Kernel Mode Encryption API's : Help Needed.

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- Previous
  - 1
    - Porting of TransferDataHandler function to ndis 6.0 Hi, I have this doubt regarding porting TransferDataHandler function that was previously getting registered to ndis 5.1 through NDIS_MINIPORT_CHARACTERISTICS -> TransferDataHandler. i just want to reconfirm if in NDIS 6.0, its getting registered through NDIS_MINIPORT_DRIVER_CHARACTERISTICS->MiniportOidRequest- >NDIS_OID_REQUEST->RequestType= NdisRequestTransferData . DDK says that this request type is redundant. Thanks a ton in advance! shweta Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92820
  - 2
    - update: WDK 6000 build.exe dependency issue I reported this issue to the NDIS team during our weekly call with MSFT. Now I got an ACK that the WDK team is able to reproduced in Redmond. It's being taken care of. -- Calvin Guan (expiring DDK MVP) Sr. Staff Engineer NetXtreme NTX Miniport Broadcom Corporation Connecting Everything(r) Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92796
  - 3
    - FilterAttach gives 0x80070032, different results on different computers, same code given usermode program tester.exe and kernel minifilter tester.sys and tester.inf, and cleaning out all tester.* from c:\winnt\*, and removing all pertinant "tester" fom the registery, using the same compiled code on two machines, I install the usermode program (which is a service) and the driver with: sc create testerService binpath= c:\tester\tester.exe rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\tester \tester.inf sc queryex testerService sc queryex testerDriver and both are loaded. Everything else I can think of being equal, upon starting the service, one machine calls FilterAttach() successfully and one machine receives 0x80070032 from FilterAttach() !!! What to do!? it appears that the returned hr is encoding ERROR_NOT_SUPPORTED, so what to do! I can find ZERO documentation on this behavior short of my previous and somewhat related post. the difference being that this error is being received not on a single attempted FilterAttach(). Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92795
  - 4
    - FilterAttach gives 0x80070032, different results on different computers, same code given usermode program tester.exe and kernel minifilter tester.sys and tester.inf, and cleaning out all tester.* from c:\winnt\*, and removing all pertinant "tester" fom the registery, using the same compiled code on two machines, I install the usermode program (which is a service) and the driver with: sc create testerService binpath= c:\tester\tester.exe rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\tester \tester.inf sc queryex testerService sc queryex testerDriver and both are loaded. Everything else I can think of being equal, upon starting the service, one machine calls FilterAttach() successfully and one machine receives 0x80070032 from FilterAttach() !!! What to do!? it appears that the returned hr is encoding ERROR_NOT_SUPPORTED, so what to do! I can find ZERO documentation on this behavior short of my previous and somewhat related post. the difference being that this error is being received not on a single attempted FilterAttach(). Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92794
  - 5
    - FilterAttach gives 0x80070032, different results on different computers, same code given usermode program tester.exe and kernel minifilter tester.sys and tester.inf, and cleaning out all tester.* from c:\winnt\*, and removing all pertinant "tester" fom the registery, using the same compiled code on two machines, I install the usermode program (which is a service) and the driver with: sc create testerService binpath= c:\tester\tester.exe rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\tester \tester.inf sc queryex testerService sc queryex testerDriver and both are loaded. Everything else I can think of being equal, upon starting the service, one machine calls FilterAttach() successfully and one machine receives 0x80070032 from FilterAttach() !!! What to do!? it appears that the returned hr is encoding ERROR_NOT_SUPPORTED, so what to do! I can find ZERO documentation on this behavior short of my previous and somewhat related post. the difference being that this error is being received not on a single attempted FilterAttach(). Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92793
  - 6
    - DriverEntry return question After my driver is installed, it has discovered at DriverEntry time that the registry has not been set up correctly, it returns STATUS_REGISTRY_CORRUPT and the XP Home Sp2 system crashes.... bummer. What should be returned from a driver if the driver cannot initialize and wants to be taken out of the game? -- Gak - Finecats Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92790
  - 7
    - Error Handling In Port Monitor Is it appropriate to pause or cancel print jobs under error conditions (via SetJob) from a Port Monitor or Language Monitor rather than just return a null to the Spooler for StartDocPort / WritePort / EndDocPort? Is there a specification of what the spooler expects the PM / LM to do under error conditions? Thanks for your help! Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92789
