[edk2-devel] [PATCH v6 1/4] MdePkg: Implement SCSI commands for Security Protocol In/Out
Wu, Hao A
hao.a.wu at intel.com
Mon Sep 9 07:05:38 UTC 2019
Hello,
One inline comment below:
> -----Original Message-----
> From: devel at edk2.groups.io [mailto:devel at edk2.groups.io] On Behalf Of
> Zurcher, Christopher J
> Sent: Saturday, September 07, 2019 6:12 AM
> To: devel at edk2.groups.io
> Cc: Yao, Jiewen; Wang, Jian J; Gao, Liming
> Subject: [edk2-devel] [PATCH v6 1/4] MdePkg: Implement SCSI commands
> for Security Protocol In/Out
>
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1546
>
> This patch implements the Security Protocol In and Security Protocol Out
> commands in UefiScsiLib to prepare support for the Storage Security
> Command Protocol.
>
> Cc: Jiewen Yao <jiewen.yao at intel.com>
> Cc: Jian J Wang <jian.j.wang at intel.com>
> Cc: Liming Gao <liming.gao at intel.com>
> Signed-off-by: Christopher J Zurcher <christopher.j.zurcher at intel.com>
> ---
> MdePkg/Include/IndustryStandard/Scsi.h | 48 +++--
> MdePkg/Include/Library/UefiScsiLib.h | 128 +++++++++++-
> MdePkg/Library/UefiScsiLib/UefiScsiLib.c | 217 +++++++++++++++++++-
> 3 files changed, 374 insertions(+), 19 deletions(-)
>
> diff --git a/MdePkg/Include/IndustryStandard/Scsi.h
> b/MdePkg/Include/IndustryStandard/Scsi.h
> index cbe5709fe5..d03886417f 100644
> --- a/MdePkg/Include/IndustryStandard/Scsi.h
> +++ b/MdePkg/Include/IndustryStandard/Scsi.h
> @@ -1,7 +1,7 @@
> /** @file
> Support for SCSI-2 standard
>
> - Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> + Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> **/
> @@ -163,6 +163,12 @@
> #define EFI_SCSI_OP_SEND_MESSAGE10 0x2a
> #define EFI_SCSI_OP_SEND_MESSAGE12 0xaa
>
> +//
> +// Additional commands for Secure Transactions
> +//
> +#define EFI_SCSI_OP_SECURITY_PROTOCOL_IN 0xa2
> +#define EFI_SCSI_OP_SECURITY_PROTOCOL_OUT 0xb5
> +
> //
> // SCSI Data Transfer Direction
> //
> @@ -172,22 +178,30 @@
> //
> // Peripheral Device Type Definitions
> //
> -#define EFI_SCSI_TYPE_DISK 0x00 ///< Direct-access device (e.g.
> magnetic disk)
> -#define EFI_SCSI_TYPE_TAPE 0x01 ///< Sequential-access device (e.g.
> magnetic tape)
> -#define EFI_SCSI_TYPE_PRINTER 0x02 ///< Printer device
> -#define EFI_SCSI_TYPE_PROCESSOR 0x03 ///< Processor device
> -#define EFI_SCSI_TYPE_WORM 0x04 ///< Write-once device (e.g. some
> optical disks)
> -#define EFI_SCSI_TYPE_CDROM 0x05 ///< CD-ROM device
> -#define EFI_SCSI_TYPE_SCANNER 0x06 ///< Scanner device
> -#define EFI_SCSI_TYPE_OPTICAL 0x07 ///< Optical memory device (e.g.
> some optical disks)
> -#define EFI_SCSI_TYPE_MEDIUMCHANGER 0x08 ///< Medium changer
> device (e.g. jukeboxes)
> -#define EFI_SCSI_TYPE_COMMUNICATION 0x09 ///< Communications
> device
> -#define EFI_SCSI_TYPE_ASCIT8_1 0x0A ///< Defined by ASC IT8 (Graphic
> arts pre-press devices)
> -#define EFI_SCSI_TYPE_ASCIT8_2 0x0B ///< Defined by ASC IT8 (Graphic
> arts pre-press devices)
> -//
> -// 0Ch - 1Eh are reserved
> -//
> -#define EFI_SCSI_TYPE_UNKNOWN 0x1F ///< Unknown or no device
> type
> +#define EFI_SCSI_TYPE_DISK 0x00 ///< Direct-access device (e.g.
> magnetic disk)
> +#define EFI_SCSI_TYPE_TAPE 0x01 ///< Sequential-access device (e.g.
