The TPer Reset operation would be moved into SecurityPkg/Tcg/
MemoryOverwriteControl/TcgMor.inf module and be triggered at EndOfDxe.
By this way, all encrypted drives which produce EFI_STORAGE_SECURITY_
RPOTOCOL interface would be force reset when MOR is set.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tian Feng <feng.t...@intel.com>
---
MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c | 208 +-------------------------------
MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.h | 17 +--
2 files changed, 4 insertions(+), 221 deletions(-)
diff --git a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c
b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c
index 2678316..e7449f9 100644
--- a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c
+++ b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c
@@ -4,7 +4,7 @@
This file implements protocol interfaces: Driver Binding protocol,
Block IO protocol and DiskInfo protocol.
- Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2009 - 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
which accompanies this distribution. The full text of the license may be
found at
@@ -18,8 +18,6 @@
#include "AtaBus.h"
-UINT8 mMorControl;
-
//
// ATA Bus Driver Binding Protocol Instance
//
@@ -379,17 +377,6 @@ RegisterAtaDevice (
DEBUG ((EFI_D_INFO, "Successfully Install Storage Security Protocol on the
ATA device\n"));
}
-
- if (((mMorControl & 0x01) == 0x01) &&
((AtaDevice->IdentifyData->trusted_computing_support & BIT0) != 0)) {
- DEBUG ((EFI_D_INFO,
- "mMorControl = %x,
AtaDevice->IdentifyData->trusted_computing_support & BIT0 = %x\n",
- mMorControl,
- (AtaDevice->IdentifyData->trusted_computing_support & BIT0)
- ));
- DEBUG ((EFI_D_INFO, "Try to lock device by sending TPer Reset
command...\n"));
- InitiateTPerReset(AtaDevice);
- }
-
gBS->OpenProtocol (
AtaBusDriverData->Controller,
&gEfiAtaPassThruProtocolGuid,
@@ -1556,7 +1543,7 @@ AtaStorageSecurityReceiveData (
ATA_DEVICE *Private;
EFI_TPL OldTpl;
- DEBUG ((EFI_D_INFO, "EFI Storage Security Protocol - Read"));
+ DEBUG ((EFI_D_INFO, "EFI Storage Security Protocol - Read\n"));
if ((PayloadBuffer == NULL || PayloadTransferSize == NULL) &&
PayloadBufferSize != 0) {
return EFI_INVALID_PARAMETER;
}
@@ -1666,7 +1653,7 @@ AtaStorageSecuritySendData (
ATA_DEVICE *Private;
EFI_TPL OldTpl;
- DEBUG ((EFI_D_INFO, "EFI Storage Security Protocol - Send"));
+ DEBUG ((EFI_D_INFO, "EFI Storage Security Protocol - Send\n"));
if ((PayloadBuffer == NULL) && (PayloadBufferSize != 0)) {
return EFI_INVALID_PARAMETER;
}
@@ -1712,7 +1699,6 @@ InitializeAtaBus(
)
{
EFI_STATUS Status;
- UINTN DataSize;
//
// Install driver model protocol(s).
@@ -1727,194 +1713,6 @@ InitializeAtaBus(
);
ASSERT_EFI_ERROR (Status);
- //
- // Get the MorControl bit.
- //
- DataSize = sizeof (mMorControl);
- Status = gRT->GetVariable (
- MEMORY_OVERWRITE_REQUEST_VARIABLE_NAME,
- &gEfiMemoryOverwriteControlDataGuid,
- NULL,
- &DataSize,
- &mMorControl
- );
-
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_INFO, "AtaBus:gEfiMemoryOverwriteControlDataGuid doesn't
exist!!***\n"));
- mMorControl = 0;
- Status = EFI_SUCCESS;
- } else {
- DEBUG ((EFI_D_INFO, "AtaBus:Get the gEfiMemoryOverwriteControlDataGuid =
%x!!***\n", mMorControl));
- }
-
return Status;
}
-/**
- Send TPer Reset command to reset eDrive to lock all protected bands.
- Typically, there are 2 mechanism for resetting eDrive. They are:
- 1. TPer Reset through IEEE 1667 protocol.
- 2. TPer Reset through native TCG protocol.
- This routine will detect what protocol the attached eDrive comform to, TCG or
- IEEE 1667 protocol. Then send out TPer Reset command separately.
-
- @param[in] AtaDevice ATA_DEVICE pointer.
-
-**/
-VOID
-InitiateTPerReset (
- IN ATA_DEVICE *AtaDevice
- )
-{
-
- EFI_STATUS Status;
- UINT8 *Buffer;
- UINTN XferSize;
- UINTN Len;
- UINTN Index;
- BOOLEAN TcgFlag;
- BOOLEAN IeeeFlag;
- EFI_BLOCK_IO_PROTOCOL *BlockIo;
- EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *Ssp;
- SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA *Data;
-
- Buffer = NULL;
- TcgFlag = FALSE;
- IeeeFlag = FALSE;
- Ssp = &AtaDevice->StorageSecurity;
- BlockIo = &AtaDevice->BlockIo;
-
- //
- // ATA8-ACS 7.57.6.1 indicates the Transfer Length field requirements a
multiple of 512.
- // If the length of the TRUSTED RECEIVE parameter data is greater than the
Transfer Length,
- // then the device shall return the TRUSTED RECEIVE parameter data truncated
to the requested Transfer Length.
