From: "Grzegorz Bernacki" <gjb@semihalf.com>
To: devel@edk2.groups.io
Cc: leif@nuviainc.com, ardb+tianocore@kernel.org,
Samer.El-Haj-Mahmoud@arm.com, sunny.Wang@arm.com,
mw@semihalf.com, upstream@semihalf.com, jiewen.yao@intel.com,
jian.j.wang@intel.com, min.m.xu@intel.com, lersek@redhat.com,
Grzegorz Bernacki <gjb@semihalf.com>
Subject: [PATCH v2 4/6] SecurityPkg: Add EnrollFromDefaultKeys application.
Date: Tue, 1 Jun 2021 15:12:27 +0200 [thread overview]
Message-ID: <20210601131229.630611-6-gjb@semihalf.com> (raw)
In-Reply-To: <20210601131229.630611-1-gjb@semihalf.com>
This application allows user to force key enrollment from
Secure Boot default variables.
Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
---
SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.inf | 47 +++++++++
SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.c | 107 ++++++++++++++++++++
2 files changed, 154 insertions(+)
create mode 100644 SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.inf
create mode 100644 SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.c
diff --git a/SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.inf b/SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.inf
new file mode 100644
index 0000000000..4d79ca3844
--- /dev/null
+++ b/SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.inf
@@ -0,0 +1,47 @@
+## @file
+# Enroll PK, KEK, db, dbx from Default variables
+#
+# Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+# Copyright (c) 2021, Semihalf All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+ INF_VERSION = 1.28
+ BASE_NAME = EnrollFromDefaultKeysApp
+ FILE_GUID = 6F18CB2F-1293-4BC1-ABB8-35F84C71812E
+ MODULE_TYPE = UEFI_APPLICATION
+ VERSION_STRING = 0.1
+ ENTRY_POINT = UefiMain
+
+[Sources]
+ EnrollFromDefaultKeysApp.c
+
+[Packages]
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+ SecurityPkg/SecurityPkg.dec
+
+[Guids]
+ gEfiCertPkcs7Guid
+ gEfiCertSha256Guid
+ gEfiCertX509Guid
+ gEfiCustomModeEnableGuid
+ gEfiGlobalVariableGuid
+ gEfiImageSecurityDatabaseGuid
+ gEfiSecureBootEnableDisableGuid
+
+[Protocols]
+ gEfiSmbiosProtocolGuid ## CONSUMES
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ DebugLib
+ MemoryAllocationLib
+ PrintLib
+ UefiApplicationEntryPoint
+ UefiBootServicesTableLib
+ UefiLib
+ UefiRuntimeServicesTableLib
+ SecureBootVariableLib
diff --git a/SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.c b/SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.c
new file mode 100644
index 0000000000..1907ce1d4e
--- /dev/null
+++ b/SecurityPkg/EnrollFromDefaultKeysApp/EnrollFromDefaultKeysApp.c
@@ -0,0 +1,107 @@
+/** @file
+ Enroll default PK, KEK, db, dbx.
+
+Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+Copyright (c) 2021, Semihalf All rights reserved.<BR>
+
+SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <Guid/AuthenticatedVariableFormat.h> // gEfiCustomModeEnableGuid
+#include <Guid/GlobalVariable.h> // EFI_SETUP_MODE_NAME
+#include <Guid/ImageAuthentication.h> // EFI_IMAGE_SECURITY_DATABASE
+#include <Library/BaseLib.h> // GUID_STRING_LENGTH
+#include <Library/BaseMemoryLib.h> // CopyGuid()
+#include <Library/DebugLib.h> // ASSERT()
+#include <Library/MemoryAllocationLib.h> // FreePool()
+#include <Library/PrintLib.h> // AsciiSPrint()
+#include <Library/UefiBootServicesTableLib.h> // gBS
+#include <Library/UefiLib.h> // AsciiPrint()
+#include <Library/UefiRuntimeServicesTableLib.h> // gRT
+#include <Uefi/UefiMultiPhase.h>
+#include <Library/SecureBootVariableLib.h>
+
+#define FAIL(fmt...) AsciiPrint("EnrollFromDefaultKeysApp: " fmt)
+
+/**
+ Entry point function of this shell application.
