From 905ebbbf91f2923612ae4d85b9f440e1955c8837 Mon Sep 17 00:00:00 2001
From: Konstantin Aladyshev <aladyshev22@gmail.com>
Date: Tue, 9 Nov 2021 18:25:39 +0300
Subject: Add lesson 55
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
---
.../UefiLessonsPkg/AddNewLanguage/AddNewLanguage.c | 71 ++++++++++++++++++++++
.../AddNewLanguage/AddNewLanguage.inf | 27 ++++++++
2 files changed, 98 insertions(+)
create mode 100644 Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage/AddNewLanguage.c
create mode 100644 Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage/AddNewLanguage.inf
(limited to 'Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage')
diff --git a/Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage/AddNewLanguage.c b/Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage/AddNewLanguage.c
new file mode 100644
index 0000000..cd4920d
--- /dev/null
+++ b/Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage/AddNewLanguage.c
@@ -0,0 +1,71 @@
+/*
+ * 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;
+}
diff --git a/Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage/AddNewLanguage.inf b/Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage/AddNewLanguage.inf
new file mode 100644
index 0000000..1a34438
--- /dev/null
+++ b/Lessons/Lesson_55/UefiLessonsPkg/AddNewLanguage/AddNewLanguage.inf
@@ -0,0 +1,27 @@
+##
+# Copyright (c) 2021, Konstantin Aladyshev <aladyshev22@gmail.com>
+#
+# SPDX-License-Identifier: MIT
+##
+
+[Defines]
+ INF_VERSION = 1.25
+ BASE_NAME = AddNewLanguage
+ FILE_GUID = 6790e268-0762-4ce8-8999-2ff2131e6512
+ MODULE_TYPE = UEFI_APPLICATION
+ VERSION_STRING = 1.0
+ ENTRY_POINT = UefiMain
+
+[Sources]
+ AddNewLanguage.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+ UefiApplicationEntryPoint
+ UefiLib
+
+[Protocols]
+ gEdkiiVariablePolicyProtocolGuid
--
cgit v1.2.3-18-g5258