diff options
Diffstat (limited to 'MdeModulePkg/Universal/SectionExtractionDxe')
| -rw-r--r-- | MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.c | 280 | ||||
| -rw-r--r-- | MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf | 48 | ||||
| -rw-r--r-- | MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxeExtra.uni | bin | 0 -> 1368 bytes | |||
| -rw-r--r-- | MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxeModStrs.uni | bin | 0 -> 1790 bytes |
4 files changed, 328 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.c b/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.c new file mode 100644 index 0000000..0cdfdef --- /dev/null +++ b/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.c @@ -0,0 +1,280 @@ +/** @file
+ Section Extraction DXE Driver
+
+Copyright (c) 2013 - 2014, 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
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiDxe.h>
+#include <Protocol/GuidedSectionExtraction.h>
+#include <Library/DebugLib.h>
+#include <Library/ExtractGuidedSectionLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+
+//
+// Function prototype for Section Extraction Protocol service
+//
+EFI_STATUS
+EFIAPI
+CustomGuidedSectionExtract (
+ IN CONST EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL *This,
+ IN CONST VOID *InputSection,
+ OUT VOID **OutputBuffer,
+ OUT UINTN *OutputSize,
+ OUT UINT32 *AuthenticationStatus
+ );
+
+//
+// Module global for the Section Extraction Protocol handle
+//
+EFI_HANDLE mSectionExtractionHandle = NULL;
+
+//
+// Module global for the Section Extraction Protocol instance
+//
+EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL mCustomGuidedSectionExtractionProtocol = {
+ CustomGuidedSectionExtract
+};
+
+/**
+ The ExtractSection() function processes the input section and
+ allocates a buffer from the pool in which it returns the section
+ contents. If the section being extracted contains
+ authentication information (the section's
+ GuidedSectionHeader.Attributes field has the
+ EFI_GUIDED_SECTION_AUTH_STATUS_VALID bit set), the values
+ returned in AuthenticationStatus must reflect the results of
+ the authentication operation. Depending on the algorithm and
+ size of the encapsulated data, the time that is required to do
+ a full authentication may be prohibitively long for some
+ classes of systems. To indicate this, use
+ EFI_SECURITY_POLICY_PROTOCOL_GUID, which may be published by
+ the security policy driver (see the Platform Initialization
+ Driver Execution Environment Core Interface Specification for
+ more details and the GUID definition). If the
+ EFI_SECURITY_POLICY_PROTOCOL_GUID exists in the handle
+ database, then, if possible, full authentication should be
+ skipped and the section contents simply returned in the
+ OutputBuffer. In this case, the
+ EFI_AUTH_STATUS_PLATFORM_OVERRIDE bit AuthenticationStatus
+ must be set on return. ExtractSection() is callable only from
+ TPL_NOTIFY and below. Behavior of ExtractSection() at any
+ EFI_TPL above TPL_NOTIFY is undefined. Type EFI_TPL is
+ defined in RaiseTPL() in the UEFI 2.0 specification.
+
+
+ @param This Indicates the
+ EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL instance.
+ @param InputSection Buffer containing the input GUIDed section
+ to be processed. OutputBuffer OutputBuffer
+ is allocated from boot services pool
+ memory and contains the new section
+ stream. The caller is responsible for
+ freeing this buffer.
+ @param OutputBuffer *OutputBuffer is allocated from boot services
+ pool memory and contains the new section stream.
+ The caller is responsible for freeing this buffer.
+ @param OutputSize A pointer to a caller-allocated UINTN in
+ which the size of OutputBuffer allocation
+ is stored. If the function returns
+ anything other than EFI_SUCCESS, the value
+ of OutputSize is undefined.
+
+ @param AuthenticationStatus A pointer to a caller-allocated
+ UINT32 that indicates the
+ authentication status of the
+ output buffer. If the input
+ section's
+ GuidedSectionHeader.Attributes
+ field has the
+ EFI_GUIDED_SECTION_AUTH_STATUS_VAL
+ bit as clear, AuthenticationStatus
+ must return zero. Both local bits
+ (19:16) and aggregate bits (3:0)
+ in AuthenticationStatus are
+ returned by ExtractSection().
+ These bits reflect the status of
+ the extraction operation. The bit
+ pattern in both regions must be
+ the same, as the local and
+ aggregate authentication statuses
+ have equivalent meaning at this
+ level. If the function returns
+ anything other than EFI_SUCCESS,
+ the value of AuthenticationStatus
+ is undefined.
+
+
+ @retval EFI_SUCCESS The InputSection was successfully
+ processed and the section contents were
+ returned.
+
+ @retval EFI_OUT_OF_RESOURCES The system has insufficient
+ resources to process the
+ request.
+
+ @retval EFI_INVALID_PARAMETER The GUID in InputSection does
+ not match this instance of the
+ GUIDed Section Extraction
+ Protocol.
