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  • note : Get FilePathName from FILE_OBJECT

    转自：http://blog.csdn.net/lostspeed/article/details/11738311

    封了一个函数, 从 FILE_OBJECT 中 得到 FilePathName

    在WinXpSp3下测试通过.


    函数定义

    1. BOOLEAN IsValidUnicodeString(PUNICODE_STRING pstr);  
    1. BOOLEAN GetFilePathNameFromFileObject(  
    2.     FILE_OBJECT * pFileObj,   
    3.     UNICODE_STRING * puniFilePathName);  


    函数实现

    1. BOOLEAN GetFilePathNameFromFileObject(  
    2.     FILE_OBJECT * pFileObj,   
    3.     UNICODE_STRING * puniFilePathName)  
    4. {  
    5.     /// puniFilePathName 已经被 RtlInitUnicodeString 初始化过,   
    6.     /// .Buffer 有MAX_PATH宽字符长度  
    7.       
    8.     BOOLEAN bValidFN_FileObj = FALSE;  
    9.     BOOLEAN bValidFN_RelatedFileObj = FALSE;  
    10.   
    11.     PFILE_OBJECT pRelatedFileObject = NULL;  
    12.     UNICODE_STRING ustrTmp;  
    13.     UNICODE_STRING ustrLink; ///< 分隔符号, e.g. L'\'  
    14.   
    15.     if ((NULL == pFileObj) || (NULL == puniFilePathName))  
    16.         return FALSE;  
    17.   
    18.     /// 初始化数据  
    19.     RtlInitUnicodeString(&ustrTmp, NULL);  
    20.     RtlInitUnicodeString(&ustrLink, L"\");  
    21.     RtlZeroMemory(puniFilePathName->Buffer, puniFilePathName->MaximumLength);  
    22.     puniFilePathName->Length = 0;  
    23.   
    24.     pRelatedFileObject = pFileObj->RelatedFileObject;  
    25.     bValidFN_FileObj = IsValidUnicodeString(&pFileObj->FileName);  
    26.     bValidFN_RelatedFileObj =   
    27.         IsValidUnicodeString(&pRelatedFileObject->FileName);  
    28.   
    29.     /// 盘符  
    30.     IoVolumeDeviceToDosName(pFileObj->DeviceObject, &ustrTmp);  
    31.     RtlCopyUnicodeString(puniFilePathName, &ustrTmp);  
    32.     RtlFreeUnicodeString(&ustrTmp); ///< !  
    33.       
    34.     /// 相对路径  
    35.     /// pRelatedFileObject->FileName 也有可能是空的  
    36.     /// 相对全路径名称全部在 pFileObj->FileName  
    37.     if (bValidFN_RelatedFileObj)  
    38.     {  
    39.         /// pRelatedFileObject->FileName.Buffer 可能是有效的  
    40.         /// 却不是一个可见的宽字符串, 以 L''开头  
    41.         if ((L'\' != pRelatedFileObject->FileName.Buffer[0])  
    42.             &&(L'' != pRelatedFileObject->FileName.Buffer[0]))  
    43.         {  
    44.             RtlUnicodeStringCat(puniFilePathName, &ustrLink);  
    45.         }  
    46.               
    47.         RtlUnicodeStringCat(puniFilePathName, &pRelatedFileObject->FileName);  
    48.     }  
    49.   
    50.     /// 文件名, 也有可能是包含相对路径的全路径名称.  
    51.     /// e.g. "WindowsSystemxx.yyy"  
    52.     if (bValidFN_FileObj)  
    53.     {  
    54.         if ((L'\' != pFileObj->FileName.Buffer[0])  
    55.             && (L'' != pFileObj->FileName.Buffer[0]))  
    56.         {  
    57.             RtlUnicodeStringCat(puniFilePathName, &ustrLink);  
    58.         }  
    59.   
    60.         RtlUnicodeStringCat(puniFilePathName, &pFileObj->FileName);  
    61.     }  
    62.   
    63.     return (bValidFN_FileObj || bValidFN_RelatedFileObj);  
    64. }  
    1. BOOLEAN IsValidUnicodeString(PUNICODE_STRING pstr)  
    2. {  
    3.     BOOLEAN bRc = FALSE;  
    4.     ULONG   ulIndex = 0;  
    5.   
    6.     __try  
    7.     {  
    8.         if (!MmIsAddressValid(pstr))  
    9.             return FALSE;  
    10.   
    11.         if ((NULL == pstr->Buffer) || (0 == pstr->Length))  
    12.             return FALSE;  
    13.   
    14.         for (ulIndex = 0; ulIndex < pstr->Length; ulIndex++)  
    15.         {  
    16.             if (!MmIsAddressValid((UCHAR *)pstr->Buffer + ulIndex))  
    17.                 return FALSE;  
    18.         }  
    19.   
    20.         bRc = TRUE;  
    21.     }  
    22.       
    23.     __except(EXCEPTION_EXECUTE_HANDLER)  
    24.     {  
    25.         bRc = FALSE;  
    26.     }  
    27.   
    28.     return bRc;  
    29. }  