  - 8
    - Protocol Removal Is there an approved method for a driver to request the removal of a proprietary network protocol which is installed with the driver? The reason I ask is that I wish to change the interface name the protocol uses, and while the protocol gets installed with the driver, it does not appear to get uninstalled with the driver. When an updated driver is later installed, the protocol associated with it does not appear to get installed because the old protocol from the previous driver is still resident. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92781
  - 9
    - Will DMA transfer diable the CPU completely as if it has been revoved from the socket? Below is my understanding, but I am not sure of its validity. I hope to get some comments from you. Provided that a program want to start a DMA transfer. 1, CPU sends a start command to a DMAC (DMA Controller); 2, The DMAC signals the CPU through the HOLD pin and waits for the CPU's acknowledgement; 3, CPU signals the DMAC through the HLDA pin; 4, Upon receiving HLDA, the DMAC starts to DMA transfer. From now on, the CPU stops all its activities. Until the DMA process is finished, all the interrupts can not get responses. But, the CPU's internal status are kept, and all the interrupts' status are also kept. 5, Upon finishing the DMA transfer, the DMAC deactivate the HOLD pin, the CPU continues to execute its instructions. My question is the same as the title: Will DMA transfer diable the CPU completely as if it has been revoved from the socket? Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92779
  - 10
    - HID minidriver with multiple report descriptors Hi, I write a HID minidriver with standard Mouse and Keyboard report descriptors. It is based on vhidmini in Windows Server 2003 DDK. The driver work fine and I can read/write the report from the device. The Device Manager shows it is HID-compliant device in HID class, but the Mouse Class and Keyboard Class have none. How should I do so that it can be a mouse device and keyboard device? Should I modify the INF file? My driver's INF is almost same as the vhidmini's. Thanks Ron Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92769
  - 11
    - page fault when KeResetEvent runs. dear all! I use share event in communication between app and driver. the follows are my source codes : void ppppp(PVOID event) { KeWaitForSingleObject((PKEVENT)event,Executive,UserMode,0,0); //......wait for the event...... } ...... WCHAR wEventNameBuf[]=L\"\\\\BaseNamedObjects\\\\SharedEvent\"; UNICODE_STRING uEventName; PKEVENT pEvent; HANDLE hEvent,hThread; ...... case IOCTL_******: RtlInitUnicodeString(&uEventName,wEventNameBuf); pEvent = IoCreateNotificationEvent(&uEventName,&hEvent); KeResetEvent(pEvent); RtlCopyMemory(Irp->AssociatedIrp.SystemBuffer,&hEvent,4); PsCreateSystemThread(&hThread,THREAD_ALL_ACCESS,0,0,0,ppppp,pEvent); In Applicationï¼? if(!DeviceIoControl(hDevice,IOCTL_******,0,0,&Handle,4,&Bytes,0)) MessageBox(\"DeviceIo Error!\"); esle{ wsprintf(str,\"%x,%x,%x\",hDevice,Bytes,Handle); MessageBox(str); if(!SetEvent((HANDLE)Handle)) ...... } but when it runs in KeResetEvent and KeWaitForSingleObject , a reg points to 0,then page faults. somebody know what happen, and how to solve it. Thank you!! Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92768
  - 12
    - IM(passthru) installation Hi All After install the IM driver , appear the "passthru driver" in "Network Properties" menu. then anyone can remove it easly. How to install the IM driver whitout appear "passthru driver" in Netwrok properties menu? Thanks. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92765
  - 13
    - Difxapp error list I've got a Difxapp error message in the log of my MSIEXEC output. My drivers and registry settings that are in the INF are not getting set correctly. I've got a 0x424 error (somebody must know what this means), but I don't know where to find this information? -- Gak - Finecats Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92758
  - 14
    - cancel-safe queues and Cleanup Assume a driver working with the same logic as the DDK Cancel sample implements. Suppose that one routine just removed a pending irp from the queue and then the Cleanup dispatch is called. Because the irp is not in the queue anymore, Cleanup won't find it and the irp won't be cancelled. In most cases this won't be a problem, the irp will be completed soon enough. But in some devices it is possible that the irp can't be completed for some reason. Then the irp would keep pending, possibly inserted again in the cancel-safe queue. In extreme cases the irp might be never completed, and it won't ever be cancelled either. Am I missing something, or do I need to take special care if irps removed from the queue might be not possible to complete? Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92751
  - 15
