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/*
* Copyright (c) 2021, Konstantin Aladyshev <aladyshev22@gmail.com>
*
* SPDX-License-Identifier: MIT
*/
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Protocol/VariablePolicy.h>
EFI_STATUS
EFIAPI
UefiMain (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
CHAR8* LanguageString;
Status = GetEfiGlobalVariable2(L"PlatformLangCodes", (VOID**)&LanguageString, NULL);
if (EFI_ERROR(Status)) {
Print(L"Error! Can't perform GetEfiGlobalVariable2, status=%r\n", Status);
return Status;
}
Print(L"Current value of the 'PlatformLangCodes' variable is '%a'\n", LanguageString);
CHAR8* NewLanguageString = AllocatePool(AsciiStrLen(LanguageString) + AsciiStrSize(";ru-RU"));
if (NewLanguageString == NULL) {
Print(L"Error! Can't allocate size for new PlatformLangCodes variable\n");
FreePool(LanguageString);
return EFI_OUT_OF_RESOURCES;
}
CopyMem(NewLanguageString, LanguageString, AsciiStrLen(LanguageString));
CopyMem(&NewLanguageString[AsciiStrLen(LanguageString)], ";ru-RU", AsciiStrSize(";ru-RU"));
Print(L"Set 'PlatformLangCodes' variable to '%a'\n", NewLanguageString);
Status = gRT->SetVariable (
L"PlatformLangCodes",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
AsciiStrSize(NewLanguageString),
NewLanguageString
);
if (EFI_ERROR(Status)) {
Print(L"Error! Can't set PlatformLangCodes variable, status=%r\n", Status);
}
EDKII_VARIABLE_POLICY_PROTOCOL* VariablePolicyProtocol;
Status = gBS->LocateProtocol(&gEdkiiVariablePolicyProtocolGuid,
NULL,
(VOID**)&VariablePolicyProtocol);
if (EFI_ERROR(Status)) {
Print(L"Error! Could not find Variable Policy protocol: %r\n", Status);
return Status;
}
Status = VariablePolicyProtocol->DisableVariablePolicy();
if (EFI_ERROR(Status)) {
Print(L"Error! Can't disable VariablePolicy: %r\n", Status);
return Status;
}
return EFI_SUCCESS;
}
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