Add TPM2 implementation.
signed off by: jiewen.yao@intel.com reviewed by: guo.dong@intel.com git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14687 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
454
SecurityPkg/Tcg/TrEEConfig/TrEEConfigImpl.c
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454
SecurityPkg/Tcg/TrEEConfig/TrEEConfigImpl.c
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/** @file
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HII Config Access protocol implementation of TREE configuration module.
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NOTE: This module is only for reference only, each platform should have its own setup page.
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Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "TrEEConfigImpl.h"
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#include <Library/PcdLib.h>
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#include <Library/Tpm2CommandLib.h>
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#include <Guid/TpmInstance.h>
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TPM_INSTANCE_ID mTpmInstanceId[TPM_DEVICE_MAX + 1] = TPM_INSTANCE_ID_LIST;
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TREE_CONFIG_PRIVATE_DATA mTrEEConfigPrivateDateTemplate = {
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TREE_CONFIG_PRIVATE_DATA_SIGNATURE,
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{
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TrEEExtractConfig,
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TrEERouteConfig,
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TrEECallback
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}
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};
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HII_VENDOR_DEVICE_PATH mTrEEHiiVendorDevicePath = {
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{
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{
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HARDWARE_DEVICE_PATH,
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HW_VENDOR_DP,
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{
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(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
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(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
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}
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},
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TREE_CONFIG_FORM_SET_GUID
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},
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{
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END_DEVICE_PATH_TYPE,
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END_ENTIRE_DEVICE_PATH_SUBTYPE,
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{
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(UINT8) (END_DEVICE_PATH_LENGTH),
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(UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)
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}
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}
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};
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/**
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This function allows a caller to extract the current configuration for one
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or more named elements from the target driver.
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@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
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@param[in] Request A null-terminated Unicode string in
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<ConfigRequest> format.
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@param[out] Progress On return, points to a character in the Request
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string. Points to the string's null terminator if
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request was successful. Points to the most recent
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'&' before the first failing name/value pair (or
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the beginning of the string if the failure is in
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the first name/value pair) if the request was not
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successful.
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@param[out] Results A null-terminated Unicode string in
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<ConfigAltResp> format which has all values filled
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in for the names in the Request string. String to
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be allocated by the called function.
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@retval EFI_SUCCESS The Results is filled with the requested values.
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@retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.
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@retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.
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@retval EFI_NOT_FOUND Routing data doesn't match any storage in this
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driver.
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**/
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EFI_STATUS
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EFIAPI
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TrEEExtractConfig (
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IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
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IN CONST EFI_STRING Request,
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OUT EFI_STRING *Progress,
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OUT EFI_STRING *Results
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)
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{
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EFI_STATUS Status;
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UINTN BufferSize;
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TREE_CONFIGURATION Configuration;
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TREE_CONFIG_PRIVATE_DATA *PrivateData;
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EFI_STRING ConfigRequestHdr;
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EFI_STRING ConfigRequest;
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BOOLEAN AllocatedRequest;
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UINTN Size;
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UINTN Index;
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if (Progress == NULL || Results == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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*Progress = Request;
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if ((Request != NULL) && !HiiIsConfigHdrMatch (Request, &gTrEEConfigFormSetGuid, TREE_STORAGE_NAME)) {
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return EFI_NOT_FOUND;
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}
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ConfigRequestHdr = NULL;
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ConfigRequest = NULL;
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AllocatedRequest = FALSE;
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Size = 0;
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PrivateData = TREE_CONFIG_PRIVATE_DATA_FROM_THIS (This);
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//
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// Convert buffer data to <ConfigResp> by helper function BlockToConfig()
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//
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BufferSize = sizeof (Configuration);
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Status = gRT->GetVariable (
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TREE_STORAGE_NAME,
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&gTrEEConfigFormSetGuid,
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NULL,
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&BufferSize,
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&Configuration
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);
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ASSERT_EFI_ERROR (Status);
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//
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// Get data from PCD to make sure data consistant - platform driver is suppose to construct this PCD accroding to Variable
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//
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for (Index = 0; Index < sizeof(mTpmInstanceId)/sizeof(mTpmInstanceId[0]); Index++) {
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if (CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &mTpmInstanceId[Index].TpmInstanceGuid)) {
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Configuration.TpmDevice = mTpmInstanceId[Index].TpmDevice;
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break;
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}
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}
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BufferSize = sizeof (Configuration);
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ConfigRequest = Request;
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if ((Request == NULL) || (StrStr (Request, L"OFFSET") == NULL)) {
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//
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// Request has no request element, construct full request string.