    - Propagating the Pending Bit "Any time a driver handling an I/O request returns the response of the next-lower driver, the value of the pending bit in its I/O stack location (SL_PENDING_RETURNED in the Control field of the IO_STACK_LOCATION structure) must be the same as that of the next-lower driver. " ...of course they are the same! "If the driver does not set an IoCompletion routine, the I/O Manager automatically propagates the value of the bit, freeing the driver of this responsibility. However, if the driver sets an IoCompletion routine, and the next-lower driver returns STATUS_PENDING, the current driver must mark its own I/O stack location as pending. " if the driver sets an IoCompletion routine, means it has sth need to cleanup before the irp is released, it is reasonalbe bcz device stack is a nesting arch. pls correct me. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92742
  - 16
    - ddkbuild.bat Vista DDK (6000) and making brower files (currently NOT) I searched for ddkbuild and DDK so I did my due diligence. We are upgrading from OSR DDKBUILD.BAT V5.1 to OSR DDKBUILD.BAT V6.10 and more importantly from DDK2600 to DDK6000. Yes I know, I know it was last released in 2002! The project is an XP NDIS 5.1 miniport driver. Now I am trying to coax a (*.bsc) file out of this and having no joy. The 6000 DDK says that I can not define: BROWSER_INFO=1 BROWSERFILE=drivername.bsc anymore. I saw some discussion from Mark Roddy about <ddkroot>\bin\verify.src and defining USER_ENV_BROWSER_INFO=1 to turn the error off but that still does not get me my drivername.bsc (no joy) It was in http://www.techreplies.com/drivers-43/visual-studio-net-driver-wizard-339156/ Does anyone know the magic invocations required to get a browse file. We really like using ddkbuild.bat and VS6 to manage the development environment. Thanks -Ron- Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92740
  - 17
    - Calling CreateFile / DeviceIOControl from a limited user account I need to be able to open a handle to a driver and communicate with it via IOCTLs. This needs to be done from a limited user account on Windows XP Pro SP2. I have a solution working when running from an administrator account but I can't get it to work from the limited user account and I cannot find any security settings the allow access. Is there a security setting of some sort that I can set to allow this functionality? Thank you. -- Matthew Townsend General Dynamics Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92737
  - 18
    - PsCreateSystemThread on Win2k The DDK states that PsCreateSystemThread under Win2K must be called from the system process context only. However checking older DDK versions and older samples seem to condtradict that statement. This suggest that it can, but it shouldn't perhaps because it exposes a bug or a security hole in Win2k. So the question is if it is still possible to call PsCreateSystemThread from an abritrary process context, perhaps taking special precautions. Yeah, I know that I can schedule a work item to create the system thread. But this creates an overly sinchronization complication between the dispatch routines, the work item and the system thread. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92726
  - 19
    - Tracking Info in 3 Documents At Once Hello All I have a question regarding trying to have 3 seperate documents, where when you make a change in one, the other two automatically get updated. I know there is a function in Excel that perfroms this task; however, it only allows one person to work on the document at one time. I need to be able to have this function that allows multiple team members to update one document where the other two are automatically updated as well. Do you know of any applications or databases where I can set this up? I would appreciate any feedback. -- Thanks a lot, Ilona -- Thanks a lot, Ilona Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92724
  - 20
    - Signing a Windows XP driver Hi, I'd like to sign our driver so it can be easily installed via the DIF for MSI. I tried several hours to obtain any USEFUL information on the winqual sites (which seem to be all updated for Vista, but I don't need Vista now). Usually posts like mine get answered by these two links: "Driver Signing Requirements for Windows" http://www.microsoft.com/whdc/winlogo/drvsign/drvsign.mspx "Summary of Windows Kernel-mode Driver Signing Requirements" http://www.microsoft.com/whdc/winlogo/drvsign/drvsign_perOS.mspx But actually these pages only circle around and everytime you want to follow a link "to see detailed information.." you end up on a page telling the same again (the first) or they are providing end user information (the latter) I once found something where the prices for a normal signing process were listed, but the procedure itself is still a mystery. So, I am lost in the depths of the weird half baked MSDN documentation (which only refers to vista). Can anyone provide a little step by step guide how to get my driver signed for Windows XP WITHOUT a full WHQL submission, distribution through Microsoft and logo stuff etc.pp. I just for now want that it installs on Windows XP without the warnings. thanks for any help and pointers doc Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92715
