SecurityPkg/OpalPassword: Add PCD to skip password prompt

[mirror_edk2.git] / SecurityPkg / Tcg / Opal / OpalPassword / OpalPasswordPei.c

/** @file\r
  Opal Password PEI driver which is used to unlock Opal Password for S3.\r
\r
Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "OpalPasswordPei.h"\r
\r
EFI_GUID mOpalDeviceLockBoxGuid = OPAL_DEVICE_LOCKBOX_GUID;\r
\r
\r
/**\r
  Send a security protocol command to a device that receives data and/or the result\r
  of one or more commands sent by SendData.\r
\r
  The ReceiveData function sends a security protocol command to the given MediaId.\r
  The security protocol command sent is defined by SecurityProtocolId and contains\r
  the security protocol specific data SecurityProtocolSpecificData. The function\r
  returns the data from the security protocol command in PayloadBuffer.\r
\r
  For devices supporting the SCSI command set, the security protocol command is sent\r
  using the SECURITY PROTOCOL IN command defined in SPC-4.\r
\r
  For devices supporting the ATA command set, the security protocol command is sent\r
  using one of the TRUSTED RECEIVE commands defined in ATA8-ACS if PayloadBufferSize\r
  is non-zero.\r
\r
  If the PayloadBufferSize is zero, the security protocol command is sent using the\r
  Trusted Non-Data command defined in ATA8-ACS.\r
\r
  If PayloadBufferSize is too small to store the available data from the security\r
  protocol command, the function shall copy PayloadBufferSize bytes into the\r
  PayloadBuffer and return EFI_WARN_BUFFER_TOO_SMALL.\r
\r
  If PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero,\r
  the function shall return EFI_INVALID_PARAMETER.\r
\r
  If the given MediaId does not support security protocol commands, the function shall\r
  return EFI_UNSUPPORTED. If there is no media in the device, the function returns\r
  EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the device,\r
  the function returns EFI_MEDIA_CHANGED.\r
\r
  If the security protocol fails to complete within the Timeout period, the function\r
  shall return EFI_TIMEOUT.\r
\r
  If the security protocol command completes without an error, the function shall\r
  return EFI_SUCCESS. If the security protocol command completes with an error, the\r
  function shall return EFI_DEVICE_ERROR.\r
\r
  @param  This                         Indicates a pointer to the calling context.\r
  @param  MediaId                      ID of the medium to receive data from.\r
  @param  Timeout                      The timeout, in 100ns units, to use for the execution\r
                                       of the security protocol command. A Timeout value of 0\r
                                       means that this function will wait indefinitely for the\r
                                       security protocol command to execute. If Timeout is greater\r
                                       than zero, then this function will return EFI_TIMEOUT\r
                                       if the time required to execute the receive data command\r
                                       is greater than Timeout.\r
  @param  SecurityProtocolId           The value of the "Security Protocol" parameter of\r
                                       the security protocol command to be sent.\r
  @param  SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter\r
                                       of the security protocol command to be sent.\r
  @param  PayloadBufferSize            Size in bytes of the payload data buffer.\r
  @param  PayloadBuffer                A pointer to a destination buffer to store the security\r
                                       protocol command specific payload data for the security\r
                                       protocol command. The caller is responsible for having\r
                                       either implicit or explicit ownership of the buffer.\r
  @param  PayloadTransferSize          A pointer to a buffer to store the size in bytes of the\r