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// Allocate and fill a buffer large enough to hold the <ConfigHdr> template
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// followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator
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//
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ConfigRequestHdr = HiiConstructConfigHdr (&gTrEEConfigFormSetGuid, TREE_STORAGE_NAME, PrivateData->DriverHandle);
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Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);
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ConfigRequest = AllocateZeroPool (Size);
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ASSERT (ConfigRequest != NULL);
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AllocatedRequest = TRUE;
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UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64) BufferSize);
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FreePool (ConfigRequestHdr);
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}
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Status = gHiiConfigRouting->BlockToConfig (
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gHiiConfigRouting,
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ConfigRequest,
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(UINT8 *) &Configuration,
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BufferSize,
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Results,
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Progress
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);
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//
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// Free the allocated config request string.
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//
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if (AllocatedRequest) {
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FreePool (ConfigRequest);
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}
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//
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// Set Progress string to the original request string.
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//
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if (Request == NULL) {
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*Progress = NULL;
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} else if (StrStr (Request, L"OFFSET") == NULL) {
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*Progress = Request + StrLen (Request);
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}
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return Status;
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}
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/**
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Save TPM request to variable space.
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@param[in] PpRequest Physical Presence request command.
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@retval EFI_SUCCESS The operation is finished successfully.
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@retval Others Other errors as indicated.
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**/
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EFI_STATUS
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SaveTrEEPpRequest (
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IN UINT8 PpRequest
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)
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{
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EFI_STATUS Status;
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UINTN DataSize;
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EFI_TREE_PHYSICAL_PRESENCE PpData;
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//
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// Save TPM command to variable.
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//
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DataSize = sizeof (EFI_TREE_PHYSICAL_PRESENCE);
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Status = gRT->GetVariable (
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TREE_PHYSICAL_PRESENCE_VARIABLE,
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&gEfiTrEEPhysicalPresenceGuid,
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NULL,
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&DataSize,
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&PpData
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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PpData.PPRequest = PpRequest;
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Status = gRT->SetVariable (
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TREE_PHYSICAL_PRESENCE_VARIABLE,
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&gEfiTrEEPhysicalPresenceGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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DataSize,
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&PpData
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);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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return EFI_SUCCESS;
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}
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/**
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This function processes the results of changes in configuration.
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@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
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@param[in] Configuration A null-terminated Unicode string in <ConfigResp>
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format.
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@param[out] Progress A pointer to a string filled in with the offset of
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the most recent '&' before the first failing
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name/value pair (or the beginning of the string if
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the failure is in the first name/value pair) or
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the terminating NULL if all was successful.
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@retval EFI_SUCCESS The Results is processed successfully.
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@retval EFI_INVALID_PARAMETER Configuration is NULL.
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@retval EFI_NOT_FOUND Routing data doesn't match any storage in this
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driver.
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**/
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EFI_STATUS
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EFIAPI
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TrEERouteConfig (
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IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
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IN CONST EFI_STRING Configuration,
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OUT EFI_STRING *Progress
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)
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{
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EFI_STATUS Status;
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UINTN BufferSize;
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TREE_CONFIGURATION TrEEConfiguration;
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if (Configuration == NULL || Progress == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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*Progress = Configuration;
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if (!HiiIsConfigHdrMatch (Configuration, &gTrEEConfigFormSetGuid, TREE_STORAGE_NAME)) {
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return EFI_NOT_FOUND;
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}
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BufferSize = sizeof (TrEEConfiguration);
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Status = gRT->GetVariable (
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TREE_STORAGE_NAME,
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&gTrEEConfigFormSetGuid,
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NULL,
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&BufferSize,
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&TrEEConfiguration
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);
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ASSERT_EFI_ERROR (Status);
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//
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// Convert <ConfigResp> to buffer data by helper function ConfigToBlock()
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//
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BufferSize = sizeof (TREE_CONFIGURATION);
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Status = gHiiConfigRouting->ConfigToBlock (
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gHiiConfigRouting,
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Configuration,
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(UINT8 *) &TrEEConfiguration,
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&BufferSize,
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Progress
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Save to variable so platform driver can get it.
