Add security package to repository.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12261 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
555
SecurityPkg/Tcg/TcgConfigDxe/TcgConfigImpl.c
Normal file
555
SecurityPkg/Tcg/TcgConfigDxe/TcgConfigImpl.c
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@@ -0,0 +1,555 @@
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/** @file
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HII Config Access protocol implementation of TCG configuration module.
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Copyright (c) 2011, 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 "TcgConfigImpl.h"
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EFI_GUID mTcgFormSetGuid = TCG_CONFIG_PRIVATE_GUID;
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CHAR16 mTcgStorageName[] = L"TCG_CONFIGURATION";
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TCG_CONFIG_PRIVATE_DATA mTcgConfigPrivateDateTemplate = {
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TCG_CONFIG_PRIVATE_DATA_SIGNATURE,
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{
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TcgExtractConfig,
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TcgRouteConfig,
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TcgCallback
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}
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};
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HII_VENDOR_DEVICE_PATH mTcgHiiVendorDevicePath = {
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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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TCG_CONFIG_PRIVATE_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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Get current state of TPM device.
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@param[in] TcgProtocol Point to EFI_TCG_PROTOCOL instance.
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@param[out] TpmEnable Flag to indicate TPM is enabled or not.
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@param[out] TpmActivate Flag to indicate TPM is activated or not.
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@retval EFI_SUCCESS State is successfully returned.
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@retval EFI_DEVICE_ERROR Failed to get TPM response.
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@retval Others Other errors as indicated.
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**/
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EFI_STATUS
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GetTpmState (
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IN EFI_TCG_PROTOCOL *TcgProtocol,
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OUT BOOLEAN *TpmEnable, OPTIONAL
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OUT BOOLEAN *TpmActivate OPTIONAL
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)
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{
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EFI_STATUS Status;
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TPM_RSP_COMMAND_HDR *TpmRsp;
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UINT32 TpmSendSize;
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TPM_PERMANENT_FLAGS *TpmPermanentFlags;
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UINT8 CmdBuf[64];
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ASSERT (TcgProtocol != NULL);
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//
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// Get TPM Permanent flags (TpmEnable, TpmActivate)
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//
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if ((TpmEnable != NULL) || (TpmActivate != NULL)) {
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TpmSendSize = sizeof (TPM_RQU_COMMAND_HDR) + sizeof (UINT32) * 3;
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*(UINT16*)&CmdBuf[0] = H2NS (TPM_TAG_RQU_COMMAND);
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*(UINT32*)&CmdBuf[2] = H2NL (TpmSendSize);
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*(UINT32*)&CmdBuf[6] = H2NL (TPM_ORD_GetCapability);
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*(UINT32*)&CmdBuf[10] = H2NL (TPM_CAP_FLAG);
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*(UINT32*)&CmdBuf[14] = H2NL (sizeof (TPM_CAP_FLAG_PERMANENT));
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*(UINT32*)&CmdBuf[18] = H2NL (TPM_CAP_FLAG_PERMANENT);
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Status = TcgProtocol->PassThroughToTpm (
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TcgProtocol,
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TpmSendSize,
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CmdBuf,
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sizeof (CmdBuf),
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CmdBuf
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);
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TpmRsp = (TPM_RSP_COMMAND_HDR *) &CmdBuf[0];
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if (EFI_ERROR (Status) || (TpmRsp->tag != H2NS (TPM_TAG_RSP_COMMAND)) || (TpmRsp->returnCode != 0)) {
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return EFI_DEVICE_ERROR;
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}
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TpmPermanentFlags = (TPM_PERMANENT_FLAGS *) &CmdBuf[sizeof (TPM_RSP_COMMAND_HDR) + sizeof (UINT32)];
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if (TpmEnable != NULL) {
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*TpmEnable = (BOOLEAN) !TpmPermanentFlags->disable;
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}
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if (TpmActivate != NULL) {
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*TpmActivate = (BOOLEAN) !TpmPermanentFlags->deactivated;
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}
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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 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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TcgExtractConfig (
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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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TCG_CONFIGURATION Configuration;
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TCG_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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BOOLEAN TpmEnable;
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BOOLEAN TpmActivate;
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CHAR16 State[32];
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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, &mTcgFormSetGuid, mTcgStorageName)) {
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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 = TCG_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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ZeroMem (&Configuration, sizeof (TCG_CONFIGURATION));
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Configuration.MorState = PcdGetBool (PcdMorEnable);
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Configuration.TpmOperation = ENABLE;
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Configuration.HideTpm = PcdGetBool (PcdHideTpmSupport) && PcdGetBool (PcdHideTpm);
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//
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// Read the original value of HideTpm from PrivateData which won't be changed by Setup in this boot.