> magnetic tape)
> +#define EFI_SCSI_TYPE_PRINTER 0x02 ///< Printer device
> +#define EFI_SCSI_TYPE_PROCESSOR 0x03 ///< Processor device
> +#define EFI_SCSI_TYPE_WORM 0x04 ///< Write-once device (e.g.
> some optical disks)
> +#define EFI_SCSI_TYPE_CDROM 0x05 ///< CD/DVD device
> +#define EFI_SCSI_TYPE_SCANNER 0x06 ///< Scanner device (obsolete)
> +#define EFI_SCSI_TYPE_OPTICAL 0x07 ///< Optical memory device (e.g.
> some optical disks)
> +#define EFI_SCSI_TYPE_MEDIUMCHANGER 0x08 ///< Medium changer
> device (e.g. jukeboxes)
> +#define EFI_SCSI_TYPE_COMMUNICATION 0x09 ///< Communications
> device (obsolete)
> +#define EFI_SCSI_TYPE_ASCIT8_1 0x0A ///< Defined by ASC IT8
> (Graphic arts pre-press devices)
> +#define EFI_SCSI_TYPE_ASCIT8_2 0x0B ///< Defined by ASC IT8
> (Graphic arts pre-press devices)
> +#define EFI_SCSI_TYPE_RAID 0x0C ///< Storage array controller
> device (e.g., RAID)
> +#define EFI_SCSI_TYPE_SES 0x0D ///< Enclosure services device
> +#define EFI_SCSI_TYPE_RBC 0x0E ///< Simplified direct-access device
> (e.g., magnetic disk)
> +#define EFI_SCSI_TYPE_OCRW 0x0F ///< Optical card reader/writer
> device
> +#define EFI_SCSI_TYPE_BRIDGE 0x10 ///< Bridge Controller Commands
> +#define EFI_SCSI_TYPE_OSD 0x11 ///< Object-based Storage Device
> +#define EFI_SCSI_TYPE_AUTOMATION 0x12 ///< Automation/Drive
> Interface
> +#define EFI_SCSI_TYPE_SECURITYMANAGER 0x13 ///< Security manager
> device
> +#define EFI_SCSI_TYPE_RESERVED_LOW 0x14 ///< Reserved (low)
> +#define EFI_SCSI_TYPE_RESERVED_HIGH 0x1D ///< Reserved (high)
> +#define EFI_SCSI_TYPE_WLUN 0x1E ///< Well known logical unit
> +#define EFI_SCSI_TYPE_UNKNOWN 0x1F ///< Unknown or no device
> type
>
> //
> // Page Codes for INQUIRY command
> diff --git a/MdePkg/Include/Library/UefiScsiLib.h
> b/MdePkg/Include/Library/UefiScsiLib.h
> index 10dd81902b..5c94b0aa16 100644
> --- a/MdePkg/Include/Library/UefiScsiLib.h
> +++ b/MdePkg/Include/Library/UefiScsiLib.h
> @@ -5,7 +5,7 @@
> for hard drive, CD and DVD devices that are the most common SCSI boot
> targets used by UEFI platforms.
> This library class depends on SCSI I/O Protocol defined in UEFI Specification
> and SCSI-2 industry standard.
>
> -Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> +Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> **/
> @@ -813,6 +813,132 @@ ScsiWrite16Command (
> );
>
>
> +/**
> + Execute Security Protocol In SCSI command on a specific SCSI target.
> +
> + Executes the SCSI Security Protocol In command on the SCSI target
> specified by ScsiIo.
> + If Timeout is zero, then this function waits indefinitely for the command to
> complete.
> + If Timeout is greater than zero, then the command is executed and will
> timeout after
> + Timeout 100 ns units.
> + If ScsiIo is NULL, then ASSERT().
> + If SenseDataLength is NULL, then ASSERT().
> + If HostAdapterStatus is NULL, then ASSERT().
> + If TargetStatus is NULL, then ASSERT().
> + If TransferLength is NULL, then ASSERT().
> +
> + If SenseDataLength is non-zero and SenseData is not NULL, SenseData
> must meet buffer
> + alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
> EFI_INVALID_PARAMETER
> + gets returned.
> +
> + If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must
> meet buffer
> + alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
> EFI_INVALID_PARAMETER
> + gets returned.
> +
> + @param[in] ScsiIo SCSI IO Protocol to use.
> + @param[in] Timeout The length of timeout period.
