SecurityPkg Variable: Introduce PcdReclaimVariableSpaceAtEndOfDxe

[mirror_edk2.git] / SecurityPkg / VariableAuthenticated / RuntimeDxe / VariableDxe.c

diff --git a/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableDxe.c b/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableDxe.c
index 1d71e4f800d932b4e8722b9567820056d450468d..05a90fa8fcd1d91ac0ebf8f9f38552aff0c87f82 100644 (file)
--- a/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableDxe.c
+++ b/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableDxe.c
@@ -3,7 +3,7 @@
   and volatile storage space and install variable architecture protocol.\r
 \r
 Copyright (C) 2013, Red Hat, Inc.\r
-Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -23,8 +23,14 @@ EFI_HANDLE                     mHandle                    = NULL;
 EFI_EVENT                      mVirtualAddressChangeEvent = NULL;\r
 EFI_EVENT                      mFtwRegistration           = NULL;\r
 extern LIST_ENTRY              mLockedVariableList;\r
+extern LIST_ENTRY              mVarCheckVariableList;\r
+extern UINT32                  mNumberOfHandler;\r
+extern VAR_CHECK_SET_VARIABLE_CHECK_HANDLER *mHandlerTable;\r
 extern BOOLEAN                 mEndOfDxe;\r
 EDKII_VARIABLE_LOCK_PROTOCOL   mVariableLock              = { VariableLockRequestToLock };\r
+EDKII_VAR_CHECK_PROTOCOL       mVarCheck                  = { VarCheckRegisterSetVariableCheckHandler,\r
+                                                              VarCheckVariablePropertySet,\r
+                                                              VarCheckVariablePropertyGet };\r
 \r
 /**\r
   Return TRUE if ExitBootServices () has been called.\r
@@ -222,9 +228,8 @@ VariableClassAddressChangeEvent (
   IN VOID                                 *Context\r
   )\r
 {\r
-  LIST_ENTRY     *Link;\r
-  VARIABLE_ENTRY *Entry;\r
   EFI_STATUS     Status;\r
+  UINTN          Index;\r
 \r
   EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->FvbInstance->GetBlockSize);\r
   EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->FvbInstance->GetPhysicalAddress);\r
@@ -239,27 +244,23 @@ VariableClassAddressChangeEvent (
   EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->PlatformLang);\r
   EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->VariableGlobal.NonVolatileVariableBase);\r
   EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->VariableGlobal.VolatileVariableBase);\r
+  EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->VariableGlobal.HobVariableBase);\r
   EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal);\r
   EfiConvertPointer (0x0, (VOID **) &mHashCtx);\r
   EfiConvertPointer (0x0, (VOID **) &mSerializationRuntimeBuffer);\r
   EfiConvertPointer (0x0, (VOID **) &mNvVariableCache);\r
-\r
-  //\r
-  // in the list of locked variables, convert the name pointers first\r
-  //\r
-  for ( Link = GetFirstNode (&mLockedVariableList)\r
-      ; !IsNull (&mLockedVariableList, Link)\r
-      ; Link = GetNextNode (&mLockedVariableList, Link)\r
-      ) {\r
-    Entry = BASE_CR (Link, VARIABLE_ENTRY, Link);\r
-    Status = EfiConvertPointer (0x0, (VOID **) &Entry->Name);\r
-    ASSERT_EFI_ERROR (Status);\r
+  EfiConvertPointer (0x0, (VOID **) &mPubKeyStore);\r