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//
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Configuration.OriginalHideTpm = PrivateData->HideTpm;
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//
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// Display current TPM state.
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//
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if (PrivateData->TcgProtocol != NULL) {
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Status = GetTpmState (PrivateData->TcgProtocol, &TpmEnable, &TpmActivate);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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UnicodeSPrint (
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State,
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sizeof (State),
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L"%s, and %s",
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TpmEnable ? L"Enabled" : L"Disabled",
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TpmActivate ? L"Activated" : L"Deactivated"
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);
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Configuration.TpmEnable = TpmEnable;
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Configuration.TpmActivate = TpmActivate;
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HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM_STATE_CONTENT), State, NULL);
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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 (&mTcgFormSetGuid, mTcgStorageName, 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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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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TcgRouteConfig (
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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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TCG_CONFIGURATION TcgConfiguration;
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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, &mTcgFormSetGuid, mTcgStorageName)) {
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return EFI_NOT_FOUND;
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}
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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 (TCG_CONFIGURATION);
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Status = gHiiConfigRouting->ConfigToBlock (
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gHiiConfigRouting,
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Configuration,
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(UINT8 *) &TcgConfiguration,
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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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PcdSetBool (PcdMorEnable, TcgConfiguration.MorState);
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PcdSetBool (PcdHideTpm, TcgConfiguration.HideTpm);
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return EFI_SUCCESS;
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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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SavePpRequest (
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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_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_PHYSICAL_PRESENCE);
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Status = gRT->GetVariable (
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PHYSICAL_PRESENCE_VARIABLE,
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&gEfiPhysicalPresenceGuid,
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NULL,
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&DataSize,
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||||
&PpData
|
||||
);
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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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PHYSICAL_PRESENCE_VARIABLE,
|
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&gEfiPhysicalPresenceGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
|
||||
DataSize,
|
||||
&PpData
|
||||
);
|
||||
if (EFI_ERROR(Status)) {
|
||||
return Status;
|
||||
}
|
||||
|
||||
//
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||||
// Reset system.
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||||
//
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gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);
|
||||
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||||
return EFI_SUCCESS;
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||||
}
|
||||
|
||||
/**
|
||||
This function processes the results of changes in configuration.
|
||||
|
||||
@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
|
||||
@param[in] Action Specifies the type of action taken by the browser.
|
||||
@param[in] QuestionId A unique value which is sent to the original
|
||||
exporting driver so that it can identify the type
|
||||
of data to expect.
|
||||
@param[in] Type The type of value for the question.
|
||||
@param[in] Value A pointer to the data being sent to the original
|
||||
exporting driver.
|
||||
@param[out] ActionRequest On return, points to the action requested by the
|
||||
callback function.
|
||||
|
||||
@retval EFI_SUCCESS The callback successfully handled the action.
|
||||
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the
|
||||
variable and its data.
|
||||
@retval EFI_DEVICE_ERROR The variable could not be saved.
|
||||
@retval EFI_UNSUPPORTED The specified Action is not supported by the
|
||||
callback.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
TcgCallback (
|
||||
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
|
||||
IN EFI_BROWSER_ACTION Action,
|
||||
IN EFI_QUESTION_ID QuestionId,
|
||||
IN UINT8 Type,
|
||||
IN EFI_IFR_TYPE_VALUE *Value,
|
||||
OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest
|
||||
)
|
||||
{
|
||||
if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
if ((Action != EFI_BROWSER_ACTION_CHANGING) || (QuestionId != KEY_TPM_ACTION)) {
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
SavePpRequest (Value->u8);
|
||||
ASSERT (FALSE);
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
This function publish the TCG configuration Form for TPM device.
|
||||
|
||||
@param[in, out] PrivateData Points to TCG configuration private data.
|
||||
|
||||
@retval EFI_SUCCESS HII Form is installed for this network device.
|
||||
@retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.
