Add UEFI2.5 HASH protocol implementation.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: "Yao, Jiewen" <Jiewen.Yao@intel.com> Reviewed-by: "Long, Qin" <Qin.Long@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17288 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Yao, Jiewen
jyao1
242
SecurityPkg/Hash2DxeCrypto/Driver.c
Normal file
242
SecurityPkg/Hash2DxeCrypto/Driver.c
Normal file
@@ -0,0 +1,242 @@
|
||||
/** @file
|
||||
This is service binding for Hash driver.
|
||||
|
||||
Copyright (c) 2015, 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 that 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 "Driver.h"
|
||||
|
||||
EFI_SERVICE_BINDING_PROTOCOL mHash2ServiceBindingProtocol = {
|
||||
Hash2ServiceBindingCreateChild,
|
||||
Hash2ServiceBindingDestroyChild
|
||||
};
|
||||
|
||||
/**
|
||||
Creates a child handle with a set of I/O services.
|
||||
|
||||
@param[in] This Protocol instance pointer.
|
||||
@param[in, out] ChildHandle Pointer to the handle of the child to create. If
|
||||
it is NULL, then a new handle is created. If
|
||||
it is not NULL, then the I/O services are added
|
||||
to the existing child handle.
|
||||
|
||||
@retval EFI_SUCCES The protocol was added to ChildHandle.
|
||||
@retval EFI_INVALID_PARAMETER ChildHandle is NULL.
|
||||
@retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to
|
||||
create the child.
|
||||
@retval Others The child handle was not created.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
Hash2ServiceBindingCreateChild (
|
||||
IN EFI_SERVICE_BINDING_PROTOCOL *This,
|
||||
IN OUT EFI_HANDLE *ChildHandle
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
HASH2_SERVICE_DATA *Hash2ServiceData;
|
||||
HASH2_INSTANCE_DATA *Instance;
|
||||
EFI_TPL OldTpl;
|
||||
|
||||
if ((This == NULL) || (ChildHandle == NULL)) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
Hash2ServiceData = HASH2_SERVICE_DATA_FROM_THIS (This);
|
||||
|
||||
//
|
||||
// Allocate buffer for the new instance.
|
||||
//
|
||||
Instance = AllocateZeroPool (sizeof (HASH2_INSTANCE_DATA));
|
||||
if (Instance == NULL) {
|
||||
return EFI_OUT_OF_RESOURCES;
|
||||
}
|
||||
|
||||
//
|
||||
// Init the instance data.
|
||||
//
|
||||
Instance->Signature = HASH2_INSTANCE_DATA_SIGNATURE;
|
||||
CopyMem (&Instance->Hash2Protocol, &mHash2Protocol, sizeof (Instance->Hash2Protocol));
|
||||
Instance->Hash2ServiceData = Hash2ServiceData;
|
||||
|
||||
Status = gBS->InstallMultipleProtocolInterfaces (
|
||||
ChildHandle,
|
||||
&gEfiHash2ProtocolGuid,
|
||||
&Instance->Hash2Protocol,
|
||||
NULL
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
FreePool (Instance);
|
||||
return Status;
|
||||
}
|
||||
|
||||
Instance->Handle = *ChildHandle;
|
||||
|
||||
//
|
||||
// Add the child instance into ChildrenList.
|
||||
//
|
||||
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
|
||||
|
||||
InsertTailList (&Hash2ServiceData->ChildrenList, &Instance->InstEntry);
|
||||
|
||||
gBS->RestoreTPL (OldTpl);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Destroys a child handle with a set of I/O services.
|
||||
|
||||
The DestroyChild() function does the opposite of CreateChild(). It removes a
|
||||
protocol that was installed by CreateChild() from ChildHandle. If the removed
|
||||
protocol is the last protocol on ChildHandle, then ChildHandle is destroyed.
|
||||
|
||||
@param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL
|
||||
instance.
|
||||
@param[in] ChildHandle Handle of the child to destroy.
|
||||
|
||||
@retval EFI_SUCCES The protocol was removed from ChildHandle.
|
||||
@retval EFI_UNSUPPORTED ChildHandle does not support the protocol that
|
||||
is being removed.
|
||||
@retval EFI_INVALID_PARAMETER ChildHandle is NULL.
|
||||
@retval EFI_ACCESS_DENIED The protocol could not be removed from the
|
||||
ChildHandle because its services are being
|
||||
used.