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//
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Status = gRT->SetVariable (
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TREE_STORAGE_NAME,
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&gTrEEConfigFormSetGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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sizeof(TrEEConfiguration),
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&TrEEConfiguration
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);
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SaveTrEEPpRequest (TrEEConfiguration.Tpm2Operation
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);
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return Status;
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}
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/**
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This function processes the results of changes in configuration.
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@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
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@param[in] Action Specifies the type of action taken by the browser.
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@param[in] QuestionId A unique value which is sent to the original
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exporting driver so that it can identify the type
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of data to expect.
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@param[in] Type The type of value for the question.
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@param[in] Value A pointer to the data being sent to the original
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exporting driver.
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@param[out] ActionRequest On return, points to the action requested by the
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callback function.
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@retval EFI_SUCCESS The callback successfully handled the action.
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@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the
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variable and its data.
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@retval EFI_DEVICE_ERROR The variable could not be saved.
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@retval EFI_UNSUPPORTED The specified Action is not supported by the
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callback.
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**/
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EFI_STATUS
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EFIAPI
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TrEECallback (
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IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
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IN EFI_BROWSER_ACTION Action,
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IN EFI_QUESTION_ID QuestionId,
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IN UINT8 Type,
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IN EFI_IFR_TYPE_VALUE *Value,
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OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest
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)
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{
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if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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if ((Action != EFI_BROWSER_ACTION_CHANGED) ||
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(QuestionId != KEY_TPM_DEVICE)) {
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return EFI_UNSUPPORTED;
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}
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return EFI_SUCCESS;
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}
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/**
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This function publish the TREE configuration Form for TPM device.
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@param[in, out] PrivateData Points to TREE configuration private data.
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@retval EFI_SUCCESS HII Form is installed for this network device.
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@retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.
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@retval Others Other errors as indicated.
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**/
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EFI_STATUS
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InstallTrEEConfigForm (
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IN OUT TREE_CONFIG_PRIVATE_DATA *PrivateData
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)
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{
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EFI_STATUS Status;
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EFI_HII_HANDLE HiiHandle;
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EFI_HANDLE DriverHandle;
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EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
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DriverHandle = NULL;
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ConfigAccess = &PrivateData->ConfigAccess;
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Status = gBS->InstallMultipleProtocolInterfaces (
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&DriverHandle,
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&gEfiDevicePathProtocolGuid,
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&mTrEEHiiVendorDevicePath,
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&gEfiHiiConfigAccessProtocolGuid,
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ConfigAccess,
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NULL
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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PrivateData->DriverHandle = DriverHandle;
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//
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// Publish the HII package list
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//
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HiiHandle = HiiAddPackages (
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&gTrEEConfigFormSetGuid,
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DriverHandle,
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TrEEConfigDxeStrings,
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TrEEConfigBin,
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NULL
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);
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if (HiiHandle == NULL) {
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gBS->UninstallMultipleProtocolInterfaces (
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DriverHandle,
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&gEfiDevicePathProtocolGuid,
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&mTrEEHiiVendorDevicePath,
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&gEfiHiiConfigAccessProtocolGuid,
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ConfigAccess,
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NULL
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);
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return EFI_OUT_OF_RESOURCES;
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}
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PrivateData->HiiHandle = HiiHandle;
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return EFI_SUCCESS;
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}
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/**
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This function removes TREE configuration Form.
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@param[in, out] PrivateData Points to TREE configuration private data.
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**/
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VOID
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UninstallTrEEConfigForm (
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IN OUT TREE_CONFIG_PRIVATE_DATA *PrivateData
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)
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{
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//
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// Uninstall HII package list
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//
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if (PrivateData->HiiHandle != NULL) {
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HiiRemovePackages (PrivateData->HiiHandle);
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PrivateData->HiiHandle = NULL;
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}
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//
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// Uninstall HII Config Access Protocol
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//
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if (PrivateData->DriverHandle != NULL) {
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gBS->UninstallMultipleProtocolInterfaces (
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PrivateData->DriverHandle,
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&gEfiDevicePathProtocolGuid,
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&mTrEEHiiVendorDevicePath,
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&gEfiHiiConfigAccessProtocolGuid,
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&PrivateData->ConfigAccess,
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NULL
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);
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PrivateData->DriverHandle = NULL;
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}
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FreePool (PrivateData);
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}
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Reference in New Issue
Block a user