|
||||
@retval Others Other errors as indicated.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
InstallTcgConfigForm (
|
||||
IN OUT TCG_CONFIG_PRIVATE_DATA *PrivateData
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
EFI_HII_HANDLE HiiHandle;
|
||||
EFI_HANDLE DriverHandle;
|
||||
VOID *StartOpCodeHandle;
|
||||
VOID *EndOpCodeHandle;
|
||||
EFI_IFR_GUID_LABEL *StartLabel;
|
||||
EFI_IFR_GUID_LABEL *EndLabel;
|
||||
|
||||
EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
|
||||
|
||||
DriverHandle = NULL;
|
||||
ConfigAccess = &PrivateData->ConfigAccess;
|
||||
Status = gBS->InstallMultipleProtocolInterfaces (
|
||||
&DriverHandle,
|
||||
&gEfiDevicePathProtocolGuid,
|
||||
&mTcgHiiVendorDevicePath,
|
||||
&gEfiHiiConfigAccessProtocolGuid,
|
||||
ConfigAccess,
|
||||
NULL
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
return Status;
|
||||
}
|
||||
|
||||
PrivateData->DriverHandle = DriverHandle;
|
||||
|
||||
//
|
||||
// Publish the HII package list
|
||||
//
|
||||
HiiHandle = HiiAddPackages (
|
||||
&mTcgFormSetGuid,
|
||||
DriverHandle,
|
||||
TcgConfigDxeStrings,
|
||||
TcgConfigBin,
|
||||
NULL
|
||||
);
|
||||
if (HiiHandle == NULL) {
|
||||
gBS->UninstallMultipleProtocolInterfaces (
|
||||
DriverHandle,
|
||||
&gEfiDevicePathProtocolGuid,
|
||||
&mTcgHiiVendorDevicePath,
|
||||
&gEfiHiiConfigAccessProtocolGuid,
|
||||
ConfigAccess,
|
||||
NULL
|
||||
);
|
||||
|
||||
return EFI_OUT_OF_RESOURCES;
|
||||
}
|
||||
|
||||
PrivateData->HiiHandle = HiiHandle;
|
||||
|
||||
//
|
||||
// Remove the Hide TPM question from the IFR
|
||||
//
|
||||
if (!PcdGetBool (PcdHideTpmSupport)) {
|
||||
//
|
||||
// Allocate space for creation of UpdateData Buffer
|
||||
//
|
||||
StartOpCodeHandle = HiiAllocateOpCodeHandle ();
|
||||
ASSERT (StartOpCodeHandle != NULL);
|
||||
|
||||
EndOpCodeHandle = HiiAllocateOpCodeHandle ();
|
||||
ASSERT (EndOpCodeHandle != NULL);
|
||||
|
||||
//
|
||||
// Create Hii Extend Label OpCode as the start opcode
|
||||
//
|
||||
StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
|
||||
StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
|
||||
StartLabel->Number = LABEL_TCG_CONFIGURATION_HIDETPM;
|
||||
|
||||
//
|
||||
// Create Hii Extend Label OpCode as the end opcode
|
||||
//
|
||||
EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (EndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
|
||||
EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
|
||||
EndLabel->Number = LABEL_END;
|
||||
|
||||
HiiUpdateForm (HiiHandle, NULL, TCG_CONFIGURATION_FORM_ID, StartOpCodeHandle, EndOpCodeHandle);
|
||||
|
||||
HiiFreeOpCodeHandle (StartOpCodeHandle);
|
||||
HiiFreeOpCodeHandle (EndOpCodeHandle);
|
||||
}
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
This function removes TCG configuration Form.
|
||||
|
||||
@param[in, out] PrivateData Points to TCG configuration private data.
|
||||
|
||||
**/
|
||||
VOID
|
||||
UninstallTcgConfigForm (
|
||||
IN OUT TCG_CONFIG_PRIVATE_DATA *PrivateData
|
||||
)
|
||||
{
|
||||
//
|
||||
// Uninstall HII package list
|
||||
//
|
||||
if (PrivateData->HiiHandle != NULL) {
|
||||
HiiRemovePackages (PrivateData->HiiHandle);
|
||||
PrivateData->HiiHandle = NULL;
|
||||
}
|
||||
|
||||
//
|
||||
// Uninstall HII Config Access Protocol
|
||||
//
|
||||
if (PrivateData->DriverHandle != NULL) {
|
||||
gBS->UninstallMultipleProtocolInterfaces (
|
||||
PrivateData->DriverHandle,
|
||||
&gEfiDevicePathProtocolGuid,
|
||||
&mTcgHiiVendorDevicePath,
|
||||
&gEfiHiiConfigAccessProtocolGuid,
|
||||
&PrivateData->ConfigAccess,
|
||||
NULL
|
||||
);
|
||||
PrivateData->DriverHandle = NULL;
|
||||
}
|
||||
|
||||
FreePool (PrivateData);
|
||||
}
|
Reference in New Issue
Block a user