Enabling a NDIS MUX in Network Connections

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  - 1
    - DPInst and virtual drivers (e.g. MSVAD) I am trying to understand from reading the DPInst WDK documentation to which category a virtual device driver would fall: a "device that is configured in the system" or a "nonpresent device"? The documentation reads: "DPInst checks whether the hardware identifiers or compatible identifiers in the INF file match a device that is configured in the system or match a nonpresent device." Since in a virtual device driver there is no hardware involved (i.e. no "device that is configured in the system"?), it is tempting to think that DPInst would be dealing with a "nonpresent device", right? But when I install a virtual device driver (e.g. MSVAD) manually, using Control Panel's Add Hardware, I am first prompted by a question "Have you already connected this hardware to your computuer?" - to which I must answer "Yes, I have already connected the hardware" or else the driver will not be installed... So, how is a virtual device driver treated from the standpoint of DPInst? Thanks, Don Tag: Enabling a NDIS MUX in Network Connections Tag: 96889
  - 2
    - Strategies for High-bandwidth Isochronous USB with AVstream minidriver Hi All, I'm trying to implement a video capture pin that uses the Process dispatch to queue frame buffers. It then uses a separate thread to take a frame from the queue and initiate a frame read into it. The read completion routine does a KsPinAttemptProcessing call to keep the leading edge buffers coming. The frame buffer queue is 5 deep. The pin runs for about 20 frames before the calls to Process start to fall behind and there are errors on some of the iso packets. When it reaches this "stable" state, Process is called at approx 17ms intervals. The iso read is for 14x24K for a full frame so it should occur at 14ms intervals. Should this approach work? What can be changed to make the Process calls come in at a 14ms rate? Thanks for any suggestions, -Stan Tag: Enabling a NDIS MUX in Network Connections Tag: 96887
  - 3
    - IOCTL_DISK_GET_PARTITION_INFO_EX on Dynamic MBR data Hi, At present time our customers are widely using the GUID Partition Table (GPT). GPT provides a more flexible mechanism for partitioning disks than the older Master Boot Record (MBR) partitioning scheme that has been common to PCs. The problem is that the our client fails calling the DeviceIoControl() function with the ioctl IOCTL_DISK_GET_PARTITION_INFO for a GPT partition. It is obvious that the extended ioctl IOCTL_DISK_GET_PARTITION_INFO_EX should be used here. According to MSDN (http://msdn2.microsoft.com/en-us/library/aa365180.aspx) the IOCTL_DISK_GET_PARTITION_INFO_EX control code is supported on basic disks. It is only supported on dynamic disksthat are boot or system disks, or have retained entries in the partition table. The DiskPart.exe command RETAIN can be used to do this for other dynamic simple partitions.The disk support can be summarized as follows. Disk type IOCTL_DISK_GET_PARTITION_INFO IOCTL_DISK_GET_PARTITION_INFO_EX Basic MBR Yes Yes Basic GPT No Yes Dynamic MBR boot/system Yes Yes Dynamic MBR data Yes No Dynamic GPT boot/system No Yes Dynamic GPT data No No So, I am concerned about "dynamic MBR data" which is supported by IOCTL_DISK_GET_PARTITION_INFO but is NOT supported by its _EX version. Any ideas? Thanks, Andrei Nehay Tivoli Storage Manager Client Development nehaya@us.ibm.com Tag: Enabling a NDIS MUX in Network Connections Tag: 96882
  - 4
    - [DTM] Is the device necessary? Hello, I want to run some driver tests with the DTM. Is the device necessary? Thank you! Tag: Enabling a NDIS MUX in Network Connections Tag: 96880
  - 5
    - Smulating DHCP and ARP responses Hi, I am (still) writing a virtual network adapter and need to simulate DHCP and ARP responses. The question is not about the content of response. The question is how to send the response packet to whoever sent the request? What methods should be used in ndis5.1 miniport and ndis6 miniports? Thanks, Anatoly. Tag: Enabling a NDIS MUX in Network Connections Tag: 96879
  - 6