                                       data written to the payload data buffer.\r
\r
  @retval EFI_SUCCESS                  The security protocol command completed successfully.\r
  @retval EFI_WARN_BUFFER_TOO_SMALL    The PayloadBufferSize was too small to store the available\r
                                       data from the device. The PayloadBuffer contains the truncated data.\r
  @retval EFI_UNSUPPORTED              The given MediaId does not support security protocol commands.\r
  @retval EFI_DEVICE_ERROR             The security protocol command completed with an error.\r
  @retval EFI_NO_MEDIA                 There is no media in the device.\r
  @retval EFI_MEDIA_CHANGED            The MediaId is not for the current media.\r
  @retval EFI_INVALID_PARAMETER        The PayloadBuffer or PayloadTransferSize is NULL and\r
                                       PayloadBufferSize is non-zero.\r
  @retval EFI_TIMEOUT                  A timeout occurred while waiting for the security\r
                                       protocol command to execute.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SecurityReceiveData (\r
  IN  EFI_STORAGE_SECURITY_COMMAND_PROTOCOL    *This,\r
  IN  UINT32                                   MediaId,\r
  IN  UINT64                                   Timeout,\r
  IN  UINT8                                    SecurityProtocolId,\r
  IN  UINT16                                   SecurityProtocolSpecificData,\r
  IN  UINTN                                    PayloadBufferSize,\r
  OUT VOID                                     *PayloadBuffer,\r
  OUT UINTN                                    *PayloadTransferSize\r
  )\r
{\r
  OPAL_PEI_DEVICE               *PeiDev;\r
\r
  PeiDev = OPAL_PEI_DEVICE_FROM_THIS (This);\r
  if (PeiDev == NULL) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  return PeiDev->SscPpi->ReceiveData (\r
                           PeiDev->SscPpi,\r
                           PeiDev->DeviceIndex,\r
                           SSC_PPI_GENERIC_TIMEOUT,\r
                           SecurityProtocolId,\r
                           SecurityProtocolSpecificData,\r
                           PayloadBufferSize,\r
                           PayloadBuffer,\r
                           PayloadTransferSize\r
                           );\r
}\r
\r
/**\r
  Send a security protocol command to a device.\r
\r
  The SendData function sends a security protocol command containing the payload\r
  PayloadBuffer to the given MediaId. The security protocol command sent is\r
  defined by SecurityProtocolId and contains the security protocol specific data\r
  SecurityProtocolSpecificData. If the underlying protocol command requires a\r
  specific padding for the command payload, the SendData function shall add padding\r
  bytes to the command payload to satisfy the padding requirements.\r
\r
  For devices supporting the SCSI command set, the security protocol command is sent\r
  using the SECURITY PROTOCOL OUT command defined in SPC-4.\r
\r
  For devices supporting the ATA command set, the security protocol command is sent\r
  using one of the TRUSTED SEND commands defined in ATA8-ACS if PayloadBufferSize\r
  is non-zero. If the PayloadBufferSize is zero, the security protocol command is\r
  sent using the Trusted Non-Data command defined in ATA8-ACS.\r
\r
  If PayloadBuffer is NULL and PayloadBufferSize is non-zero, the function shall\r
  return EFI_INVALID_PARAMETER.\r
\r
  If the given MediaId does not support security protocol commands, the function\r
  shall return EFI_UNSUPPORTED. If there is no media in the device, the function\r
  returns EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the\r
  device, the function returns EFI_MEDIA_CHANGED.\r
\r
  If the security protocol fails to complete within the Timeout period, the function\r
  shall return EFI_TIMEOUT.\r
\r
  If the security protocol command completes without an error, the function shall return\r