    在分派例程中得到 FILE_OBJECT 方法

    1. pIoStack = IoGetCurrentIrpStackLocation(pIrp);  
    1. pFileObject = pIoStack->FileObject;  


    入参的准备

    1. WCHAR               cFilePathNameW[MAX_PATH];  
    2. UNICODE_STRING      unistrFilePathName;  
    3.   
    4. RtlZeroMemory(cFilePathNameW, sizeof(cFilePathNameW));  
    5. RtlInitUnicodeString(&unistrFilePathName, cFilePathNameW);  
    6. unistrFilePathName.MaximumLength = sizeof(cFilePathNameW); ///< !  


    效果图

      1. DisPatchDeviceControl IOCTL 0x22e000  
      2. cFilePathName[0] = C:   
      3. cFilePathName[1] = C:Documents and SettingsAll UsersApplication DataVMware   
      4. cFilePathName[2] = C:Documents and SettingsAll UsersApplication DataVMwareVMware Tools   
      5. cFilePathName[3] = C:Documents and SettingsAll UsersApplication DataVMwareVMware Tools   
      6. cFilePathName[4] = C:WINDOWSsystem32Msimtf.dll   
      7. cFilePathName[5] = C:WINDOWSsystem32NOTEPAD.EXE   
      8. cFilePathName[6] = C:WINDOWSAppPatchsysmain.sdb   
      9. cFilePathName[7] = C:WINDOWSAppPatchsystest.sdb   
      10. cFilePathName[8] = C:WINDOWSsystem32   
      11. cFilePathName[9] = C:WINDOWS   
      12. cFilePathName[10] = C:WINDOWSsystem32NOTEPAD.EXE.Manifest   
      13. cFilePathName[11] = C:WINDOWSsystem32NOTEPAD.EXE.Config   
      14. cFilePathName[12] = C:WINDOWSWinSxSPoliciesx86_Policy.6.0.Microsoft.Windows.Common-Controls_6595b64144ccf1df_zh-CN_f3ffe327   
      15. cFilePathName[13] = C:WINDOWSAssemblyGACPolicy.6.0.Microsoft.Windows.Common-Controls   
      16. cFilePathName[14] = C:WINDOWSWinSxSPoliciesx86_Policy.6.0.Microsoft.Windows.Common-Controls_6595b64144ccf1df_zh-CHS_6bff526c   
      17. cFilePathName[15] = C:WINDOWSWinSxSPoliciesx86_Policy.6.0.Microsoft.Windows.Common-Controls_6595b64144ccf1df_x-ww_5ddad775   
      18. cFilePathName[16] = C:WINDOWSWinSxSPoliciesx86_Policy.6.0.Microsoft.Windows.Common-Controls_6595b64144ccf1df_x-ww_5ddad7756.0.2600.5512.Policy   
      19. cFilePathName[17] = C:WINDOWSWinSxSPoliciesx86_Policy.6.0.Microsoft.Windows.Common-Controls.mui_6595b64144ccf1df_zh-CN_b45a2b14   
      20. cFilePathName[18] = C:WINDOWSAssemblyGACPolicy.6.0.Microsoft.Windows.Common-Controls.mui   
      21. cFilePathName[19] = C:WINDOWSWinSxSPoliciesx86_Policy.6.0.Microsoft.Windows.Common-Controls.mui_6595b64144ccf1df_zh-CHS_2c599a59   
      22. cFilePathName[20] = C:WINDOWSWinSxSManifestsx86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83.Manifest   
      23. cFilePathName[21] = C:WINDOWSPrefetchNOTEPAD.EXE-336351A9.pf   
      24. cFilePathName[22] = C:Documents and SettingsAdministrator   
      25. cFilePathName[23] = C:Documents and SettingsAdministrator桌面   