> + @param[in, out] SenseData A pointer to output sense data.
> + @param[in, out] SenseDataLength The length of output sense data.
> + @param[out] HostAdapterStatus The status of Host Adapter.
> + @param[out] TargetStatus The status of the target.
> + @param[in] SecurityProtocol The Security Protocol to use.
> + @param[in] SecurityProtocolSpecific The Security Protocol Specific data.
> + @param[in] Inc512 If Inc512 is TRUE, DataLength is expressed
> in 512-byte increments.
> + @param[in] DataLength The size in bytes of the data buffer.
> + @param[in, out] DataBuffer A pointer to a data buffer.
> + @param[out] TransferLength A pointer to a buffer to store the size
> in
> + bytes of the data written to the data buffer.
> +
> + @retval EFI_SUCCESS Command is executed successfully.
> + @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was
> executed, but the entire DataBuffer could
> + not be transferred. The actual number of bytes
> transferred is returned in TransferLength.
> + @retval EFI_NOT_READY The SCSI Request Packet could not be
> sent because there are too many
> + SCSI Command Packets already queued.
> + @retval EFI_DEVICE_ERROR A device error occurred while
> attempting to send SCSI Request Packet.
> + @retval EFI_UNSUPPORTED The command described by the SCSI
> Request Packet is not supported by
> + the SCSI initiator(i.e., SCSI Host Controller)
> + @retval EFI_TIMEOUT A timeout occurred while waiting for the
> SCSI Request Packet to execute.
> + @retval EFI_INVALID_PARAMETER The contents of the SCSI Request
> Packet are invalid.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +ScsiSecurityProtocolInCommand (
> + IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
> + IN UINT64 Timeout,
> + IN OUT VOID *SenseData, OPTIONAL
> + IN OUT UINT8 *SenseDataLength,
> + OUT UINT8 *HostAdapterStatus,
> + OUT UINT8 *TargetStatus,
> + IN UINT8 SecurityProtocol,
> + IN UINT16 SecurityProtocolSpecific,
> + IN BOOLEAN Inc512,
> + IN UINTN DataLength,
> + IN OUT VOID *DataBuffer, OPTIONAL
> + OUT UINTN *TransferLength
> + );
> +
> +
> +/**
> + Execute Security Protocol Out SCSI command on a specific SCSI target.
> +
> + Executes the SCSI Security Protocol Out command on the SCSI target
> specified by ScsiIo.
> + If Timeout is zero, then this function waits indefinitely for the command to
> complete.
> + If Timeout is greater than zero, then the command is executed and will
> timeout after
> + Timeout 100 ns units.
> + If ScsiIo is NULL, then ASSERT().
> + If SenseDataLength is NULL, then ASSERT().
> + If HostAdapterStatus is NULL, then ASSERT().
> + If TargetStatus is NULL, then ASSERT().
> +
> + If SenseDataLength is non-zero and SenseData is not NULL, SenseData
> must meet buffer
> + alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
> EFI_INVALID_PARAMETER
> + gets returned.
> +
> + If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must
> meet buffer
> + alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
> EFI_INVALID_PARAMETER
> + gets returned.
> +
> + @param[in] ScsiIo SCSI IO Protocol to use.
> + @param[in] Timeout The length of timeout period.
> + @param[in, out] SenseData A pointer to output sense data.
> + @param[in, out] SenseDataLength The length of output sense data.
> + @param[out] HostAdapterStatus The status of Host Adapter.
> + @param[out] TargetStatus The status of the target.
> + @param[in] SecurityProtocol The Security Protocol to use.
> + @param[in] SecurityProtocolSpecific The Security Protocol Specific data.
> + @param[in] Inc512 If Inc512 is TRUE, DataLength is expressed
> in 512-byte increments.
> + @param[in] DataLength The size in bytes of the transfer data.
> + @param[in, out] DataBuffer A pointer to a data buffer.
> +
> + @retval EFI_SUCCESS Command is executed successfully.
> + @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was
> executed, but the entire DataBuffer could
> + not be transferred. The actual number of bytes
> transferred is returned in DataLength.
> + @retval EFI_NOT_READY The SCSI Request Packet could not be
> sent because there are too many
> + SCSI Command Packets already queued.
> + @retval EFI_DEVICE_ERROR A device error occurred while
> attempting to send SCSI Request Packet.