    - Driver to Extract Text and Positional Info, Create PDF, and Forward to another Printer I have a project running that requires me to extract the text data and its position information from a print job as well as create a standard file (probably a pdf) and then forward the job to another printer ( for printing on paper ). I have never worked with Printers before and was wondering if you could recommend a good resource or three for me. I am hoping to use a Universal Printer Driver from Microsoft and attach to the appropriate events so that I can snag a copy of the print image (in what format? i don't know), forward the job immediately to another printer, and then do my analysis on the image. This must work on Win2K, XP, 2003, Terminal Server, and Citrix for Terminal Services. Thank you for your help. Rob. Perfect World Corp. robl@perfectworld.net Tag: Enabling a NDIS MUX in Network Connections Tag: 96861
  - 7
    - Nasty teen in the toilet That chick mastrubates wildly, then pisses [url]http://pissing-skills-avi.info/WindowsMedia?218571[/url] -- Adanertaplo00 ------------------------------------------------------------------------ Posted via http://www.codecomments.com ------------------------------------------------------------------------ Tag: Enabling a NDIS MUX in Network Connections Tag: 96860
  - 8
    - STATUS_INVALID_DEVICE_REQUEST with IoGetDeviceObjectPointer Hello, - I have two drivers, with one I create a device with IoCreateDevice and I can see my device created in devicetree and in WinObj applications. - With the other driver I used IoGetDeviceObjectPointer to handle the device object pointer from the first driver. When I call IoGetDeviceObjectPointer I have an error. It returning STATUS_INVALID_DEVICE_REQUEST all the time. I check and re-check with devicetree, my device exist. But with WinObj I can see my device but when I double-click on it I have an error, I can't access to the properties. Maybe it is a right access problem. Do you have an idea to resolve this problem ? Regards, Tag: Enabling a NDIS MUX in Network Connections Tag: 96859
  - 9
    - Driver development team It seems, to me, driver development is different from application development at a large scale. I wonder how hard it is to develop a team in a relatively small development house - let alone an efficient team. It is not possible to get a lot of driver development job - so few programmers are interested to be specialized at this area. And as you do not get driver developer easily you can not manage project easily - and loss interest for future driver projects. Strange situation. -- Sincerely, Maruf Maniruzzaman, Software Engineer, Dhaka, Bangladesh. http://www.kuashaonline.com Tag: Enabling a NDIS MUX in Network Connections Tag: 96847
  - 10
    - Where i can download WDK XP? I only have seen the link for "WDK Longhorn Server Beta 3" in connect.microsoft, but i want download a version for windows xp professional sp1, can i use the same version for longhorn and xp? Tag: Enabling a NDIS MUX in Network Connections Tag: 96829
  - 11
    - IRP_MJ_CREATE hello I am making a file system filter driver and I am trying to send an irp request to the lower driver I am attached to, the file exists, I just want the file sysyem driver to open it and give me the file_object structure, VIA irpstack. I do it like so: try { RequestIrp=IoAllocateIrp(TargetDevice->StackSize,FALSE); if (!RequestIrp) return STATUS_INSUFFICIENT_RESOURCES; RequestIrp->Tail.Overlay.Thread=PsGetCurrentThread(); RequestIrp->RequestorMode=KernelMode; iosb.Information=0; iosb.Status=STATUS_SUCCESS; RequestIrp->UserIosb=&iosb; RequestIrp->Flags=IRP_SYNCHRONOUS_API|IRP_CREATE_OPERATION; irpStack=IoGetNextIrpStackLocation(RequestIrp); irpStack->MajorFunction=IRP_MJ_CREATE; irpStack->Parameters.Create.EaLength=0; irpStack->Parameters.Create.FileAttributes=FileAttributes; irpStack->Parameters.Create.Options = CreateOptions; irpStack->Parameters.Create.SecurityContext->AccessState = NULL; irpStack->Parameters.Create.SecurityContext->DesiredAccess =DesiredAccess; irpStack->Parameters.Create.ShareAccess = ShareAccess; } finally { DbgPrint("Could not make create file request"); } my question is where do I set the file name that I want to open or create, and I also want to know if the irpStack->FileObject will point to the new file object created or I will need to fill this field with a pointer to a file object structure. The main question is where should I specify the name of the file about to be created/opened. thanks Tag: Enabling a NDIS MUX in Network Connections Tag: 96825
  - 12
