diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Universal/SectionExtractionDxe')
| -rw-r--r-- | IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtraction.c | 57 | ||||
| -rw-r--r-- | IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf | 3 |
2 files changed, 54 insertions, 6 deletions
diff --git a/IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtraction.c b/IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtraction.c index 86bf2be632..dfe3070268 100644 --- a/IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtraction.c +++ b/IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtraction.c @@ -45,6 +45,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include <Library/UefiBootServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/BaseMemoryLib.h>
+#include <Library/UefiLib.h>
#include <Protocol/Decompress.h>
#include <Protocol/GuidedSectionExtraction.h>
#include <Protocol/SectionExtraction.h>
@@ -540,6 +541,53 @@ CreateProtocolNotifyEvent ( }
/**
+ Verify the Guided Section GUID by checking if there is the Guided Section GUID configuration table recorded the GUID itself.
+
+ @param GuidedSectionGuid The Guided Section GUID.
+ @param GuidedSectionExtraction A pointer to the pointer to the supported Guided Section Extraction Protocol
+ for the Guided Section.
+
+ @return TRUE The GuidedSectionGuid could be identified, and the pointer to
+ the Guided Section Extraction Protocol will be returned to *GuidedSectionExtraction.
+ @return FALSE The GuidedSectionGuid could not be identified, or
+ the Guided Section Extraction Protocol has not been installed yet.
+
+**/
+BOOLEAN
+VerifyGuidedSectionGuid (
+ IN EFI_GUID *GuidedSectionGuid,
+ OUT EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL **GuidedSectionExtraction
+ )
+{
+ EFI_GUID *GuidRecorded;
+ VOID *Interface;
+ EFI_STATUS Status;
+
+ //
+ // Check if there is the Guided Section GUID configuration table recorded the GUID itself.
+ //
+ Status = EfiGetSystemConfigurationTable (GuidedSectionGuid, (VOID **) &GuidRecorded);
+ if (Status == EFI_SUCCESS) {
+ if (CompareGuid (GuidRecorded, GuidedSectionGuid)) {
+ //
+ // Found the recorded GuidedSectionGuid.
+ //
+ Status = gBS->LocateProtocol (GuidedSectionGuid, NULL, (VOID **) &Interface);
+ if (!EFI_ERROR (Status) && Interface != NULL) {
+ //
+ // Found the supported Guided Section Extraction Porotocol for the Guided Section.
+ //
+ *GuidedSectionExtraction = (EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL *) Interface;
+ return TRUE;
+ }
+ return FALSE;
+ }
+ }
+
+ return FALSE;
+}
+
+/**
RPN callback function.
1. Initialize the section stream when the GUIDED_SECTION_EXTRACTION_PROTOCOL is installed.
2. Removes a stale section stream and re-initializes it with an updated AuthenticationStatus.
@@ -579,10 +627,10 @@ NotifyGuidedExtraction ( (Context->ParentStream->StreamBuffer + Context->ChildNode->OffsetInStream);
ASSERT (GuidedHeader->CommonHeader.Type == EFI_SECTION_GUID_DEFINED);
- Status = gBS->LocateProtocol (Context->ChildNode->EncapsulationGuid, NULL, (VOID **)&GuidedExtraction);
- ASSERT_EFI_ERROR (Status);
+ if (!VerifyGuidedSectionGuid (Context->ChildNode->EncapsulationGuid, &GuidedExtraction)) {
+ return;
+ }
-
Status = GuidedExtraction->ExtractSection (
GuidedExtraction,
GuidedHeader,
@@ -842,8 +890,7 @@ CreateChildNode ( Node->EncapsulationGuid = &GuidedHeader->SectionDefinitionGuid;
GuidedSectionAttributes = GuidedHeader->Attributes;
}
- Status = gBS->LocateProtocol (Node->EncapsulationGuid, NULL, (VOID **)&GuidedExtraction);
- if (!EFI_ERROR (Status)) {
+ if (VerifyGuidedSectionGuid (Node->EncapsulationGuid, &GuidedExtraction)) {
//
// NewStreamBuffer is always allocated by ExtractSection... No caller
// allocation here.
diff --git a/IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf b/IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf index 487f4a2846..5353149ebe 100644 --- a/IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf +++ b/IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf @@ -6,7 +6,7 @@ # where each stream contains a linked list of children, which may be leaves or
# encapsulations. Encapsulation section will further generate new section stream entries.
#
-# Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
@@ -40,6 +40,7 @@ BaseLib
BaseMemoryLib
UefiDriverEntryPoint
+ UefiLib
[Packages]
MdePkg/MdePkg.dec
|