> + @retval EFI_UNSUPPORTED The command described by the SCSI
> Request Packet is not supported by
> + the SCSI initiator(i.e., SCSI Host Controller)
> + @retval EFI_TIMEOUT A timeout occurred while waiting for the
> SCSI Request Packet to execute.
> + @retval EFI_INVALID_PARAMETER The contents of the SCSI Request
> Packet are invalid.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +ScsiSecurityProtocolOutCommand (
> + IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
> + IN UINT64 Timeout,
> + IN OUT VOID *SenseData, OPTIONAL
> + IN OUT UINT8 *SenseDataLength,
> + OUT UINT8 *HostAdapterStatus,
> + OUT UINT8 *TargetStatus,
> + IN UINT8 SecurityProtocol,
> + IN UINT16 SecurityProtocolSpecific,
> + IN BOOLEAN Inc512,
> + IN UINTN DataLength,
> + IN OUT VOID *DataBuffer OPTIONAL
> + );
> +
> +
> /**
> Execute blocking/non-blocking Read(10) SCSI command on a specific SCSI
> target.
> diff --git a/MdePkg/Library/UefiScsiLib/UefiScsiLib.c
> b/MdePkg/Library/UefiScsiLib/UefiScsiLib.c
> index c7491d1436..229fe11ef2 100644
> --- a/MdePkg/Library/UefiScsiLib/UefiScsiLib.c
> +++ b/MdePkg/Library/UefiScsiLib/UefiScsiLib.c
> @@ -1,7 +1,7 @@
> /** @file
> UEFI SCSI Library implementation
>
> - Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> + Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> **/
> @@ -23,6 +23,7 @@
> //
> #define EFI_SCSI_OP_LENGTH_SIX 0x6
> #define EFI_SCSI_OP_LENGTH_TEN 0xa
> +#define EFI_SCSI_OP_LENGTH_TWELVE 0xc
> #define EFI_SCSI_OP_LENGTH_SIXTEEN 0x10
>
> //
> @@ -1280,6 +1281,220 @@ ScsiWrite16Command (
> }
>
>
> +/**
> + Execute Security Protocol In SCSI command on a specific SCSI target.
> +
> + Executes the SCSI Security Protocol In command on the SCSI target
> specified by ScsiIo.
> + If Timeout is zero, then this function waits indefinitely for the command to
> complete.
> + If Timeout is greater than zero, then the command is executed and will
> timeout after
> + Timeout 100 ns units.
> + If ScsiIo is NULL, then ASSERT().
> + If SenseDataLength is NULL, then ASSERT().
> + If HostAdapterStatus is NULL, then ASSERT().
> + If TargetStatus is NULL, then ASSERT().
> + If TransferLength is NULL, then ASSERT().
> +
> + If SenseDataLength is non-zero and SenseData is not NULL, SenseData
> must meet buffer
> + alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
> EFI_INVALID_PARAMETER
> + gets returned.
> +
> + If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must
> meet buffer
> + alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
> EFI_INVALID_PARAMETER
> + gets returned.
> +
> + @param[in] ScsiIo SCSI IO Protocol to use.
> + @param[in] Timeout The length of timeout period.
> + @param[in, out] SenseData A pointer to output sense data.
> + @param[in, out] SenseDataLength The length of output sense data.
> + @param[out] HostAdapterStatus The status of Host Adapter.
> + @param[out] TargetStatus The status of the target.
> + @param[in] SecurityProtocol The Security Protocol to use.
> + @param[in] SecurityProtocolSpecific The Security Protocol Specific data.
> + @param[in] Inc512 If Inc512 is TRUE, DataLength is expressed
> in 512-byte increments.
> + @param[in] DataLength The size in bytes of the data buffer.
> + @param[in, out] DataBuffer A pointer to a data buffer.
> + @param[out] TransferLength A pointer to a buffer to store the size
> in
> + bytes of the data written to the data buffer.
> +
> + @retval EFI_SUCCESS Command is executed successfully.
> + @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was
> executed, but the entire DataBuffer could
> + not be transferred. The actual number of bytes
> transferred is returned in TransferLength.
> + @retval EFI_NOT_READY The SCSI Request Packet could not be
> sent because there are too many
> + SCSI Command Packets already queued.
> + @retval EFI_DEVICE_ERROR A device error occurred while
> attempting to send SCSI Request Packet.
> + @retval EFI_UNSUPPORTED The command described by the SCSI
> Request Packet is not supported by
> + the SCSI initiator(i.e., SCSI Host Controller)
> + @retval EFI_TIMEOUT A timeout occurred while waiting for the
> SCSI Request Packet to execute.