    - Can't install kbfiltr.sys Hi, I'm not sure this happened ever before. At least I didn't found anything: I can't install kbfiltr.sys with the standard kbfiltr.inf! Yes! The DDK kbfiltr! I modified the kbfiltr driver a little, but did nothing to the .inf file, If I install it over the device manager, for the ps/2 keyboard, it tells me it can't copy any files which are already there. That seem to be the files from keyboard.inf which are included in kbfiltr.inf: kbdclass.sys and i8042.sys. Of course they are already there. And if deleted they get immediately restored by the Windows File Protection. And I think I _need_ keyboard.inf. Since it's a keyboard filter driver. And the include instruction was _always_ in the .inf file. How comes this strange error? I mean: on another PC it worked! Also with Windows File Protection on. The installation worked and I got all the right registry entries. And since it's a pnp-device-filter there are much more entries than just the things under "\Services". You don't want to make them all by hand. Any ideas why this is happening? What's wrong with my Windows XP SP2 (all patches included)? Thanks Jan Diederich Tag: Enabling a NDIS MUX in Network Connections Tag: 96822
  - 13
    - help with drivers Hi there everyone..can someone tell me if i can update or change a driver as my comp blue screens ..and an error report says it is my driver?????? -- keep those fingers active Tag: Enabling a NDIS MUX in Network Connections Tag: 96820
  - 14
    - Nasty teen in the toilet That chick mastrubates wildly, then pisses [url]http://pissing-skills-avi.info/WindowsMedia?218571[/url] -- Laane ------------------------------------------------------------------------ Posted via http://www.codecomments.com ------------------------------------------------------------------------ Tag: Enabling a NDIS MUX in Network Connections Tag: 96813
  - 15
    - NDIS IM, ethernet loopback i'm developing a NDIS IM that has to wrap ethernet packets into ethernet packets. due to its very specific application, the wrapper's destination has to be set to broadcast. yes, the wrapper also preserves the original SRC and DST MAC addresses, exactly as i got them from the upper layer. obviously, ALL of the packets i send, i get at the receive codepath. consequently, i have to mime the NDIS' loopback handling, and drop (by not indicating upper) the exact samt packets that NDIS wouldn't loop back if my driver wouldn't have been installed. Q: except for two trivial cases* that i figured out myself, are there any other cases when the packet should be looped back? problem is - i've already implemented the handling of these two cases, and some protocols (particularly, ARP) seems to not behave well. thanks in advance. - - - * the trivial cases are these: 1. if the original DST was broadcast, 2. if the original DST is the same as the original SRC. Tag: Enabling a NDIS MUX in Network Connections Tag: 96812
  - 16
    - NDIS IM Layering According to the WDK documentation, you cannot have more than one NDIS IM driver of a particular FilterClass (scheduler, loadbalance, failover) in a stack. This is found under the topic "Filter Intermediate Driver Installation (NDIS 5.1)". In practice, I was able to install the WDK sample PassThru and our own driver which is based on PassThru with no observable problems. Both drivers have their FilterClass specified as failover in their respective INF files. Am I misunderstanding something here? Is the documentation making a recommendation instead of stating policy? Tag: Enabling a NDIS MUX in Network Connections Tag: 96811
  - 17
    - Enabling 1-N Mux (NDIS 5.1) in Network Connections (XP+SP2) window The Mux that we're working on shows up in the Network Connections window w/ a Disabled status. When the user attempts to Enable it using the context popup or any other method, a "Connection Failed" error is reported. The Mux is not, in fact, disabled. It is passing packets back and forth between the protocol layer and the NICs. What does an NDIS IM have to do to implement the Enable/Disable commands? TIA for any help that you can provide. Wes Tag: Enabling a NDIS MUX in Network Connections Tag: 96801
  - 18
    - sdiomars based kmdf driver Hi all I am working with a prototype sdio multi function card and am working with a driver based off of the sdiomars kmdf sample. I am able to load the driver ... the DeviceAdd function is called for this device (function 1 - function interface code is 0) on the sdio card. DeviceAdd returns status_success ... however the PrepareHardware function in never called and the driver is unloaded. Questions : 1. What could prevent PrepareHardware from being called ? Is it because the function interface code is 0 ? 2. Is there any debug support in the sdbus host/link libaries to help figure this out. ? Since the device is stil under development it could very well be that something in the CIA is not set up correctly. Any help/pointers would be appreciated. Thanks - rks Tag: Enabling a NDIS MUX in Network Connections Tag: 96800
