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150 lines
4.0 KiB
C++
150 lines
4.0 KiB
C++
#include <windows.h>
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#include <stddef.h> // for offsetof
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#include <winioctl.h>
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#include <strsafe.h>
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typedef struct {
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USHORT Length;
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UCHAR ScsiStatus;
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UCHAR PathId;
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UCHAR TargetId;
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UCHAR Lun;
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UCHAR CdbLength;
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UCHAR SenseInfoLength;
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UCHAR DataIn;
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ULONG DataTransferLength;
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ULONG TimeOutValue;
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PVOID DataBuffer;
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ULONG SenseInfoOffset;
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UCHAR Cdb[16];
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} SCSI_PASS_THROUGH_DIRECT, *PSCSI_PASS_THROUGH_DIRECT;
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typedef struct {
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SCSI_PASS_THROUGH_DIRECT spt;
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ULONG Filler;
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UCHAR ucSenseBuf[32];
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} SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER, *PSCSI_PASS_THROUGH_DIRECT_WITH_BUFFER;
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#define IOCTL_SCSI_BASE 0x00000004
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/*
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* constants for DataIn member of SCSI_PASS_THROUGH* structures
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*/
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#define SCSI_IOCTL_DATA_OUT 0
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#define SCSI_IOCTL_DATA_IN 1
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#define SCSI_IOCTL_DATA_UNSPECIFIED 2
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/*
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* Standard IOCTL define
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*/
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#define CTL_CODE( DevType, Function, Method, Access ) ( \
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((DevType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) \
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)
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#define IOCTL_SCSI_PASS_THROUGH CTL_CODE( IOCTL_SCSI_BASE, 0x0401, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS )
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#define IOCTL_SCSI_MINIPORT CTL_CODE( IOCTL_SCSI_BASE, 0x0402, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS )
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#define IOCTL_SCSI_GET_INQUIRY_DATA CTL_CODE( IOCTL_SCSI_BASE, 0x0403, METHOD_BUFFERED, FILE_ANY_ACCESS)
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#define IOCTL_SCSI_GET_CAPABILITIES CTL_CODE( IOCTL_SCSI_BASE, 0x0404, METHOD_BUFFERED, FILE_ANY_ACCESS)
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#define IOCTL_SCSI_PASS_THROUGH_DIRECT CTL_CODE( IOCTL_SCSI_BASE, 0x0405, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS )
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#define IOCTL_SCSI_GET_ADDRESS CTL_CODE( IOCTL_SCSI_BASE, 0x0406, METHOD_BUFFERED, FILE_ANY_ACCESS
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static bool scsi_inquiry(HANDLE deviceHandle, UCHAR page, UCHAR *inqbuf, size_t &buf_len)
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{
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char buf[2048] = {0};
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BOOL status;
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PSCSI_PASS_THROUGH_DIRECT_WITH_BUFFER pswb;
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DWORD length=0, returned=0;
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/*
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* Get the drive inquiry data
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*/
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ZeroMemory( &buf, 2048 );
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ZeroMemory( inqbuf, buf_len );
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pswb = (PSCSI_PASS_THROUGH_DIRECT_WITH_BUFFER)buf;
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pswb->spt.Length = sizeof(SCSI_PASS_THROUGH_DIRECT);
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pswb->spt.CdbLength = 6;
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pswb->spt.SenseInfoLength = 32;
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pswb->spt.DataIn = SCSI_IOCTL_DATA_IN;
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pswb->spt.DataTransferLength = buf_len;
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pswb->spt.TimeOutValue = 2;
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pswb->spt.DataBuffer = inqbuf;
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pswb->spt.SenseInfoOffset = offsetof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER,ucSenseBuf);
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pswb->spt.Cdb[0] = 0x12;
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pswb->spt.Cdb[1] = 0x1;
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pswb->spt.Cdb[2] = page;
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pswb->spt.Cdb[4] = (UCHAR)buf_len;
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length = sizeof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER);
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status = DeviceIoControl( deviceHandle,
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IOCTL_SCSI_PASS_THROUGH_DIRECT,
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pswb,
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length,
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pswb,
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length,
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&returned,
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NULL );
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if (status && returned >3)
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{
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buf_len=returned;
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return true;
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}
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else
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{
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buf_len=0;
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return false;
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}
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}
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static bool AddPagetoXML(HANDLE dev, char *&dest, size_t &destlen, UCHAR page)
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{
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UCHAR buf[256] = {0};
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size_t buflen=255;
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if (scsi_inquiry(dev, page, buf, buflen))
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{
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size_t len = buf[3];
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StringCchCopyNExA(dest, destlen, (char *)buf+4, len, &dest, &destlen, 0);
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return true;
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}
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return false;
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}
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static bool BuildXML(HANDLE dev, char *xml, size_t xmllen)
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{
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*xml=0;
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UCHAR pages[255] = {0};
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size_t pageslen=255;
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if (scsi_inquiry(dev, 0xc0, pages, pageslen) && pageslen>3)
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{
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unsigned char numPages=pages[3];
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if (numPages+4 <= 255)
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{
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for (int i=0;i<numPages;i++)
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{
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if (!AddPagetoXML(dev, xml, xmllen, pages[i+4]))
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return false;
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}
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}
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}
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return true;
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}
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bool ParseSysInfoXML(wchar_t drive_letter, char * xml, int xmllen)
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{
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wchar_t fn[MAX_PATH] = {0};
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StringCchPrintf(fn, MAX_PATH, L"\\\\.\\%c:", drive_letter);
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HANDLE hfile = CreateFileW(fn, GENERIC_WRITE|GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0);
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if (hfile != INVALID_HANDLE_VALUE)
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{
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bool ret = BuildXML(hfile, xml, xmllen);
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CloseHandle(hfile);
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return ret;
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}
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return false;
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}
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