      26. cFilePathName[24] = C:DOCUME~1   
      27. cFilePathName[25] = C:DOCUME~1ADMINI~1   
      28. cFilePathName[26] = C:DOCUME~1ADMINI~1LOCALS~1   
      29. cFilePathName[27] = C:Documents and SettingsAdministrator桌面abc.txt   
      30. cFilePathName[28] = C:Documents and SettingsAdministrator桌面   
      31. cFilePathName[29] = C:SYSTEM VOLUME INFORMATION   
      32. cFilePathName[30] = C:Documents and SettingsAdministratorRecent   
      33. cFilePathName[31] = C:Documents and SettingsAdministratorRecentabc.txt.lnk   
      34. cFilePathName[32] = C:SYSTEM VOLUME INFORMATION\_RESTORE{288FCF24-DDBA-4A0A-98C0-50E279B93ECC}   
      35. cFilePathName[33] = C:SYSTEM VOLUME INFORMATION\_RESTORE{288FCF24-DDBA-4A0A-98C0-50E279B93ECC}RP4   
      36. cFilePathName[34] = C:WINDOWSAPPPATCH   
      37. cFilePathName[35] = C:WINDOWSWINSXS   
      38. cFilePathName[36] = C:WINDOWSWINSXSX86_MICROSOFT.WINDOWS.COMMON-CONTROLS_6595B64144CCF1DF_6.0.2600.5512_X-WW_35D4CE83   
      39. cFilePathName[37] = C:WINDOWSSYSTEM32NTDLL.DLL   
      40. cFilePathName[38] = C:WINDOWSSYSTEM32KERNEL32.DLL   
      41. cFilePathName[39] = C:WINDOWSSYSTEM32UNICODE.NLS   
      42. cFilePathName[40] = C:WINDOWSSYSTEM32LOCALE.NLS   
      43. cFilePathName[41] = C:WINDOWSSYSTEM32SORTTBLS.NLS   
      44. cFilePathName[42] = C:WINDOWSSYSTEM32COMDLG32.DLL   
      45. cFilePathName[43] = C:WINDOWSSYSTEM32ADVAPI32.DLL   
      46. cFilePathName[44] = C:WINDOWSSYSTEM32RPCRT4.DLL   
      47. cFilePathName[45] = C:WINDOWSSYSTEM32SECUR32.DLL   
      48. cFilePathName[46] = C:WINDOWSWINSXSX86_MICROSOFT.WINDOWS.COMMON-CONTROLS_6595B64144CCF1DF_6.0.2600.5512_X-WW_35D4CE83COMCTL32.DLL   
      49. cFilePathName[47] = C:WINDOWSSYSTEM32MSVCRT.DLL   
      50. cFilePathName[48] = C:WINDOWSSYSTEM32GDI32.DLL   
      51. cFilePathName[49] = C:WINDOWSSYSTEM32USER32.DLL   
      52. cFilePathName[50] = C:WINDOWSSYSTEM32SHLWAPI.DLL   
      53. cFilePathName[51] = C:WINDOWSSYSTEM32SHELL32.DLL   
      54. cFilePathName[52] = C:WINDOWSSYSTEM32WINSPOOL.DRV   
      55. cFilePathName[53] = C:WINDOWSSYSTEM32SHIMENG.DLL   
      56. cFilePathName[54] = C:WINDOWSAPPPATCHACGENRAL.DLL   
      57. cFilePathName[55] = C:WINDOWSSYSTEM32WINMM.DLL   
      58. cFilePathName[56] = C:WINDOWSSYSTEM32OLE32.DLL   
      59. cFilePathName[57] = C:WINDOWSSYSTEM32OLEAUT32.DLL   
      60. cFilePathName[58] = C:WINDOWSSYSTEM32MSACM32.DLL   
      61. cFilePathName[59] = C:WINDOWSSYSTEM32VERSION.DLL   
      62. cFilePathName[60] = C:WINDOWSSYSTEM32USERENV.DLL   
      63. cFilePathName[61] = C:WINDOWSSYSTEM32UXTHEME.DLL   
      64. cFilePathName[62] = C:WINDOWSSYSTEM32CTYPE.NLS   
      65. cFilePathName[63] = C:WINDOWSSYSTEM32IMM32.DLL   