  EFI_SUCCESS. If the security protocol command completes with an error, the function\r
  shall return EFI_DEVICE_ERROR.\r
\r
  @param  This                         Indicates a pointer to the calling context.\r
  @param  MediaId                      ID of the medium to receive data from.\r
  @param  Timeout                      The timeout, in 100ns units, to use for the execution\r
                                       of the security protocol command. A Timeout value of 0\r
                                       means that this function will wait indefinitely for the\r
                                       security protocol command to execute. If Timeout is greater\r
                                       than zero, then this function will return EFI_TIMEOUT\r
                                       if the time required to execute the send data command\r
                                       is greater than Timeout.\r
  @param  SecurityProtocolId           The value of the "Security Protocol" parameter of\r
                                       the security protocol command to be sent.\r
  @param  SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter\r
                                       of the security protocol command to be sent.\r
  @param  PayloadBufferSize            Size in bytes of the payload data buffer.\r
  @param  PayloadBuffer                A pointer to a destination buffer to store the security\r
                                       protocol command specific payload data for the security\r
                                       protocol command.\r
\r
  @retval EFI_SUCCESS                  The security protocol command completed successfully.\r
  @retval EFI_UNSUPPORTED              The given MediaId does not support security protocol commands.\r
  @retval EFI_DEVICE_ERROR             The security protocol command completed with an error.\r
  @retval EFI_NO_MEDIA                 There is no media in the device.\r
  @retval EFI_MEDIA_CHANGED            The MediaId is not for the current media.\r
  @retval EFI_INVALID_PARAMETER        The PayloadBuffer is NULL and PayloadBufferSize is non-zero.\r
  @retval EFI_TIMEOUT                  A timeout occurred while waiting for the security\r
                                       protocol command to execute.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SecuritySendData (\r
  IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL    *This,\r
  IN UINT32                                   MediaId,\r
  IN UINT64                                   Timeout,\r
  IN UINT8                                    SecurityProtocolId,\r
  IN UINT16                                   SecurityProtocolSpecificData,\r
  IN UINTN                                    PayloadBufferSize,\r
  IN VOID                                     *PayloadBuffer\r
  )\r
{\r
  OPAL_PEI_DEVICE               *PeiDev;\r
\r
  PeiDev = OPAL_PEI_DEVICE_FROM_THIS (This);\r
  if (PeiDev == NULL) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  return PeiDev->SscPpi->SendData (\r
                           PeiDev->SscPpi,\r
                           PeiDev->DeviceIndex,\r
                           SSC_PPI_GENERIC_TIMEOUT,\r
                           SecurityProtocolId,\r
                           SecurityProtocolSpecificData,\r
                           PayloadBufferSize,\r
                           PayloadBuffer\r
                           );\r
}\r
\r
/**\r
\r
  The function returns whether or not the device is Opal Locked.\r
  TRUE means that the device is partially or fully locked.\r
  This will perform a Level 0 Discovery and parse the locking feature descriptor\r
\r
  @param[in]      OpalDev             Opal object to determine if locked.\r
  @param[out]     BlockSidSupported   Whether device support BlockSid feature.\r
\r
**/\r
BOOLEAN\r
IsOpalDeviceLocked(\r
  OPAL_PEI_DEVICE    *OpalDev,\r
  BOOLEAN            *BlockSidSupported\r
  )\r
{\r
  OPAL_SESSION                   Session;\r
