File ovmf-embed-default-keys.patch of Package ovmf
From a8b25f3a9326c9dd943fd4d790bd582e22aead80 Mon Sep 17 00:00:00 2001
From: Gary Ching-Pang Lin <glin@suse.com>
Date: Fri, 10 May 2013 10:27:51 +0800
Subject: [PATCH] Add a stub to allow keys to be embedded at build time
Signed-off-by: Gary Ching-Pang Lin <glin@suse.com>
---
.../Library/AuthVariableLib/AuthVariableLib.c | 180 +++++++++++++++++++++
.../Library/AuthVariableLib/AuthVariableLib.inf | 4 +
SecurityPkg/Library/AuthVariableLib/Default_DB.h | 2 +
SecurityPkg/Library/AuthVariableLib/Default_DBX.h | 2 +
SecurityPkg/Library/AuthVariableLib/Default_KEK.h | 2 +
SecurityPkg/Library/AuthVariableLib/Default_PK.h | 2 +
6 files changed, 192 insertions(+)
create mode 100644 SecurityPkg/Library/AuthVariableLib/Default_DB.h
create mode 100644 SecurityPkg/Library/AuthVariableLib/Default_DBX.h
create mode 100644 SecurityPkg/Library/AuthVariableLib/Default_KEK.h
create mode 100644 SecurityPkg/Library/AuthVariableLib/Default_PK.h
diff --git a/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c b/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c
index a54eaaa..3544c64 100644
--- a/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c
+++ b/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c
@@ -23,6 +23,10 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "AuthServiceInternal.h"
+#include "Default_PK.h"
+#include "Default_KEK.h"
+#include "Default_DB.h"
+#include "Default_DBX.h"
///
/// Global database array for scratch
@@ -136,6 +140,11 @@ AuthVariableLibInitialize (
UINT8 SecureBootEnable;
UINT8 CustomMode;
UINT32 ListSize;
+ EFI_SIGNATURE_LIST *SigCert;
+ EFI_SIGNATURE_DATA *SigCertData;
+ UINTN SigSize;
+ EFI_GUID *SignatureGUID;
+ UINT32 Attr;
if ((AuthVarLibContextIn == NULL) || (AuthVarLibContextOut == NULL)) {
return EFI_INVALID_PARAMETER;
@@ -152,6 +161,177 @@ AuthVariableLibInitialize (
return EFI_OUT_OF_RESOURCES;
}
+ //****
+ // Create signature list for PK KEK DB
+ Attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS |
+ EFI_VARIABLE_BOOTSERVICE_ACCESS |
+ EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;
+
+ // PK
+ if (Default_PK == NULL)
+ goto SKIP_KEYS;
+
+ Status = AuthServiceInternalFindVariable (
+ EFI_PLATFORM_KEY_NAME,
+ &gEfiGlobalVariableGuid,
+ (VOID **) &Data,
+ &DataSize
+ );
+ if (Status == EFI_NOT_FOUND) {
+ SignatureGUID = (EFI_GUID *) AllocateZeroPool (sizeof (EFI_GUID));
+ if (SignatureGUID == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ SigSize = sizeof(EFI_SIGNATURE_LIST) + sizeof(EFI_SIGNATURE_DATA) - 1 + Default_PK_len;
+ Data = AllocateZeroPool (SigSize);
+ if (Data == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ SigCert = (EFI_SIGNATURE_LIST*) Data;
+ SigCert->SignatureListSize = (UINT32) SigSize;
+ SigCert->SignatureHeaderSize = 0;
+ SigCert->SignatureSize = (UINT32) (sizeof(EFI_SIGNATURE_DATA) - 1 + Default_PK_len);
+ CopyGuid (&SigCert->SignatureType, &gEfiCertX509Guid);
+
+ SigCertData = (EFI_SIGNATURE_DATA*) ((UINT8* ) SigCert + sizeof (EFI_SIGNATURE_LIST));
+ CopyGuid (&SigCertData->SignatureOwner, SignatureGUID);
+ CopyMem ((UINT8* ) (SigCertData->SignatureData), Default_PK, Default_PK_len);
+
+ Status = AuthServiceInternalUpdateVariable (
+ EFI_PLATFORM_KEY_NAME,
+ &gEfiGlobalVariableGuid,
+ Data,
+ SigSize,
+ Attr
+ );
+ FreePool(SignatureGUID);
+ FreePool(Data);
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ // KEK
+ if (Default_KEK == NULL)
+ goto SKIP_KEYS;
+
+ Status = AuthServiceInternalFindVariable (
+ EFI_KEY_EXCHANGE_KEY_NAME,
+ &gEfiGlobalVariableGuid,
+ (VOID **) &Data,
+ &DataSize
+ );
+ if (Status == EFI_NOT_FOUND) {
+ SignatureGUID = (EFI_GUID *) AllocateZeroPool (sizeof (EFI_GUID));
+ if (SignatureGUID == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ SigSize = sizeof(EFI_SIGNATURE_LIST) + sizeof(EFI_SIGNATURE_DATA) - 1 + Default_KEK_len;
+ Data = AllocateZeroPool (SigSize);
+ if (Data == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ SigCert = (EFI_SIGNATURE_LIST*) Data;
+ SigCert->SignatureListSize = (UINT32) SigSize;
+ SigCert->SignatureHeaderSize = 0;
+ SigCert->SignatureSize = (UINT32) (sizeof(EFI_SIGNATURE_DATA) - 1 + Default_KEK_len);