  - 21
    - Howto: find tdi behavior flag of a kernel sockets client Hello, Per WDK, a kernel sockets client can set a flag-- WSK_TDI_BEHAVIOR_BYPASS_TDI--that will cause WSK to bypass TDI filters. >From WDK: "If a native WSK transport exists for the address family, socket type, and protocol that are specified when the WSK application creates a socket, then, if this flag is set, the WSK subsystem ignores any TDI filter drivers and always uses the native WSK transport." How can I find out if this flag is set by a particular driver, or a particular kernel sockets client? Thanks. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92709
  - 22
    - Virtual comport with usbser.sys Hello NG, I wrote an Inf-File which installs a virtual comport using usbser.sys for my USB device. When I connect the device to the PC the Hardware wizard comes up an installes usbser.sys. After that I can communicate with the device via a virtual Com-Port. So far so good. Now I tried this on several machines and now I am facing a problem on one of my testing machines. The driver on this machine seems to be installed properly but the Hardware wizard comes again and again. When I open the device manager the device appears under ports without an assigned Com-Port. Looking into the registry I found the entry \Device\USBSER000 which value is set to "COM11" under HKLM\Hardware\DEVICEMAP\SERIALCOMM but my device is not accessible via that COM Port (Com 11). Any ideas? Benji Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92702
  - 23
    - "Fake" Keyboard or Mouse driver Does anyone know if is possible to get (and where is it of course...) a "fake" keyborad (or mouse) driver that can simulate key press or mouse click generated by code (like C++, VB.NET ecc) ? I would like to "simulate" some condition on a virtual machine, but I can't install any other SW in it because the OS installed is Linux. Thx in advance Sorry for my poor english .... -- I.d.N. .oO Please cut "-SOME TREES-" for reply Oo. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92699
  - 24
    - USB Compsite Device Driver loading and PnP events I have a question on the USB composite device. In DDK, it is said After the USB hub driver generates a PnP event for a Composite device with a set of compatible IDs that include USB\COMPOSITE, Windows searches the INF files in the inf subdirectory of the Windows installation (and, possibly, a vendor-provided floppy disk) for a match. If the device ID is matched, Windows loads the single driver that is indicated by the installation script and the generic parent driver does not come into play. If no device ID match is found, Windows uses a compatible ID, for which it loads the USB generic parent driver. I just want to know If the device ID is matched, Windows loads the single driver that is indicated by the installation scripts, then who will be responsible to generates PnP events for the multiple interfaces in the composite device? Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92694
  - 25
    - HClint can't find any hid mouse in Windows XP Sp2 X64 ENVIRONMENT Hi, all Why the sample code "HClient (\WINDDK\3790.1830\src\wdm\hid\hclient)" can't find any hid-mouse in Windows XP/2003 SP2 x64 eniornmenrt? I need to open hid mouse interface in windows xp (x64). how can i to do this job? Sincerely , Eliot Chang Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92687
- Next
  - 1
    - storport half-duplex mode Is HwInterruptRoutine called with the StartIo spinlock held in half-duplex mode? Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92676
  - 2
    - Driver differences Can someone point me to a page that lists or describes the differences between drivers for Windows XP and drivers for Windows Vista? I'm not a driver developer, but I've been tasked with getting a high level overview of the differences. I need to find out what changes will be required to port our existing NDIS driver to Windows Vista. Any help will be appreciated. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92672
  - 3
    - How to call LockWorkStation on Vista 64-bit? Not a driver question but - We we call LockWorkStation on Vista 32-bit is works and locks the workstation. On Vista 64-bit it doesn't work. What is the trick to make this call or is it unsupported on 64-bit? Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92671
  - 4
    - help files in printer driver user interface In all previous versions of our printer drivers (for Windows 98, NT, 2000, XP) we used the WinHelp API to display context sensitive help for the printer driver user interface DLL. Windows Vista no longer supports the WinHelp functions, so I converted the driver UI to use HtmlHelp and rebuilt the old HLP files into newer CHM files. This does does not seem to work though. I can debug the driver UI and see that I am passing correct parameters to HtmlHelp() function, but nothing gets displayed. Is there some trick to using HtmlHelp from driver UI DLL? Is there a better way to add context sensitive help to driver UI? Thanks in advance, Neal Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92670