+**/
+EFI_STATUS
+EFIAPI
+UefiMain (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ UINT8 SetupMode;
+
+ Status = GetSetupMode (&SetupMode);
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot get SetupMode variable: %r\n", Status);
+ return 1;
+ }
+
+ if (SetupMode == USER_MODE) {
+ FAIL ("Skipped - USER_MODE\n");
+ return 1;
+ }
+
+ Status = SetSecureBootMode (CUSTOM_SECURE_BOOT_MODE);
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot set CUSTOM_SECURE_BOOT_MODE: %r\n", Status);
+ return 1;
+ }
+
+ Status = EnrollDbFromDefault ();
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot enroll db: %r\n", Status);
+ goto error;
+ }
+
+ Status = EnrollDbxFromDefault ();
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot enroll dbt: %r\n", Status);
+ }
+
+ Status = EnrollDbtFromDefault ();
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot enroll dbx: %r\n", Status);
+ }
+
+ Status = EnrollKEKFromDefault ();
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot enroll KEK: %r\n", Status);
+ goto cleardbs;
+ }
+
+ Status = EnrollPKFromDefault ();
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot enroll PK: %r\n", Status);
+ goto clearKEK;
+ }
+
+ Status = SetSecureBootMode (STANDARD_SECURE_BOOT_MODE);
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot set CustomMode to STANDARD_SECURE_BOOT_MODE\n"
+ "Please do it manually, otherwise system can be easily compromised\n");
+ }
+ return 0;
+
+clearKEK:
+ DeleteKEK ();
+
+cleardbs:
+ DeleteDbt ();
+ DeleteDbx ();
+ DeleteDb ();
+
+error:
+ Status = SetSecureBootMode (STANDARD_SECURE_BOOT_MODE);
+ if (EFI_ERROR (Status)) {
+ FAIL ("Cannot set CustomMode to STANDARD_SECURE_BOOT_MODE\n"
+ "Please do it manually, otherwise system can be easily compromised\n");
+ }
+
+ return 1;
+}
--
2.25.1
next prev parent reply other threads:[~2021-06-01 13:12 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-01 13:12 [PATCH v2 0/6] Secure Boot default keys Grzegorz Bernacki
2021-06-01 13:12 ` [edk2-platforms PATCH v2] Platform/RaspberryPi: Enable default Secure Boot variables initialization Grzegorz Bernacki
2021-06-02 17:40 ` [edk2-devel] " Pete Batard
2021-06-04 8:35 ` Sunny Wang
2021-07-08 18:37 ` Samer El-Haj-Mahmoud
2021-06-01 13:12 ` [PATCH v2 1/6] SecurityPkg: Create library for setting Secure Boot variables Grzegorz Bernacki
2021-06-02 17:39 ` [edk2-devel] " Pete Batard
2021-06-02 19:43 ` [EXTERNAL] " Bret Barkelew
2021-06-03 6:56 ` Min Xu
2021-06-04 7:49 ` Sunny Wang
2021-06-01 13:12 ` [PATCH v2 2/6] SecurityPkg: Create include file for default key content Grzegorz Bernacki
2021-06-02 17:39 ` [edk2-devel] " Pete Batard
2021-06-03 7:06 ` Min Xu
2021-06-04 8:11 ` Sunny Wang
2021-06-01 13:12 ` [PATCH v2 3/6] SecurityPkg: Add SecureBootDefaultKeysDxe driver Grzegorz Bernacki
2021-06-02 17:39 ` [edk2-devel] " Pete Batard
2021-06-04 8:02 ` Min Xu
2021-06-04 8:15 ` Sunny Wang
2021-06-01 13:12 ` Grzegorz Bernacki [this message]
2021-06-02 17:40 ` [edk2-devel] [PATCH v2 4/6] SecurityPkg: Add EnrollFromDefaultKeys application Pete Batard
2021-06-02 19:38 ` [EXTERNAL] " Bret Barkelew
2021-06-04 8:24 ` Sunny Wang
2021-06-01 13:12 ` [PATCH v2 5/6] SecurityPkg: Add new modules to Security package Grzegorz Bernacki
2021-06-02 17:40 ` [edk2-devel] " Pete Batard
2021-06-04 8:09 ` Min Xu
2021-06-04 8:26 ` Sunny Wang
2021-06-01 13:12 ` [PATCH v2 6/6] SecurityPkg: Add option to reset secure boot keys Grzegorz Bernacki
2021-06-02 17:40 ` [edk2-devel] " Pete Batard
2021-06-04 8:30 ` Sunny Wang
2021-06-04 8:17 ` [PATCH v2 0/6] Secure Boot default keys Min Xu
2021-06-07 7:29 ` Grzegorz Bernacki
2021-06-14 9:47 ` Grzegorz Bernacki
2021-06-17 1:30 ` [edk2-devel] " Min Xu
2021-06-17 12:54 ` Grzegorz Bernacki
2021-06-17 13:37 ` Min Xu
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