Print(L"%c", Buffer[i-j]);
else
Print(L".");
Print(L"\n");
}
}
if (i%16) {
for (UINTN j=0; j<=15; j++) {
if ((i+j)%16)
Print(L" ");
else
break;
}
Print(L" | ");
for (UINTN j=(i%16); j>0; j--) {
if ((Buffer[i-j] >= 0x20) && (Buffer[i-j] < 0x7E))
Print(L"%c", Buffer[i-j]);
else
Print(L".");
}
Print(L"\n");
}
}
VOID ByteCfgStringToBuffer(CHAR16* CfgString, UINTN CfgStringLen, UINT8** Buffer, UINTN* BufferSize)
{
*BufferSize = (CfgStringLen + 1) / 2;
*Buffer = (UINT8*)AllocateZeroPool(*BufferSize);
UINT8 DigitUint8;
CHAR16 TempStr[2] = {0};
for (UINTN Index = 0; Index < CfgStringLen; Index++) {
TempStr[0] = CfgString[Index];
DigitUint8 = (UINT8)StrHexToUint64(TempStr);
if ((Index & 1) == 0) {
(*Buffer)[Index/2] = DigitUint8;
} else {
(*Buffer)[Index/2] = (UINT8)(((*Buffer)[Index/2] << 4) + DigitUint8);
}
}
}
VOID ByteCfgStringToBufferReversed(CHAR16* CfgString, UINTN CfgStringLen, UINT8** Buffer, UINTN* BufferSize)
{
*BufferSize = (CfgStringLen + 1) / 2;
*Buffer = (UINT8*)AllocateZeroPool(*BufferSize);
UINT8 DigitUint8;
CHAR16 TempStr[2] = {0};
for (INTN Index = (CfgStringLen-1); Index >= 0; Index--) {
TempStr[0] = CfgString[Index];
DigitUint8 = (UINT8)StrHexToUint64(TempStr);
if (((CfgStringLen-1-Index) & 1) == 0) {
(*Buffer)[(CfgStringLen-1-Index)/2] = DigitUint8;
} else {
(*Buffer)[(CfgStringLen-1-Index)/2] = (UINT8)((DigitUint8 << 4) + (*Buffer)[(CfgStringLen-1-Index)/2]);
}
}
}
EFI_STATUS DevicePathFromCfgString(CHAR16* CfgString, UINTN Size, EFI_DEVICE_PATH_PROTOCOL** DevicePath)
{
UINTN DevicePathSize;
ByteCfgStringToBuffer(CfgString, Size, (UINT8**)DevicePath, &DevicePathSize);
EFI_DEVICE_PATH_PROTOCOL* DevicePathTest = *DevicePath;
while (!IsDevicePathEnd(DevicePathTest)) {
if ((DevicePathTest->Type == 0) || (DevicePathTest->SubType == 0) || (DevicePathNodeLength(DevicePathTest) < sizeof(EFI_DEVICE_PATH_PROTOCOL)))
return EFI_NOT_FOUND;
DevicePathTest = NextDevicePathNode (DevicePathTest);
}
return EFI_SUCCESS;
}
VOID PrintLongString(CHAR16* Str)
{
UINT32 MaxPrintBufferSize = PcdGet32(PcdUefiLibMaxPrintBufferSize);
if (StrLen(Str) > MaxPrintBufferSize) {
EFI_STRING TempStr = (EFI_STRING)AllocateZeroPool(MaxPrintBufferSize * sizeof (CHAR16));
CopyMem(TempStr, Str, MaxPrintBufferSize * sizeof (CHAR16));
TempStr[MaxPrintBufferSize-1]=0;
TempStr[MaxPrintBufferSize-2]=L'>';
TempStr[MaxPrintBufferSize-3]=L'.';
TempStr[MaxPrintBufferSize-4]=L'.';
TempStr[MaxPrintBufferSize-5]=L'.';
TempStr[MaxPrintBufferSize-6]=L'<';
Print(L"%s", TempStr);
FreePool(TempStr);
} else {
Print(L"%s", Str);
}
}
VOID PrintConfigSubString(
IN EFI_STRING ConfigString
)
{
EFI_STATUS Status;
if (StrStr(ConfigString, L"NAMESPACE=")) {
Print(L"\n");
Print(L"%s\n", ConfigString);
} else if (StrStr(ConfigString, L"PATH=")) {
EFI_DEVICE_PATH_PROTOCOL* DevicePath;
Status = DevicePathFromCfgString(&ConfigString[StrLen(L"PATH=")], StrLen(ConfigString) - StrLen(L"PATH="), &DevicePath);
if (!EFI_ERROR(Status))
Print(L"%s (%s)\n", ConfigString, ConvertDevicePathToText((EFI_DEVICE_PATH_PROTOCOL*) DevicePath, FALSE, FALSE));
else
Print(L"%s\n", ConfigString);
FreePool(DevicePath);
} else if (StrStr(ConfigString, L"VALUE=")) {
PrintLongString(ConfigString);
