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Enhance FV2.ReadSection() to read GUIDED section raw data when its extraction guided protocol doesn’t exist. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10703 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lgao4 2010-07-28 01:12:22 +00:00
parent 1d6ee65f82
commit ab58ce18aa
1 changed files with 52 additions and 40 deletions
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30
IntelFrameworkModulePkg/Universal/SectionExtractionDxe/SectionExtraction.c
View File

@ -528,8 +528,9 @@ CreateProtocolNotifyEvent (
}
/**
RPN callback function. Removes a stale section stream and re-initializes it
with an updated AuthenticationStatus.
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.
@param Event The event that fired
@param RpnContext A pointer to the context that allows us to identify
@ -552,11 +553,14 @@ NotifyGuidedExtraction (
RPN_EVENT_CONTEXT *Context;
Context = RpnContext;
Status = EFI_SUCCESS;
if (Context->ChildNode->EncapsulatedStreamHandle != NULL_STREAM_HANDLE) {
Status = CloseSectionStream (&mSectionExtraction, Context->ChildNode->EncapsulatedStreamHandle);
}
if (!EFI_ERROR (Status)) {
//
// The stream closed successfully, so re-open the stream with correct AuthenticationStatus
// The stream is not initialized, open it.
// Or the stream closed successfully, so re-open the stream with correct AuthenticationStatus.
//
GuidedHeader = (EFI_GUID_DEFINED_SECTION *)
@ -839,12 +843,12 @@ CreateChildNode (
//
if ((GuidedHeader->Attributes & EFI_GUIDED_SECTION_PROCESSING_REQUIRED) == EFI_GUIDED_SECTION_PROCESSING_REQUIRED) {
//
// If the section REQUIRES an extraction protocol, then we're toast
// If the section REQUIRES an extraction protocol, register for RPN
// when the required GUIDed extraction protocol becomes available.
//
FreePool (*ChildNode);
return EFI_PROTOCOL_ERROR;
}
AuthenticationStatus = 0;
CreateGuidedExtractionRpnEvent (Stream, Node);
} else {
//
// Figure out the proper authentication status
//
@ -880,6 +884,7 @@ CreateChildNode (
return Status;
}
}
}
if ((AuthenticationStatus & EFI_LOCAL_AUTH_STATUS_ALL) ==
(EFI_LOCAL_AUTH_STATUS_IMAGE_SIGNED | EFI_LOCAL_AUTH_STATUS_NOT_TESTED)) {
@ -1026,6 +1031,13 @@ FindChildNode (
} else {
ErrorStatus = Status;
}
} else if ((CurrentChildNode->Type == EFI_SECTION_GUID_DEFINED) && (SearchType != EFI_SECTION_GUID_DEFINED)) {
//
// When Node Type is GUIDED section, but Node has no encapsulated data, Node data should not be parsed
// because a required GUIDED section extraction protocol does not exist.
// If SearchType is not GUIDED section, EFI_PROTOCOL_ERROR should return.
//
ErrorStatus = EFI_PROTOCOL_ERROR;
}
if (!IsNodeAtEnd (&SourceStream->Children, &CurrentChildNode->Link)) {