|
||||
@retval Others The child handle was not destroyed.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
Hash2ServiceBindingDestroyChild (
|
||||
IN EFI_SERVICE_BINDING_PROTOCOL *This,
|
||||
IN EFI_HANDLE ChildHandle
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
HASH2_SERVICE_DATA *Hash2ServiceData;
|
||||
EFI_HASH2_PROTOCOL *Hash2Protocol;
|
||||
HASH2_INSTANCE_DATA *Instance;
|
||||
EFI_TPL OldTpl;
|
||||
LIST_ENTRY *Entry;
|
||||
|
||||
if ((This == NULL) || (ChildHandle == NULL)) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
Hash2ServiceData = HASH2_SERVICE_DATA_FROM_THIS (This);
|
||||
|
||||
//
|
||||
// Check if this ChildHandle is valid
|
||||
//
|
||||
Instance = NULL;
|
||||
for(Entry = (&Hash2ServiceData->ChildrenList)->ForwardLink; Entry != (&Hash2ServiceData->ChildrenList); Entry = Entry->ForwardLink) {
|
||||
Instance = HASH2_INSTANCE_DATA_FROM_LINK (Entry);
|
||||
if (Instance->Handle == ChildHandle) {
|
||||
break;
|
||||
} else {
|
||||
Instance = NULL;
|
||||
}
|
||||
}
|
||||
if (Instance == NULL) {
|
||||
DEBUG ((EFI_D_ERROR, "Hash2ServiceBindingDestroyChild - Invalid handle\n"));
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
//
|
||||
// Get HashProtocol
|
||||
//
|
||||
Status = gBS->HandleProtocol (
|
||||
ChildHandle,
|
||||
&gEfiHash2ProtocolGuid,
|
||||
(VOID **)&Hash2Protocol
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
return Status;
|
||||
}
|
||||
|
||||
ASSERT (Hash2Protocol == &Instance->Hash2Protocol);
|
||||
|
||||
//
|
||||
// Uninstall the Hash protocol.
|
||||
//
|
||||
Status = gBS->UninstallMultipleProtocolInterfaces (
|
||||
ChildHandle,
|
||||
&gEfiHash2ProtocolGuid,
|
||||
&Instance->Hash2Protocol,
|
||||
NULL
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
return Status;
|
||||
}
|
||||
|
||||
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
|
||||
|
||||
//
|
||||
// Remove this instance from the ChildrenList.
|
||||
//
|
||||
RemoveEntryList (&Instance->InstEntry);
|
||||
|
||||
gBS->RestoreTPL (OldTpl);
|
||||
|
||||
FreePool (Instance);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
/**
|
||||
The entry point for Hash driver which installs the service binding protocol.
|
||||
|
||||
@param[in] ImageHandle The image handle of the driver.
|
||||
@param[in] SystemTable The system table.
|
||||
|
||||
@retval EFI_SUCCES The service binding protocols is successfully installed.
|
||||
@retval Others Other errors as indicated.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
Hash2DriverEntryPoint (
|
||||
IN EFI_HANDLE ImageHandle,
|
||||
IN EFI_SYSTEM_TABLE *SystemTable
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
HASH2_SERVICE_DATA *Hash2ServiceData;
|
||||
|
||||
//
|
||||
// Initialize the Hash Service Data.
|
||||
//
|
||||
Hash2ServiceData = AllocateZeroPool (sizeof (HASH2_SERVICE_DATA));
|
||||
if (Hash2ServiceData == NULL) {
|
||||
return EFI_OUT_OF_RESOURCES;
|
||||
}
|
||||
|
||||
Hash2ServiceData->Signature = HASH2_SERVICE_DATA_SIGNATURE;
|
||||
CopyMem (&Hash2ServiceData->ServiceBinding, &mHash2ServiceBindingProtocol, sizeof (EFI_SERVICE_BINDING_PROTOCOL));
|
||||
InitializeListHead (&Hash2ServiceData->ChildrenList);
|
||||
|
||||
//
|
||||
// Install the HASH Service Binding Protocol
|
||||
//
|
||||
Status = gBS->InstallMultipleProtocolInterfaces (
|
||||
&Hash2ServiceData->ServiceHandle,
|
||||
&gEfiHash2ServiceBindingProtocolGuid,
|
||||
&Hash2ServiceData->ServiceBinding,
|
||||
NULL
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
FreePool (Hash2ServiceData);
|
||||
}
|
||||
|
||||
return Status;
|
||||
}
|
||||
Reference in New Issue
Block a user