  OPAL_DISK_SUPPORT_ATTRIBUTE    SupportedAttributes;\r
  TCG_LOCKING_FEATURE_DESCRIPTOR LockingFeature;\r
  UINT16                         OpalBaseComId;\r
  TCG_RESULT                     Ret;\r
\r
  Session.Sscp = &OpalDev->Sscp;\r
  Session.MediaId = 0;\r
\r
  Ret = OpalGetSupportedAttributesInfo (&Session, &SupportedAttributes, &OpalBaseComId);\r
  if (Ret != TcgResultSuccess) {\r
    return FALSE;\r
  }\r
\r
  Session.OpalBaseComId  = OpalBaseComId;\r
  *BlockSidSupported     = SupportedAttributes.BlockSid == 1 ? TRUE : FALSE;\r
\r
  Ret = OpalGetLockingInfo(&Session, &LockingFeature);\r
  if (Ret != TcgResultSuccess) {\r
    return FALSE;\r
  }\r
\r
  return OpalDeviceLocked (&SupportedAttributes, &LockingFeature);\r
}\r
\r
/**\r
  Unlock OPAL password for S3.\r
\r
  @param[in] OpalDev            Opal object to unlock.\r
\r
**/\r
VOID\r
UnlockOpalPassword (\r
  IN OPAL_PEI_DEVICE            *OpalDev\r
  )\r
{\r
  TCG_RESULT                    Result;\r
  OPAL_SESSION                  Session;\r
  BOOLEAN                       BlockSidSupport;\r
  UINT32                        PpStorageFlags;\r
  BOOLEAN                       BlockSIDEnabled;\r
\r
  BlockSidSupport = FALSE;\r
  if (IsOpalDeviceLocked (OpalDev, &BlockSidSupport)) {\r
    ZeroMem(&Session, sizeof (Session));\r
    Session.Sscp = &OpalDev->Sscp;\r
    Session.MediaId = 0;\r
    Session.OpalBaseComId = OpalDev->Device->OpalBaseComId;\r
\r
    Result = OpalUtilUpdateGlobalLockingRange (\r
               &Session,\r
               OpalDev->Device->Password,\r
               OpalDev->Device->PasswordLength,\r
               FALSE,\r
               FALSE\r
               );\r
    DEBUG ((\r
      DEBUG_INFO,\r
      "%a() OpalUtilUpdateGlobalLockingRange() Result = 0x%x\n",\r
      __FUNCTION__,\r
      Result\r
      ));\r
  }\r
\r
  PpStorageFlags = Tcg2PhysicalPresenceLibGetManagementFlags ();\r
  if ((PpStorageFlags & TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_ENABLE_BLOCK_SID) != 0) {\r
    BlockSIDEnabled = TRUE;\r
  } else {\r
    BlockSIDEnabled = FALSE;\r
  }\r
  if (BlockSIDEnabled && BlockSidSupport) {\r
    DEBUG ((DEBUG_INFO, "OpalPassword: S3 phase send BlockSid command to device!\n"));\r
    ZeroMem(&Session, sizeof (Session));\r
    Session.Sscp = &OpalDev->Sscp;\r
    Session.MediaId = 0;\r
    Session.OpalBaseComId = OpalDev->Device->OpalBaseComId;\r
    Result = OpalBlockSid (&Session, TRUE);\r
    DEBUG ((\r
      DEBUG_INFO,\r
      "%a() OpalBlockSid() Result = 0x%x\n",\r
      __FUNCTION__,\r
      Result\r
      ));\r
  }\r
}\r
\r
/**\r
  Unlock the OPAL NVM Express and ATA devices for S3.\r
\r
  @param[in] SscPpi    Pointer to the EDKII_PEI_STORAGE_SECURITY_CMD_PPI instance.\r
\r
**/\r
VOID\r
UnlockOpalPasswordDevices (\r
  IN EDKII_PEI_STORAGE_SECURITY_CMD_PPI    *SscPpi\r
  )\r
{\r
  EFI_STATUS                            Status;\r
  UINT8                                 *DevInfoBuffer;\r
  UINT8                                 DummyData;\r
  OPAL_DEVICE_LOCKBOX_DATA              *DevInfo;\r
  UINTN                                 DevInfoLength;\r
  EFI_DEVICE_PATH_PROTOCOL              *SscDevicePath;\r
  UINTN                                 SscDevicePathLength;\r
  UINTN                                 SscDeviceNum;\r
  UINTN                                 SscDeviceIndex;\r
  OPAL_PEI_DEVICE                       OpalDev;\r
\r
  //\r
  // Get OPAL devices info from LockBox.\r
  //\r
  DevInfoBuffer = &DummyData;\r
  DevInfoLength = sizeof (DummyData);\r
  Status = RestoreLockBox (&mOpalDeviceLockBoxGuid, DevInfoBuffer, &DevInfoLength);\r
  if (Status == EFI_BUFFER_TOO_SMALL) {\r
    DevInfoBuffer = AllocatePages (EFI_SIZE_TO_PAGES (DevInfoLength));\r
    if (DevInfoBuffer != NULL) {\r
      Status = RestoreLockBox (&mOpalDeviceLockBoxGuid, DevInfoBuffer, &DevInfoLength);\r
    }\r
  }\r
  if (DevInfoBuffer == NULL || DevInfoBuffer == &DummyData) {\r
    return;\r
  } else if (EFI_ERROR (Status)) {\r