+  EfiConvertPointer (0x0, (VOID **) &mCertDbStore);\r
+  EfiConvertPointer (0x0, (VOID **) &mHandlerTable);\r
+  for (Index = 0; Index < mNumberOfHandler; Index++) {\r
+    EfiConvertPointer (0x0, (VOID **) &mHandlerTable[Index]);\r
   }\r
-  //\r
-  // second, convert the list itself using UefiRuntimeLib\r
-  //\r
+\r
   Status = EfiConvertList (0x0, &mLockedVariableList);\r
   ASSERT_EFI_ERROR (Status);\r
+\r
+  Status = EfiConvertList (0x0, &mVarCheckVariableList);\r
+  ASSERT_EFI_ERROR (Status);\r
 }\r
 \r
 \r
@@ -285,6 +286,10 @@ OnReadyToBoot (
   // Set the End Of DXE bit in case the EFI_END_OF_DXE_EVENT_GROUP_GUID event is not signaled.\r
   //\r
   mEndOfDxe = TRUE;\r
+  //\r
+  // The initialization for variable quota.\r
+  //\r
+  InitializeVariableQuota ();\r
   ReclaimForOS ();\r
   if (FeaturePcdGet (PcdVariableCollectStatistics)) {\r
     gBS->InstallConfigurationTable (&gEfiAuthenticatedVariableGuid, gVariableInfo);\r
@@ -308,6 +313,13 @@ OnEndOfDxe (
   )\r
 {\r
   mEndOfDxe = TRUE;\r
+  //\r
+  // The initialization for variable quota.\r
+  //\r
+  InitializeVariableQuota ();\r
+  if (PcdGetBool (PcdReclaimVariableSpaceAtEndOfDxe)) {\r
+    ReclaimForOS ();\r
+  }\r
 }\r
 \r
 /**\r
@@ -367,7 +379,7 @@ FtwNotificationEvent (
   //\r
   // Mark the variable storage region of the FLASH as RUNTIME.\r
   //\r
-  VariableStoreBase   = mVariableModuleGlobal->VariableGlobal.NonVolatileVariableBase;\r
+  VariableStoreBase   = NvStorageVariableBase + (((EFI_FIRMWARE_VOLUME_HEADER *)(UINTN)(NvStorageVariableBase))->HeaderLength);\r
   VariableStoreLength = ((VARIABLE_STORE_HEADER *)(UINTN)VariableStoreBase)->Size;\r
   BaseAddress = VariableStoreBase & (~EFI_PAGE_MASK);\r
   Length      = VariableStoreLength + (VariableStoreBase - BaseAddress);\r
@@ -375,7 +387,7 @@ FtwNotificationEvent (
 \r
   Status      = gDS->GetMemorySpaceDescriptor (BaseAddress, &GcdDescriptor);\r
   if (EFI_ERROR (Status)) {\r
-    DEBUG ((DEBUG_WARN, "Variable driver failed to add EFI_MEMORY_RUNTIME attribute to Flash.\n"));\r
+    DEBUG ((DEBUG_WARN, "Variable driver failed to get flash memory attribute.\n"));\r
   } else {\r
     Status = gDS->SetMemorySpaceAttributes (\r
                     BaseAddress,\r
@@ -388,7 +400,9 @@ FtwNotificationEvent (
   }\r
 \r
   Status = VariableWriteServiceInitialize ();\r
-  ASSERT_EFI_ERROR (Status);\r
+  if (EFI_ERROR (Status)) {\r
+    DEBUG ((DEBUG_ERROR, "Variable write service initialization failed. Status = %r\n", Status));\r
+  }\r
 \r
   //\r
   // Install the Variable Write Architectural protocol.\r
@@ -443,6 +457,14 @@ VariableServiceInitialize (
                   );\r
   ASSERT_EFI_ERROR (Status);\r
 \r
+  Status = gBS->InstallMultipleProtocolInterfaces (\r
+                  &mHandle,\r
+                  &gEdkiiVarCheckProtocolGuid,\r
+                  &mVarCheck,\r
+                  NULL\r
+                  );\r
+  ASSERT_EFI_ERROR (Status);\r
+\r
   SystemTable->RuntimeServices->GetVariable         = VariableServiceGetVariable;\r
   SystemTable->RuntimeServices->GetNextVariableName = VariableServiceGetNextVariableName;\r
   SystemTable->RuntimeServices->SetVariable         = VariableServiceSetVariable;\r