  - 5
    - i will find drivers for you i will find drivers for you at mdrepairs Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92659
  - 6
    - How to use SetErrorMode() to ignore pop-up windows? Hi all, The code is: if(!SetupDiCallClassInstaller(DIF_INSTALLDEVICEFILES, hDevInfo, &deviceInfoData)) { // happen error here! errCall = "SetupDiCallClassInstaller"; goto failed; } When application run into SetupDiCallClassInstaller api, it will popup a error message about device installer error. There I want to disable this window pop-uped. Then application can execute normally. So I try to use SetErrorMode() like following: SetErrorMode(SEM_FAILCRITICALERRORS); if(!SetupDiCallClassInstaller(DIF_INSTALLDEVICEFILES, hDevInfo, &deviceInfoData)) { // happen error here! errCall = "SetupDiCallClassInstaller"; goto failed; } SetErrorMode(0); But it seems can't work... Do you have any suggestions about it? Thanks in advance! Eugene Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92650
  - 7
    - Volume control implementation In this post I am referring to Windows 2K/XP, things seem somewhat different in Vista and I haven't had a chance to investigate it] There is volume control in Windows Media Player (or Winamp, or any other player application) and there is one in Windows control panel. Can anyone explain what each of them actually does? My current understanding is that volume control in the player makes player application scale audio stream programmatically, after which audio stream is sent to the hardware. Volume control in the Windows Control panel doesn't change audio stream programmatically but instead works as a "knob" for hardware amplifier on the sound card. Am I correct? Is there any information on MS website that explains all this? So far I haven't found it. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92643
  - 8
    - Getting user input and rebooting the machine using a "boot load driver". Hi, The product that I am currently working on requires to present the user with a bunch of options, get the user's input, do "something" based on user's preference and finally reboot the machine to continue normally. This needs to be done in a "boot load driver" (before the login screen appears) that loads very early. Is it doable? If yes, I would like to know 1. How to display the options to the user and get the inputs (while holding the system from booting any further) 2. How to initiate a re-boot. Thank you all for your time and help. Tom Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92639
  - 9
    - Question on configuration of network adapter Hope it is the right place for the question --------- I need do some configuration for network bridge programmatically. The bridge is created manually. And I need set static IP address, subnet mask, enable/disable DHCP also disable/enable the bridge interface. I cannot find any documented win32 API to do this. Is ther some way to do it through device driver ot IOCTL call? Thank you for your help Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92637
  - 10
    - Bluetooth DDI support on XP SP2 I am currently developing a filter driver for a Bluetooth HID keyboard, and this needs to be supported on both Windows XP SP2 and Windows Vista. I was able to use the Bluetooth DDI on Windows Vista (bthddi.h from WDK) and everything works fine, but I see that on Windows XP SP2 the IOCTL I receive are different and not define in any WDK header. Were can I get access to the Bluetooth DDI for Windows XP SP2, in order to implement support for this OS? Thanks for any help, Olivier Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92631
  - 11
    - SCardListReaders() doesnt list my device! I'm writing a PC/SC compliant smart card reader driver, the driver works flawlessly on Windows 2000. So I installed it on Windows XP SP2 to test, the driver loads and correctly creates the reader device (using smclib) but it doesn't get listed by SCardListReaders() i've tryed many fixes but i couldn't manage to get this to work. No success with SCardIntroduceReader too. Do you have any idea of what can be causing this condition? Is there any changes in the smartcard driver infrastructure between these operational systems? Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92628
  - 12
    - DTM: System Config Master Job not scheduled After adding Wdk\ConfigureSystem policy to my poll and adding the System Config Master Job it will not be scheduled to any client computer, even if it's status is Ready. I get the following Errors: The Scheduler service has not made any attempts to schedule this job. Possible Reasons: SQL Server Agent on the controller may be stopped The Scheduler SQL Job is not successfully running Examine details below for more information. I am sure those 2 services are running. What can be wrong? Do I have to configure/create some user accounts on client/controller/studio computer? Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92626