> + @retval EFI_INVALID_PARAMETER The contents of the SCSI Request
> Packet are invalid.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +ScsiSecurityProtocolInCommand (
> + IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
> + IN UINT64 Timeout,
> + IN OUT VOID *SenseData, OPTIONAL
> + IN OUT UINT8 *SenseDataLength,
> + OUT UINT8 *HostAdapterStatus,
> + OUT UINT8 *TargetStatus,
> + IN UINT8 SecurityProtocol,
> + IN UINT16 SecurityProtocolSpecific,
> + IN BOOLEAN Inc512,
> + IN UINTN DataLength,
> + IN OUT VOID *DataBuffer, OPTIONAL
> + OUT UINTN *TransferLength
> + )
> +{
> + EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
> + EFI_STATUS Status;
> + UINT8 Cdb[EFI_SCSI_OP_LENGTH_TWELVE];
> +
> + ASSERT (SenseDataLength != NULL);
> + ASSERT (HostAdapterStatus != NULL);
> + ASSERT (TargetStatus != NULL);
> + ASSERT (ScsiIo != NULL);
> + ASSERT (TransferLength != NULL);
> + ASSERT (DataLength <= MAX_UINT32);
> +
> + ZeroMem (&CommandPacket, sizeof
> (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
> + ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TWELVE);
> +
> + CommandPacket.Timeout = Timeout;
> + CommandPacket.InDataBuffer = DataBuffer;
> + CommandPacket.SenseData = SenseData;
> + CommandPacket.InTransferLength = (UINT32) DataLength;
I think if 'Inc512' is TRUE, the above statement may not be proper.
My thought is that the 'Inc512' parameter only affects whether the Cdb[4] bit 7
will be set or not:
@param[in] Inc512 If TRUE, 512 increment (INC_512) bit will be set for the
SECURITY PROTOCOL IN command.
and for Cdb[6]:
if (Inc512) {
if (DataLength % 512 != 0) {
return EFI_INVALID_PARAMETER;
}
Cdb[4] = BIT7;
WriteUnaligned32 ((UINT32 *)&Cdb[6], SwapBytes32 ((UINT32) DataLength / 512));
} else {
WriteUnaligned32 ((UINT32 *)&Cdb[6], SwapBytes32 ((UINT32) DataLength));
}
Similar comment for the function ScsiSecurityProtocolOutCommand() as well.
Other than this, the patch looks good to me.
Best Regards,
Hao Wu
> + CommandPacket.Cdb = Cdb;
> + //
> + // Fill Cdb for Security Protocol In Command
> + //
> + Cdb[0] = EFI_SCSI_OP_SECURITY_PROTOCOL_IN;
> + Cdb[1] = SecurityProtocol;
> + WriteUnaligned16 ((UINT16 *)&Cdb[2], SwapBytes16
> (SecurityProtocolSpecific));
> + WriteUnaligned32 ((UINT32 *)&Cdb[6], SwapBytes32 ((UINT32)
> DataLength));
> +
> + if (Inc512) {
> + Cdb[4] = BIT7;
> + }
> +
> + CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TWELVE;
> + CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
> + CommandPacket.SenseDataLength = *SenseDataLength;
> +
> + Status = ScsiIo->ExecuteScsiCommand (ScsiIo,
> &CommandPacket, NULL);
> +
> + *HostAdapterStatus = CommandPacket.HostAdapterStatus;
> + *TargetStatus = CommandPacket.TargetStatus;
> + *SenseDataLength = CommandPacket.SenseDataLength;
> + *TransferLength = (UINTN) CommandPacket.InTransferLength;
> +
> + return Status;
> +}
> +
> +
> +/**
> + Execute Security Protocol Out SCSI command on a specific SCSI target.
> +
> + Executes the SCSI Security Protocol Out command on the SCSI target
> specified by ScsiIo.
> + If Timeout is zero, then this function waits indefinitely for the command to
> complete.
> + If Timeout is greater than zero, then the command is executed and will
> timeout after
> + Timeout 100 ns units.
> + If ScsiIo is NULL, then ASSERT().
> + If SenseDataLength is NULL, then ASSERT().
> + If HostAdapterStatus is NULL, then ASSERT().
> + If TargetStatus is NULL, then ASSERT().
> +
> + If SenseDataLength is non-zero and SenseData is not NULL, SenseData
> must meet buffer
> + alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
> EFI_INVALID_PARAMETER
> + gets returned.