    FreePages (DevInfoBuffer, EFI_SIZE_TO_PAGES (DevInfoLength));\r
    return;\r
  }\r
\r
  //\r
  // Go through all the devices managed by the SSC PPI instance.\r
  //\r
  Status = SscPpi->GetNumberofDevices (SscPpi, &SscDeviceNum);\r
  if (EFI_ERROR (Status)) {\r
    goto Exit;\r
  }\r
  for (SscDeviceIndex = 1; SscDeviceIndex <= SscDeviceNum; SscDeviceIndex++) {\r
    Status = SscPpi->GetDevicePath (\r
                       SscPpi,\r
                       SscDeviceIndex,\r
                       &SscDevicePathLength,\r
                       &SscDevicePath\r
                       );\r
    if (SscDevicePathLength <= sizeof (EFI_DEVICE_PATH_PROTOCOL)) {\r
      //\r
      // Device path validity check.\r
      //\r
      continue;\r
    }\r
\r
    //\r
    // Search the device in the restored LockBox.\r
    //\r
    for (DevInfo = (OPAL_DEVICE_LOCKBOX_DATA *) DevInfoBuffer;\r
         (UINTN) DevInfo < ((UINTN) DevInfoBuffer + DevInfoLength);\r
         DevInfo = (OPAL_DEVICE_LOCKBOX_DATA *) ((UINTN) DevInfo + DevInfo->Length)) {\r
      //\r
      // Find the matching device.\r
      //\r
      if ((DevInfo->DevicePathLength >= SscDevicePathLength) &&\r
          (CompareMem (\r
             DevInfo->DevicePath,\r
             SscDevicePath,\r
             SscDevicePathLength - sizeof (EFI_DEVICE_PATH_PROTOCOL)) == 0)) {\r
        OpalDev.Signature        = OPAL_PEI_DEVICE_SIGNATURE;\r
        OpalDev.Sscp.ReceiveData = SecurityReceiveData;\r
        OpalDev.Sscp.SendData    = SecuritySendData;\r
        OpalDev.Device           = DevInfo;\r
        OpalDev.Context          = NULL;\r
        OpalDev.SscPpi           = SscPpi;\r
        OpalDev.DeviceIndex      = SscDeviceIndex;\r
        UnlockOpalPassword (&OpalDev);\r
        break;\r
      }\r
    }\r
  }\r
\r
Exit:\r
  ZeroMem (DevInfoBuffer, DevInfoLength);\r
  FreePages (DevInfoBuffer, EFI_SIZE_TO_PAGES (DevInfoLength));\r
\r
}\r
\r
/**\r
  One notified function at the installation of EDKII_PEI_STORAGE_SECURITY_CMD_PPI.\r
  It is to unlock OPAL password for S3.\r
\r
  @param[in] PeiServices         Indirect reference to the PEI Services Table.\r
  @param[in] NotifyDescriptor    Address of the notification descriptor data structure.\r
  @param[in] Ppi                 Address of the PPI that was installed.\r
\r
  @return Status of the notification.\r
          The status code returned from this function is ignored.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
OpalPasswordStorageSecurityPpiNotify (\r
  IN EFI_PEI_SERVICES             **PeiServices,\r
  IN EFI_PEI_NOTIFY_DESCRIPTOR    *NotifyDesc,\r
  IN VOID                         *Ppi\r
  )\r
{\r
  DEBUG ((DEBUG_INFO, "%a entered at S3 resume!\n", __FUNCTION__));\r
\r
  UnlockOpalPasswordDevices ((EDKII_PEI_STORAGE_SECURITY_CMD_PPI *) Ppi);\r
\r
  DEBUG ((DEBUG_INFO, "%a exit at S3 resume!\n", __FUNCTION__));\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_PEI_NOTIFY_DESCRIPTOR mOpalPasswordStorageSecurityPpiNotifyDesc = {\r
  (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
  &gEdkiiPeiStorageSecurityCommandPpiGuid,\r
  OpalPasswordStorageSecurityPpiNotify\r
};\r
\r
\r
/**\r
  Main entry for this module.\r
\r
  @param FileHandle             Handle of the file being invoked.\r
  @param PeiServices            Pointer to PEI Services table.\r
\r
  @return Status from PeiServicesNotifyPpi.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
OpalPasswordPeiInit (\r
  IN EFI_PEI_FILE_HANDLE        FileHandle,\r
  IN CONST EFI_PEI_SERVICES     **PeiServices\r
  )\r
{\r
  EFI_STATUS       Status;\r
  EFI_BOOT_MODE    BootMode;\r
\r
  Status = PeiServicesGetBootMode (&BootMode);\r
  if ((EFI_ERROR (Status)) || (BootMode != BOOT_ON_S3_RESUME)) {\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  DEBUG ((DEBUG_INFO, "%a: Enters in S3 path.\n", __FUNCTION__));\r
\r
  Status = PeiServicesNotifyPpi (&mOpalPasswordStorageSecurityPpiNotifyDesc);\r
  ASSERT_EFI_ERROR (Status);\r
  return Status;\r
}\r