  - 13
    - Map physical address in windows 98 I'm translating a win16 driver to a windows 98 driver, and I need to access physical addresses like c800:0000 (0xc8000) with it. I googled a lot for it, but I can't realize what's the better way of doing it. As far as I'm concerned, one way to do it would be using MmMapIoSpace, but I should have the windows 98 ddk, which I couldn't find for download. Any idea would be appreciated. Thanks, Henrique Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92613
  - 14
    - Installing drivers without admin rights Hi I would like to install drivers to a machine when the user is not logged on as an administrator. I am using â??rundll32 setupapi, InstallHinfSectionâ?? but the operation is failing. If the drivers were WHQL signed would this make a difference? I have been looking into â??server-side installationsâ?? but since the drivers are not for hardware (other than an anti-virus IFS driver) Iâ??m not sure if that would work either. Can anyone help? Thanks Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92604
  - 15
    - cannot open callback object Please help, I am trying to create a callback object that can be used in 2 drivers. I can create the callback fine in one driver but cannot open it in another. To simplify things I tried creating the object and opening in the same driver ... in the same function, but still no luck ... opening created callback object always fails with STATUS_OBJECT_NAME_NOT_FOUND. Here is the code ... static PCALLBACK_OBJECT unloadCallbackObject; static PCALLBACK_OBJECT testCBO; void initCallbackObject(void) { NDIS_STATUS status; UNICODE_STRING unloadCallbackObjectName; OBJECT_ATTRIBUTES unloadCallbackObjectAttributes = {0}; // register a callback handler RtlInitUnicodeString(&unloadCallbackObjectName, L"\\Callback\\UnloadCBO" ); InitializeObjectAttributes( &unloadCallbackObjectAttributes, &unloadCallbackObjectName, 0, 0, 0); status = ExCreateCallback( &unloadCallbackObject, &unloadCallbackObjectAttributes, TRUE, // create FALSE); if (status == STATUS_SUCCESS) { // created ok so see if we can open it ... status = ExCreateCallback( &testCBO, &unloadCallbackObjectAttributes, FALSE, // open FALSE); ... this test open always fails! ... however, if I change create flag to true this call will succeed, even though it should in theory fail because the object should already exist! Sounds like the first call to create a new object failed even though the return value was good. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92601
  - 16
    - A question on ATTRIBUTE_INFO_3 structure Hi All, I am not clear with "dwDrvNumberOfCopies" member of ATTRIBUTE_INFO_3 structure. Can anyone tell me whats the meaning of this? Is this maximum number of copies(like 9999) that the driver supports? Where can i get more information on this member? Thanks Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92599
  - 17
    - BulkUSB / ReadFile Currently, I am using the BulkUSB driver sample in the Windows DDK 2600.1106. For the user-mode application, I have been following the sample in the rwbulk.c (bulkusb\exe) - using API functions like ReadFile(), WriteFile() and DeviceIoControl() to communicate with the USB reader via the driver. In my application, I have allocated a Buffer of 1024 bytes (the maximum number of bytes supported by the firmware) and the nNumberOfBytesToRead is assigned to 1024 bytes. ReadFile(hFile, &Buffer, 1024, &dwBytesRead, NULL); I have always been able to read the data from the reader. However, when my colleague tried reading 1 byte of data at a time in a while loop, there would be an error returned from the driver for the first ReadFile(). for ( ; ; ) { if (ReadFile(hFile, &chRead, 1, &dwRead, NULL)) // A byte has been read; process it. else // An error occurred in the ReadFile call. break; } } In the BulkUSB_DispatchReadWrite routine, the driver will send a request to read 1 Byte of data from the reader. However, in the driver read completion routine (BulkUSB_ReadWriteCompletion), the Irp- >IoStatus.Status was 0xC0000001 (STATUS_UNSUCCESSFUL) and the Irp- >IoStatus.Information = 0. >From the CATC trace, the reader returned 5 bytes of reply for the Bulk- In request (even when the driver requested to read 1 Byte). 1. Can the driver read only 1 byte of data from the reader even if the reader has more data in its reply block ? 2. Is there any rule to assign the nNumberOfBytesToRead for ReadFile() during USB communication ? Thank you. Rgds, Catrice Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92598
  - 18
    - driver performance monitoring We have WDM based USB driver and it runs fine on XP but when loaded on VISTA, when using one of the diagnostic application, my PC CPU usage hits 100%, but this application runs fine on XP. Is there a good profiling tool to monitor which exact driver rountine is running when CPU hits 100% usage. I can not trying traceview tracefmt tools because this requires code changes in the driver. trv Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92592