  - 19
    - test test Tag: Enabling a NDIS MUX in Network Connections Tag: 96799
  - 20
    - How does user mode STI minidriver enable KS device event? I would write a user mode STI minidriver to monitor PC camera button pressed event. How does user mode STI minidriver enable KS device event? I know IOCTL_KS_ENABLE_EVENT can do that, but how?? Should I use DeviceIoControl or KsSynchronousDeviceControl to send IOCTL_KS_ENABLE_EVENT? How do I get the associated KS object or handle of my device in user mode STI minidriver? Best Regards Jack Huang Tag: Enabling a NDIS MUX in Network Connections Tag: 96796
  - 21
    - Is there a call similar to NdisAllocateFragmentNetBufferList() for fragmenting NET_BUFFER structure? Is there a call similar to NdisAllocateFragmentNetBufferList() for fragmenting NET_BUFFER structure? The purpose is to create new netbuffers that carry portions of data in the original NET_BUFFER, when the NET_BUFFER data length is more than the maximumphysicalmapping I informed OS while registering SG DMA channel. Thanks, -Praveen Tag: Enabling a NDIS MUX in Network Connections Tag: 96793
  - 22
    - About BDA node types... Hi, I wanna combine tuner, demod and capture nodes in a filter. The node types in the KSNODE_DESCRIPTOR declaration should be KSNODE_BDA_RF_TUNER, KSNODE_BDA_COFDM_DEMODULATOR(for DVB-T), and what's the capture node type should be? Thanks! Tag: Enabling a NDIS MUX in Network Connections Tag: 96792
  - 23
    - Sending simple message to usb device. Hi, I am trying to do something that sounds simple but doesn't have an obvious answer with my current knowlege. I am trying to send simple messages to a usb board. What I want to do is send say the #6, just that character, to a usb board that I am working on. The device has a specific identifier (a model number) so it shouldn't be hard to find - if I knew where to start. Thanks in advance, Kristian So, if I wanted to write a program to send simple characters to this board - where do I start? Tag: Enabling a NDIS MUX in Network Connections Tag: 96781
  - 24
    - XP and Vista driver development I am need of a driver developer for hire. Should be a short contract... 1 Project. Please give me rates and any interest you my have. Thanks, Anthony Tag: Enabling a NDIS MUX in Network Connections Tag: 96769
  - 25
    - FOX NEWS SUED FOR FAKE NEWS The ham sandwich parody that was reported on FOX and Friends April 24th as real news (multiple times, as noted by Think Progress) has lead to a lawsuit by a school administrator affected by the subsequent harrassment. Boston.com reports: "Lewiston School Superintendent Leon Levesque is seeking $75,000 in federal court in Portland to deter what his attorney Bernard J. Kubetz characterized as irresponsible reporting by Fox News Channel. ...The lawsuit contends that Fox reported the parody as fact on its "Fox and Friends" show on April 23. The show's anchors repeated a comment attributed to Levesque, that "These children have got to learn that ham is not a toy," and that there was an effort afoot to create an "anti-ham response plan." ..."It appears to me that Fox News acted in a grossly irresponsible way and took some information that was really not very plausible, did not do any substantial fact-checking, and put it out as hard news," Kubetz said. Levesque said he was overwhelmed for days with phone calls and hate mail, including threatening calls to his home. Fox did a brief on-air retraction, but Levesque called it unsatisfactory. A Fox News spokesman in New York said the company does not comment on pending lawsuits." One can only hope that the Boulder Valley School District takes note and follows suit, for Bill O'Reilly's (a.k.a. Donald Duck) reprehensible and deliberate misrepresentation of a school assembly at Boulder High School. Bill O'Reilly (and Caplis and Silverman, who also smeared the school on their radio show) have been asked to respond to the Independence Institute's issue paper documenting the falsehoods; as far as I can tell neither has yet. If and when they do News Hounds will cheerfully let you know. http://www.boston.com/news/local/maine/articles/2007/07/02/school_official_sues_fox_over_report_parody_story_in_maine/ That's why FAUX runs these stories, to use their anonymous army of "Blackflon"'s to harass and intimidate from the shadows. But at NO COST to FAUX just the victims of their "stories" And of course, the nice culture of FOX lifers sent the usual death threats as a result of the Fox bogus news reports. On FOX. nothing of Rush,s dope bust, rest assured we will hear plenty about al gore's son.. Tag: Enabling a NDIS MUX in Network Connections Tag: 96765