      66. cFilePathName[64] = C:WINDOWSSYSTEM32LPK.DLL   
      67. cFilePathName[65] = C:WINDOWSSYSTEM32USP10.DLL   
      68. cFilePathName[66] = C:WINDOWSWINDOWSSHELL.MANIFEST   
      69. cFilePathName[67] = C:WINDOWSSYSTEM32MSCTF.DLL   
      70. cFilePathName[68] = C:WINDOWSSYSTEM32MSCTFIME.IME   
      71. cFilePathName[69] = C:SYSTEM VOLUME INFORMATION\_RESTORE{288FCF24-DDBA-4A0A-98C0-50E279B93ECC}RP4CHANGE.LOG   
      72. cFilePathName[70] = C:BOOT.INI   
      73. cFilePathName[71] = C:WINDOWSSYSTEM32WIN32K.SYS   
      74. cFilePathName[72] = C:WINDOWSWinSxSx86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83   
      75. cFilePathName[73] = C:Documents and Settings   
      76. cFilePathName[74] = C:Documents and SettingsAdministratorLocal Settings   
      77. cFilePathName[75] = C:Documents and SettingsAdministratorLocal SettingsHistorydesktop.ini   
      78. cFilePathName[76] = C:WINDOWSWindowsShell.Config   
      79. cFilePathName[77] = C:WINDOWSsystem32SHELL32.dll.124.Manifest   
      80. cFilePathName[78] = C:WINDOWSsystem32SHELL32.dll.124.Config   
      81. cFilePathName[79] = C:WINDOWSPrefetch   
      82. cFilePathName[80] = C:WINDOWSsystem32804   
      83. cFilePathName[81] = C:WINDOWSMUIFallback804   
      84. cFilePathName[82] = C:WINDOWSsystem32DRIVERSMUI804   
      85. cFilePathName[83] = C:WINDOWSsystem32DRIVERSACPI.sys   
      86. cFilePathName[84] = C:WINDOWSsystem32DRIVERSmssmbios.sys   
      87. cFilePathName[85] = C:WINDOWSsystem32DRIVERSintelppm.sys   
      88. cFilePathName[86] = C:WINDOWSsystem32DRIVERSipnat.sys   
      89. cFilePathName[87] = C:WINDOWSSystem32DriversHTTP.sys   
      90. cFilePathName[88] = C:WINDOWSsystem32WBEMLogswmiprov.log   
      91. cFilePathName[89] = C:WINDOWSSoftwareDistributionDataStore   
      92. cFilePathName[90] = C:WINDOWSSoftwareDistributionDataStoreDataStore.edb   
      93. cFilePathName[91] = C:WINDOWSSoftwareDistributionDataStoreDataStore.edb   
      94. cFilePathName[92] = C:WINDOWSSoftwareDistributionDataStore   
      95. cFilePathName[93] = C:WINDOWSSoftwareDistribution   
      96. cFilePathName[94] = C:WINDOWSSoftwareDistribution   
      97. cFilePathName[95] = C:WINDOWS   
      98. cFilePathName[96] = C:WINDOWSSoftwareDistributionDataStoreLogsedb.chk   
      99. cFilePathName[97] = C:WINDOWSSoftwareDistributionDataStoreLogsedb.chk   
      100. cFilePathName[98] = C:WINDOWSSoftwareDistributionDataStoreLogs   
      101. cFilePathName[99] = C:WINDOWSsystem32xpsp2res.dll
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  • 原文地址：https://www.cnblogs.com/priarieNew/p/9761189.html
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