+
+**/
+EFI_STATUS
+EFIAPI
+CustomGuidedSectionExtract (
+ IN CONST EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL *This,
+ IN CONST VOID *InputSection,
+ OUT VOID **OutputBuffer,
+ OUT UINTN *OutputSize,
+ OUT UINT32 *AuthenticationStatus
+ )
+{
+ EFI_STATUS Status;
+ VOID *ScratchBuffer;
+ VOID *AllocatedOutputBuffer;
+ UINT32 OutputBufferSize;
+ UINT32 ScratchBufferSize;
+ UINT16 SectionAttribute;
+
+ //
+ // Init local variable
+ //
+ ScratchBuffer = NULL;
+ AllocatedOutputBuffer = NULL;
+
+ //
+ // Call GetInfo to get the size and attribute of input guided section data.
+ //
+ Status = ExtractGuidedSectionGetInfo (
+ InputSection,
+ &OutputBufferSize,
+ &ScratchBufferSize,
+ &SectionAttribute
+ );
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "GetInfo from guided section Failed - %r\n", Status));
+ return Status;
+ }
+
+ if (ScratchBufferSize > 0) {
+ //
+ // Allocate scratch buffer
+ //
+ ScratchBuffer = AllocatePool (ScratchBufferSize);
+ if (ScratchBuffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ }
+
+ if (OutputBufferSize > 0) {
+ //
+ // Allocate output buffer
+ //
+ AllocatedOutputBuffer = AllocatePool (OutputBufferSize);
+ if (AllocatedOutputBuffer == NULL) {
+ FreePool (ScratchBuffer);
+ return EFI_OUT_OF_RESOURCES;
+ }
+ *OutputBuffer = AllocatedOutputBuffer;
+ }
+
+ //
+ // Call decode function to extract raw data from the guided section.
+ //
+ Status = ExtractGuidedSectionDecode (
+ InputSection,
+ OutputBuffer,
+ ScratchBuffer,
+ AuthenticationStatus
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // Decode failed
+ //
+ if (AllocatedOutputBuffer != NULL) {
+ FreePool (AllocatedOutputBuffer);
+ }
+ if (ScratchBuffer != NULL) {
+ FreePool (ScratchBuffer);
+ }
+ DEBUG ((DEBUG_ERROR, "Extract guided section Failed - %r\n", Status));
+ return Status;
+ }
+
+ if (*OutputBuffer != AllocatedOutputBuffer) {
+ //
+ // OutputBuffer was returned as a different value,
+ // so copy section contents to the allocated memory buffer.
+ //
+ CopyMem (AllocatedOutputBuffer, *OutputBuffer, OutputBufferSize);
+ *OutputBuffer = AllocatedOutputBuffer;
+ }
+
+ //
+ // Set real size of output buffer.
+ //
+ *OutputSize = (UINTN) OutputBufferSize;
+
+ //
+ // Free unused scratch buffer.
+ //
+ if (ScratchBuffer != NULL) {
+ FreePool (ScratchBuffer);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Main entry for the Section Extraction DXE module.
+
+ This routine registers the Section Extraction Protocols that have been registered
+ with the Section Extraction Library.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+SectionExtractionDxeEntry (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_GUID *ExtractHandlerGuidTable;
+ UINTN ExtractHandlerNumber;
+
+ //
+ // Get custom extract guided section method guid list
+ //
+ ExtractHandlerNumber = ExtractGuidedSectionGetGuidList (&ExtractHandlerGuidTable);
+
+ //
+ // Install custom guided extraction protocol
+ //
+ while (ExtractHandlerNumber-- > 0) {
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &mSectionExtractionHandle,
+ &ExtractHandlerGuidTable [ExtractHandlerNumber], &mCustomGuidedSectionExtractionProtocol,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ return EFI_SUCCESS;
+}
diff --git a/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf b/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf new file mode 100644 index 0000000..dfabe23 --- /dev/null +++ b/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxe.inf @@ -0,0 +1,48 @@ +## @file
+# Section Extraction DXE Driver
+#
+# Copyright (c) 2013 - 2014, 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
+# http://opensource.org/licenses/bsd-license.php
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = SectionExtractionDxe
+ FILE_GUID = A0E8E04C-9B5A-43be-8B7D-C98760492B68
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = SectionExtractionDxeEntry
+ MODULE_UNI_FILE = SectionExtractionDxeModStrs.uni
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ SectionExtractionDxe.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ UefiDriverEntryPoint
+ UefiBootServicesTableLib
+ DebugLib
+ BaseMemoryLib
+ MemoryAllocationLib
+ ExtractGuidedSectionLib
+
+[Depex]
+ TRUE
+
+[UserExtensions.TianoCore."ExtraFiles"]
+ SectionExtractionDxeExtra.uni
diff --git a/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxeExtra.uni b/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxeExtra.uni Binary files differnew file mode 100644 index 0000000..3584435 --- /dev/null +++ b/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxeExtra.uni diff --git a/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxeModStrs.uni b/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxeModStrs.uni Binary files differnew file mode 100644 index 0000000..66c413e --- /dev/null +++ b/MdeModulePkg/Universal/SectionExtractionDxe/SectionExtractionDxeModStrs.uni |