- //
- Len =
ROUNDUP512(sizeof(SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA));
- Buffer = AllocateZeroPool(Len);
-
- if (Buffer == NULL) {
- return;
- }
-
- //
- // When the Security Protocol field is set to 00h, and SP Specific is set to
0000h in a TRUSTED RECEIVE
- // command, the device basic information data shall be returned.
- //
- Status = Ssp->ReceiveData (
- Ssp,
- BlockIo->Media->MediaId,
- 100000000, // Timeout 10-sec
- 0, // SecurityProtocol
- 0, // SecurityProtocolSpecifcData
- Len, // PayloadBufferSize,
- Buffer, // PayloadBuffer
- &XferSize
- );
- if (EFI_ERROR (Status)) {
- goto Exit;
- }
-
- //
- // In returned data, the ListLength field indicates the total length, in
bytes,
- // of the supported security protocol list.
- //
- Data = (SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA*)Buffer;
- Len = ROUNDUP512(sizeof (SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA) +
- (Data->SupportedSecurityListLength[0] << 8) +
- (Data->SupportedSecurityListLength[1])
- );
-
- //
- // Free original buffer and allocate new buffer.
- //
- FreePool(Buffer);
- Buffer = AllocateZeroPool(Len);
- if (Buffer == NULL) {
- return;
- }
-
- //
- // Read full supported security protocol list from device.
- //
- Status = Ssp->ReceiveData (
- Ssp,
- BlockIo->Media->MediaId,
- 100000000, // Timeout 10-sec
- 0, // SecurityProtocol
- 0, // SecurityProtocolSpecifcData
- Len, // PayloadBufferSize,
- Buffer, // PayloadBuffer
- &XferSize
- );
-
- if (EFI_ERROR (Status)) {
- goto Exit;
- }
-
- Data = (SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA*)Buffer;
- Len = (Data->SupportedSecurityListLength[0] << 8) +
Data->SupportedSecurityListLength[1];
-
- //
- // Iterate full supported security protocol list to check if TCG or IEEE
1667 protocol
- // is supported.
- //
- for (Index = 0; Index < Len; Index++) {
- if (Data->SupportedSecurityProtocol[Index] == SECURITY_PROTOCOL_TCG) {
- //
- // Found a TCG device.
- //
- TcgFlag = TRUE;
- DEBUG ((EFI_D_INFO, "This device is a TCG protocol device\n"));
- break;
- }
-
- if (Data->SupportedSecurityProtocol[Index] == SECURITY_PROTOCOL_IEEE1667) {
- //
- // Found a IEEE 1667 device.
- //
- IeeeFlag = TRUE;
- DEBUG ((EFI_D_INFO, "This device is a IEEE 1667 protocol device\n"));
- break;
- }
- }
-
- if (!TcgFlag && !IeeeFlag) {
- DEBUG ((EFI_D_INFO, "Neither a TCG nor IEEE 1667 protocol device is
found\n"));
- goto Exit;
- }
-
- if (TcgFlag) {
- //
- // As long as TCG protocol is supported, send out a TPer Reset
- // TCG command to the device via the TrustedSend command with a non-zero
Transfer Length.
- //
- Status = Ssp->SendData (
- Ssp,
- BlockIo->Media->MediaId,
- 100000000, // Timeout 10-sec
- SECURITY_PROTOCOL_TCG, // SecurityProtocol
- 0x0400, //
SecurityProtocolSpecifcData
- 512, // PayloadBufferSize,
- Buffer // PayloadBuffer
- );
-
- if (!EFI_ERROR (Status)) {
- DEBUG ((EFI_D_INFO, "Send TPer Reset Command Successfully !\n"));
- } else {
- DEBUG ((EFI_D_INFO, "Send TPer Reset Command Fail !\n"));
- }
- }
-
- if (IeeeFlag) {
- //
- // TBD : Perform a TPer Reset via IEEE 1667 Protocol
- //
- DEBUG ((EFI_D_INFO, "IEEE 1667 Protocol didn't support yet!\n"));
- }
-
-Exit:
-
- if (Buffer != NULL) {
- FreePool(Buffer);
- }
-}
diff --git a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.h
b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.h
index 04ae47c..621f7d3 100644
--- a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.h
+++ b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.h
@@ -4,7 +4,7 @@
This file defines common data structures, macro definitions and some module
internal function header files.
- Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2009 - 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
which accompanies this distribution. The full text of the license may be
found at
@@ -85,21 +85,6 @@
#define ATA_SUB_TASK_SIGNATURE SIGNATURE_32 ('A', 'S', 'T', 'S')
#define IS_ALIGNED(addr, size) (((UINTN) (addr) & (size - 1)) == 0)
-#define ROUNDUP512(x) (((x) % 512 == 0) ? (x) : ((x) / 512 + 1) * 512)
-
-#define SECURITY_PROTOCOL_TCG 0x02
-#define SECURITY_PROTOCOL_IEEE1667 0xEE
-
-//
-// ATA Supported Security Protocols List Description.
-// Refer to ATA8-ACS Spec 7.57.6.2 Table 69.
-//
-typedef struct {
- UINT8 Reserved1[6];
- UINT8 SupportedSecurityListLength[2];
- UINT8 SupportedSecurityProtocol[1];
-} SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA;
-
//
// ATA bus data structure for ATA controller
//
--
1.9.5.msysgit.0
------------------------------------------------------------------------------
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