  - 19
    - Can mirror driver support multiple monitors I wrote a mirror driver based on Windows DDK mirror driver sample before. It runs pretty okay. But it tested only on the windows XP with singleton monitor. I installed my mirror driver on the windows XP with dual monitors or triple monitors last week. The system crashed. I got a blue screen when I tried to install the mirror driver. Sometimes, I could luckily install the mirror driver. It showed that the mirror driver was working properly. But the system crashed again when I tried to enable the mirror driver. Does Microsoft mirror driver only support the primary display? Is it possible for the mirror driver support multiple displays. If yes, How? Any comments are welcome! Thanks in advance. Lee Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92588
  - 20
    - non-admin SPTI calls on Vista: possible or not ? I am trying to clarify what is the situation with SPTI calls and Vista? 1) I've read before that Vista [presumably] allows by default non-admin SPTI calls to optical drives ... is it really so? 2) If yes, how to get device handle from the program running in standard mode? I tried CreateFile with a "device instance" name received via SetupDi* enumeration but CreateFile failed with "access denied" diagnostics. Works fine in elevated [Run as Admin] mode, though ... Any help would be greatly appreciated! Many thanks! igor. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92581
  - 21
    - Controller enumeration question - Backward XP UINumbers. I have two hard disk controllers in a PC, and hot plug a disk drive in to controller 1 first, then the second drive into controller 2. As expected, the first drive appears in the Disk Manager as Disk 1, and the second disk as Disk 2. Now, I reboot the PC. The disks listed in the Disk Manager are now swapped. This is expected behavior according to a KB article; "Windows Server 2003 and Windows XP perform an in-place reorder operation to optimize PnP. As a result of the reorder operation, Windows Server 2003 and Windows XP may enumerate the hard disk on the secondary IDE channel before the hard disk on the primary IDE channel. The hard disk that Setup detects last is listed first." Unfortunatly, as a writer of a hard disk controller utility, it's hard to tell my users what has happened. I need to be able to present controllers in a consistent manner so they know what drive is attached in an intuitive manner. The question is, how do I get a controller numbering scheme that will "match" the disk numbers in the Disk Manager? I can't simply reverse the order (per the quote above) b/c Windows's controller enumeration scheme may change at any release of Windows (i.e., Win2K orded controller the other way). thnx. Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92577
  - 22
    - Vista and NDIS 5.0, Do they play nicely together? We have an NDIS 5.0 compliant WLAN driver sitting on top of a proprietary bus driver. Vista does load the bus driver and when the bus driver enumerates the WLAN driver, Vista does install and load the WLAN driver. The only problem is that the installed WLAN driver is not recognized as a network driver. The install package works fine in Win2k and XP. We are actually "" that close to Logo on XP so the inf files and Installshield at this point should not be in question. Does Vista install and run NDIS 5.0 compliant WLAN drivers? Thanks -Ron- Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92575
  - 23
    - About 64 bit in bulk sample. Hi, I looked at driver sample in the DDK and in the bulkusb they seems to all point at the 32 Bit version in the INF file. Despite the fact that there is environment for 64 Bit. My question is 64 Bit operating system backward compatible with the binary of a 32 Bit WDM driver. If not, is there a sample that generates both? Thanks Denis Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92573
  - 24
    - authrootseq.txt ? Does anybody now why a DifXApi install requires network access to : http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt ? We have a difxapi signed driver based installer which for some reason is unable to access the required URL. Disabling the network (and rerunning the install) allows the install to continue. Obviously if the URL is inaccessible and given the installation can run when not connected to the network, why fail completely when the URL cannot be found? Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92564
  - 25
    - TUSB3200(Streaming Controller) based Audio Device Driver Hello Experts, I am trying to write a driver for TUSB3200(Streaming Controller) based Audio Device on XP. Can anybody suggest me Which sample is suitable for me from DDK kit. The TUSB3200 Controller includes both Bulk and Isochronous tranfers along with DMA channels. I found AVStream sample in DDK but I am not sure will it be a good sample for my needs. Can anybody suggest/Advice me in the right direction. Your valuable suggestions are always appreciable. Thanks in advance. Regards, ~Vijji Tag: Kernel Mode Encryption API's : Help Needed. Tag: 92557