+ CopyGuid (&SigCert->SignatureType, &gEfiCertX509Guid);
+
+ SigCertData = (EFI_SIGNATURE_DATA*) ((UINT8* ) SigCert + sizeof (EFI_SIGNATURE_LIST));
+ CopyGuid (&SigCertData->SignatureOwner, SignatureGUID);
+ CopyMem ((UINT8* ) (SigCertData->SignatureData), Default_KEK, Default_KEK_len);
+
+ Status = AuthServiceInternalUpdateVariable (
+ EFI_KEY_EXCHANGE_KEY_NAME,
+ &gEfiGlobalVariableGuid,
+ Data,
+ SigSize,
+ Attr
+ );
+ FreePool(SignatureGUID);
+ FreePool(Data);
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ // DB
+ if (Default_DB == NULL)
+ goto SKIP_KEYS;
+
+ Status = AuthServiceInternalFindVariable (
+ EFI_IMAGE_SECURITY_DATABASE,
+ &gEfiImageSecurityDatabaseGuid,
+ (VOID **) &Data,
+ &DataSize
+ );
+ if (Status == EFI_NOT_FOUND) {
+ SignatureGUID = (EFI_GUID *) AllocateZeroPool (sizeof (EFI_GUID));
+ if (SignatureGUID == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ SigSize = sizeof(EFI_SIGNATURE_LIST) + sizeof(EFI_SIGNATURE_DATA) - 1 + Default_DB_len;
+ Data = AllocateZeroPool (SigSize);
+ if (Data == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ SigCert = (EFI_SIGNATURE_LIST*) Data;
+ SigCert->SignatureListSize = (UINT32) SigSize;
+ SigCert->SignatureHeaderSize = 0;
+ SigCert->SignatureSize = (UINT32) (sizeof(EFI_SIGNATURE_DATA) - 1 + Default_DB_len);
+ CopyGuid (&SigCert->SignatureType, &gEfiCertX509Guid);
+
+ SigCertData = (EFI_SIGNATURE_DATA*) ((UINT8* ) SigCert + sizeof (EFI_SIGNATURE_LIST));
+ CopyGuid (&SigCertData->SignatureOwner, SignatureGUID);
+ CopyMem ((UINT8* ) (SigCertData->SignatureData), Default_DB, Default_DB_len);
+
+ Status = AuthServiceInternalUpdateVariable (
+ EFI_IMAGE_SECURITY_DATABASE,
+ &gEfiImageSecurityDatabaseGuid,
+ Data,
+ SigSize,
+ Attr
+ );
+ FreePool(SignatureGUID);
+ FreePool(Data);
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ // DBX
+ if (Default_DBX == NULL)
+ goto SKIP_KEYS;
+
+ Status = AuthServiceInternalFindVariable (
+ EFI_IMAGE_SECURITY_DATABASE1,
+ &gEfiImageSecurityDatabaseGuid,
+ (VOID **) &Data,
+ &DataSize
+ );
+ if (Status == EFI_NOT_FOUND) {
+ Status = AuthServiceInternalUpdateVariable (
+ EFI_IMAGE_SECURITY_DATABASE1,
+ &gEfiImageSecurityDatabaseGuid,
+ Default_DBX,
+ Default_DBX_len,
+ Attr
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+SKIP_KEYS:
//
// Reserve runtime buffer for public key database. The size excludes variable header and name size.
//
diff --git a/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf b/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf
index d0c0cc2..552dbb9 100644
--- a/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf
+++ b/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf
@@ -33,6 +33,10 @@ [Sources]
AuthVariableLib.c
AuthService.c
AuthServiceInternal.h
+ Default_PK.h
+ Default_KEK.h
+ Default_DB.h
+ Default_DBX.h
[Packages]
MdePkg/MdePkg.dec
diff --git a/SecurityPkg/Library/AuthVariableLib/Default_DB.h b/SecurityPkg/Library/AuthVariableLib/Default_DB.h
new file mode 100644
index 0000000..4d13894
--- /dev/null
+++ b/SecurityPkg/Library/AuthVariableLib/Default_DB.h
@@ -0,0 +1,2 @@
+unsigned char *Default_DB = NULL;
+unsigned int Default_DB_len = 0;
diff --git a/SecurityPkg/Library/AuthVariableLib/Default_DBX.h b/SecurityPkg/Library/AuthVariableLib/Default_DBX.h
new file mode 100644
index 0000000..5fd3cdc
--- /dev/null
+++ b/SecurityPkg/Library/AuthVariableLib/Default_DBX.h
@@ -0,0 +1,2 @@
+unsigned char *Default_DBX = NULL;
+unsigned int Default_DBX_len = 0;
diff --git a/SecurityPkg/Library/AuthVariableLib/Default_KEK.h b/SecurityPkg/Library/AuthVariableLib/Default_KEK.h
new file mode 100644
index 0000000..80883de
--- /dev/null
+++ b/SecurityPkg/Library/AuthVariableLib/Default_KEK.h
@@ -0,0 +1,2 @@
+unsigned char *Default_KEK = NULL;
+unsigned int Default_KEK_len = 0;
diff --git a/SecurityPkg/Library/AuthVariableLib/Default_PK.h b/SecurityPkg/Library/AuthVariableLib/Default_PK.h
new file mode 100644
index 0000000..23b90e4
--- /dev/null
+++ b/SecurityPkg/Library/AuthVariableLib/Default_PK.h
@@ -0,0 +1,2 @@
+unsigned char *Default_PK = NULL;
+unsigned int Default_PK_len = 0;
--
2.1.4