Print(L"\n");
UINT8* Buffer;
UINTN BufferSize;
ByteCfgStringToBufferReversed(&ConfigString[StrLen(L"VALUE=")], StrLen(&ConfigString[StrLen(L"VALUE=")]), &Buffer, &BufferSize);
PrintBuffer(Buffer, BufferSize);
FreePool(Buffer);
} else {
Print(L"%s\n", ConfigString);
}
}
VOID PrintConfigString(
IN EFI_STRING ConfigString
)
{
UINTN StartIndex=0;
for (UINTN i=0; ConfigString[i] != 0; i++) {
if (ConfigString[i] == L'&') {
ConfigString[i] = 0;
PrintConfigSubString(&ConfigString[StartIndex]);
StartIndex = i+1;
}
}
PrintConfigSubString(&ConfigString[StartIndex]);
}
EFI_STRING ProgressErrorStr(UINT32 ProgressErr)
{
switch (ProgressErr) {
case KEYWORD_HANDLER_NAMESPACE_ID_NOT_FOUND:
return L"NamespaceId not found\n";
case KEYWORD_HANDLER_MALFORMED_STRING:
return L"Malformed string\n";
case KEYWORD_HANDLER_KEYWORD_NOT_FOUND:
return L"Keyword not found\n";
case KEYWORD_HANDLER_INCOMPATIBLE_VALUE_DETECTED:
return L"Incompatible value detected\n";
case KEYWORD_HANDLER_ACCESS_NOT_PERMITTED:
return L"Access not permitted\n";
default:
return L"Unknown error\n";
}
}
VOID Usage()
{
Print(L"Usage:\n");
Print(L"HIIKeyword get <NamespaceStr> <KeywordStr>\n");
Print(L"HIIKeyword set <KeywordStr>\n");
}
INTN
EFIAPI
ShellAppMain (
IN UINTN Argc,
IN CHAR16 **Argv
)
{
EFI_CONFIG_KEYWORD_HANDLER_PROTOCOL *gHiiConfigKeywordHandler = NULL;
EFI_STATUS Status = gBS->LocateProtocol(&gEfiConfigKeywordHandlerProtocolGuid,
NULL,
(VOID **)&gHiiConfigKeywordHandler);
if (EFI_ERROR(Status)) {
Print(L"Error! Can't locate gEfiConfigKeywordHandlerProtocolGuid: %r", Status);
return Status;
}
if (Argc==1) {
Usage();
return EFI_SUCCESS;
}
EFI_STRING Progress;
UINT32 ProgressErr;
if (!StrCmp(Argv[1], L"get")) {
if (Argc != 4) {
Print(L"Wrong argument!\n");
Usage();
return EFI_INVALID_PARAMETER;
}
EFI_STRING NameSpaceId = Argv[2];
EFI_STRING KeywordString = Argv[3];
if (!StrCmp(NameSpaceId, L'\0')) {
NameSpaceId = NULL;
}
if (!StrCmp(KeywordString, L'\0')) {
KeywordString = NULL;
}
EFI_STRING Results;
Status = gHiiConfigKeywordHandler->GetData(gHiiConfigKeywordHandler,
NameSpaceId,
KeywordString,
&Progress,
&ProgressErr,
&Results);
if (StrCmp(Progress, L'\0')) {
Print(L"Part of string was unparsed %s\n", Progress);
}
if (ProgressErr) {
Print(L"Error! ProgressErr=%s\n", ProgressErrorStr(ProgressErr));
}
if (EFI_ERROR(Status)) {
Print(L"Error! GetData returned %r\n", Status);
return Status;
}
Print(L"Response: ");
PrintLongString(Results);
Print(L"\n\n");
PrintConfigString(Results);
FreePool(Results);
} else if (!StrCmp(Argv[1], L"set")) {
if (Argc != 3) {
Print(L"Wrong argument!\n");
Usage();
return EFI_INVALID_PARAMETER;
}
Status = gHiiConfigKeywordHandler->SetData(gHiiConfigKeywordHandler,
Argv[2],
&Progress,
&ProgressErr);
if (StrCmp(Progress, L'\0')) {
Print(L"Part of string was unparsed %s\n", Progress);
}
if (ProgressErr) {
Print(L"Error! ProgressErr=%s\n", ProgressErrorStr(ProgressErr));
}
if (EFI_ERROR(Status)) {
Print(L"Error! SetData returned %r\n", Status);
return Status;
}
} else {
Print(L"Wrong argument!\n");
Usage();
return EFI_INVALID_PARAMETER;
}
return EFI_SUCCESS;
}
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