读取光驱driver信息的方法

最新推荐文章于 2024-12-02 16:37:52 发布

purplethunder

最新推荐文章于 2024-12-02 16:37:52 发布

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文章标签： reference report struct cmd buffer scheme

本文链接：https://blog.youkuaiyun.com/purplethunder/article/details/1534250

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本文介绍如何通过SCSI_PASS_THROUGH_DIRECT结构和DeviceIoControl API来读取光驱的驱动信息，包括Vendor ID、Product ID、Product Revision Level以及区域控制信息。示例代码展示了查询和打印设备信息的步骤。

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使用 SCSI cmd获得driver信息
主要有下面2个文件：scsi_struct.h

// ------------------------scsi_struct.h--------------------------------------
#include < windows.h >

// If this was not defined we should also assume that some structs are not defined as well
#ifndef IOCTL_SCSI_PASS_THROUGH_DIRECT

#define IOCTL_SCSI_PASS_THROUGH_DIRECT 0x4D014
#define SCSI_IOCTL_DATA_OUT          0
#define SCSI_IOCTL_DATA_IN           1
#define SCSI_IOCTL_DATA_UNSPECIFIED  2

// Reference [2]
typedef struct _SCSI_PASS_THROUGH_DIRECT
{
  USHORT Length;
  UCHAR ScsiStatus;
  UCHAR PathId;
  UCHAR TargetId;
  UCHAR Lun;
  UCHAR CdbLength;
  UCHAR SenseInfoLength;
  UCHAR DataIn;
  ULONG DataTransferLength;
  ULONG TimeOutValue;
  PVOID DataBuffer;
  ULONG SenseInfoOffset;
  UCHAR Cdb[ 16 ];
} SCSI_PASS_THROUGH_DIRECT, * PSCSI_PASS_THROUGH_DIRECT;

#endif

#pragma pack(1)

/* !
Reference [1] page 528
*/
enum MMC_KEY_FORMAT_CODE_CLASS0
{
  KEY_FORMAT_AGID_CSS   = 0 ,
  KEY_FORMAT_CHAL_KEY   = 1 ,
  KEY_FORMAT_KEY1   = 2 ,
  KEY_FORMAT_TITLE_KEY   = 4 ,
  KEY_FORMAT_ASF    = 5 ,
  KEY_FORMAT_RPC_STATE   = 8 ,
  KEY_FORMAT_AGID_CPRM   = 0x11 ,
  KEY_FORMAT_NONE   = 0x3F
};

/* !
The type code field specifies the current state of regionalization process
Reference [1] Table 524, page 533
*/
enum RPC_STATE_TYPE_CODES
{
   // ! No drive region
  RPC_STATE_TYPECODE_NONE = 0 ,
   // ! Drive region is set
  RPC_STATE_TYPECODE_SET = 1 ,
   // ! Drive region is set. Additional restrictions required to make changes
  RPC_STATE_TYPECODE_LAST_CHANCE = 2 ,
   // ! Drive region has been set permamently, but may be reset by vendor
  RPC_STATE_TYPECODE_PERM   = 3
};

/* !
RPC Scheme specifies the type of Region Playback Controls being used by the Drive
*/
enum RPC_STATE_SCHEMES
{
   // !Drive does not enforce Region Playback Controls (RPC)
  RPC_STATE_SCHEMES_UNK = 0 ,
   /* !
  Drive region shall adhere to this standard and all requirements of the CSS
  license agreement concerning RPC.
   */
  RPC_STATE_SCHEMES_RPC2 = 1
};

/* !
  This structure is returned when a REPORT_KEY is executed with key type = 8
  Reference [1]p.533
*/
typedef struct _REPORT_KEY_DATA_RPC_STATE
{
   char rsvrd1[ 4 ];

   //