I want to do kernel mode AES encryption beacuse i am developing a
encryption filter driver.

Is there any k-mode library available for the same?

Plz Help.

Regards,
Aman.

Top

Re: Kernel Mode Encryption API's : Help Needed. by Don

Don
Mon Mar 12 08:25:52 CDT 2007

Though you do not state it, I am assuming you are talking about a file
system filter? If so the AES encryption is the easy part, since handling
all the file system cases is so much harder. If it is a file system
filter, go to http://www.osronline.com/ and look at the NTFSD archives, you
will probably find that if writing your own kernel AES is too hard, the
rest of the requirements are going to be down right impossible.

--
Don Burn (MVP, Windows DDK)
Windows 2k/XP/2k3 Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr
Remove StopSpam to reply

"developer28" <aman.k.sethi@gmail.com> wrote in message
news:1173690577.243304.142670@s48g2000cws.googlegroups.com...
>I want to do kernel mode AES encryption beacuse i am developing a
> encryption filter driver.
>
> Is there any k-mode library available for the same?
>
> Plz Help.
>
> Regards,
> Aman.
>

Top

Re: Kernel Mode Encryption API's : Help Needed. by Maxim

Maxim
Mon Mar 26 03:25:20 CDT 2007

Write it yourself using the reference implementation.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@storagecraft.com
http://www.storagecraft.com

"developer28" <aman.k.sethi@gmail.com> wrote in message
news:1173690577.243304.142670@s48g2000cws.googlegroups.com...
> I want to do kernel mode AES encryption beacuse i am developing a
> encryption filter driver.
>
> Is there any k-mode library available for the same?
>
> Plz Help.
>
> Regards,
> Aman.
>

Top