> +
> + If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must
> meet buffer
> + alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
> EFI_INVALID_PARAMETER
> + gets returned.
> +
> + @param[in] ScsiIo SCSI IO Protocol to use.
> + @param[in] Timeout The length of timeout period.
> + @param[in, out] SenseData A pointer to output sense data.
> + @param[in, out] SenseDataLength The length of output sense data.
> + @param[out] HostAdapterStatus The status of Host Adapter.
> + @param[out] TargetStatus The status of the target.
> + @param[in] SecurityProtocol The Security Protocol to use.
> + @param[in] SecurityProtocolSpecific The Security Protocol Specific data.
> + @param[in] Inc512 If Inc512 is TRUE, DataLength is expressed
> in 512-byte increments.
> + @param[in] DataLength The size in bytes of the transfer data.
> + @param[in, out] DataBuffer A pointer to a data buffer.
> +
> + @retval EFI_SUCCESS Command is executed successfully.
> + @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was
> executed, but the entire DataBuffer could
> + not be transferred. The actual number of bytes
> transferred is returned in DataLength.
> + @retval EFI_NOT_READY The SCSI Request Packet could not be
> sent because there are too many
> + SCSI Command Packets already queued.
> + @retval EFI_DEVICE_ERROR A device error occurred while
> attempting to send SCSI Request Packet.
> + @retval EFI_UNSUPPORTED The command described by the SCSI
> Request Packet is not supported by
> + the SCSI initiator(i.e., SCSI Host Controller)
> + @retval EFI_TIMEOUT A timeout occurred while waiting for the
> SCSI Request Packet to execute.
> + @retval EFI_INVALID_PARAMETER The contents of the SCSI Request
> Packet are invalid.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +ScsiSecurityProtocolOutCommand (
> + IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
> + IN UINT64 Timeout,
> + IN OUT VOID *SenseData, OPTIONAL
> + IN OUT UINT8 *SenseDataLength,
> + OUT UINT8 *HostAdapterStatus,
> + OUT UINT8 *TargetStatus,
> + IN UINT8 SecurityProtocol,
> + IN UINT16 SecurityProtocolSpecific,
> + IN BOOLEAN Inc512,
> + IN UINTN DataLength,
> + IN OUT VOID *DataBuffer OPTIONAL
> + )
> +{
> + EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
> + EFI_STATUS Status;
> + UINT8 Cdb[EFI_SCSI_OP_LENGTH_TWELVE];
> +
> + ASSERT (SenseDataLength != NULL);
> + ASSERT (HostAdapterStatus != NULL);
> + ASSERT (TargetStatus != NULL);
> + ASSERT (ScsiIo != NULL);
> + ASSERT (DataLength <= MAX_UINT32);
> +
> + ZeroMem (&CommandPacket, sizeof
> (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
> + ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TWELVE);
> +
> + CommandPacket.Timeout = Timeout;
> + CommandPacket.OutDataBuffer = DataBuffer;
> + CommandPacket.SenseData = SenseData;
> + CommandPacket.OutTransferLength = (UINT32) DataLength;
> + CommandPacket.Cdb = Cdb;
> + //
> + // Fill Cdb for Security Protocol Out Command
> + //
> + Cdb[0] = EFI_SCSI_OP_SECURITY_PROTOCOL_OUT;
> + Cdb[1] = SecurityProtocol;
> + WriteUnaligned16 ((UINT16 *)&Cdb[2], SwapBytes16
> (SecurityProtocolSpecific));
> + WriteUnaligned32 ((UINT32 *)&Cdb[6], SwapBytes32 ((UINT32)
> DataLength));
> +
> + if (Inc512) {
> + Cdb[4] = BIT7;
> + }
> +
> + CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TWELVE;
> + CommandPacket.DataDirection = EFI_SCSI_DATA_OUT;
> + CommandPacket.SenseDataLength = *SenseDataLength;
> +
> + Status = ScsiIo->ExecuteScsiCommand (ScsiIo,
> &CommandPacket, NULL);
> +
> + *HostAdapterStatus = CommandPacket.HostAdapterStatus;
> + *TargetStatus = CommandPacket.TargetStatus;
> + *SenseDataLength = CommandPacket.SenseDataLength;
> +
> + return Status;
> +}
> +
> +
> /**
> Internal helper notify function in which update the result of the
> non-blocking SCSI Read/Write commands and signal caller event.
> --
> 2.16.2.windows.1
>
>
>
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