- Next
  - 1
    - Is there concept of large pages on Vista? Hi, Is there a concept of large pages on Vista? What is the maximum size of contiguous physical memory that is possible to allocate from an app on Vista and above? I would like to write an app that allocate a huge contiguous physical memory and fill it with data and pass it down to network driver for xmitting (for test purposes)? Is there a call available that I can use from within my app. The app is written in C. Regards, -Praveen Tag: Enabling a NDIS MUX in Network Connections Tag: 96764
  - 2
    - CreateNamedPipe without Disconnect & CloseHandle i have a serious problem with CreateNamedPipe: I am developing a virtual printer driver in VISTA, for that at one point i use NamedPipe ok.. Now if my all code is run good then there is no any problem becuse at the end of printing job i disconnect this named pipe and close this handle. Now consider the case that my NamedPipe is created and without close it my printer driver crash at some point means when ever second time any print job is there it does not createNamePipe gives me error ERROR_ALREADY_EXISTS that "Cannot create a file when that file already exists". here i write my code for create named pipe hBitmapPrinterPipe = CreateNamedPipe( L"\\\\.\\Pipe\ \BitmapPrinterPipe", // pipe name PIPE_ACCESS_DUPLEX| FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES, MAX_PATH, MAX_PATH, NMPWAIT_USE_DEFAULT_WAIT, NULL); if(hBitmapPrinterPipe == INVALID_HANDLE_VALUE) { GetLastError()); } Using this code i create my pipe.. so my question is there is any method from which i can reopen my existing server pipe and close it.. OR there is any solution from which i can open the another instance of the same name pipe.. so please write me which solution is best for me and how can i do it.. Thanks in advance.. Tag: Enabling a NDIS MUX in Network Connections Tag: 96751
  - 3
    - Install two upper filter at the same time? I'm developing a upper filter for a ps2 mouse like device. well, there is another a ps2 mouse too and that device has already installed with a upper filter dirver for the mouclass driver and also i8042 driver. My question is that is it possible to install a upper filter ? Thanks -chueh8 Tag: Enabling a NDIS MUX in Network Connections Tag: 96750
  - 4
    - NDIS60 Miniport sharing memory with user mode and WHQL Hi, I need to share memory between user mode application and the NDIS60 Miniport driver: 1. Allocate memory in user space. In driver, I use NdisAllocateMdl (which will also build MDL and lock the pages depending on the buffer is from Non Paged pool or not). Then I call MmGetSystemAddressForMdlSafe to get the driver accessible address. So will this non NDIS routine (MmGetSystemAddressForMdlSafe) be approved by WHQL if used in NDIS driver? The DDK points to use this routine instead of NdisBufferVirtualAddressSafe which is not supported in NDIS60. 2. Allocate memory in kernel space. I see that the MmGetSystemAddressForMdlSafe is a macro internally calling MmMapLockedPagesSpecifyCache function with KernelMode as AccessMode. Will WHQL approve (assuming MmGetSystemAddressForMdlSafe is approved) if I use the later routine to map memory to user space? Please let me know. Thanks, Aniketa Tag: Enabling a NDIS MUX in Network Connections Tag: 96747
  - 5
    - usb camera filter driver This is a multi-part message in MIME format. ------=_NextPart_000_0043_01C7BEEE.4FAA4040 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Everybody, I write usb camera filter driver, i see toaster filter example in DDK = and make the same. but i have a problem when use mode application access = filter driver by IOCL. Following is kernel mode code is create object control NTSTATUS FilterCreateControlObject( IN PDEVICE_OBJECT DeviceObject ) { UNICODE_STRING ntDeviceName; UNICODE_STRING symbolicLinkName; PCONTROL_DEVICE_EXTENSION deviceExtension; NTSTATUS status =3D STATUS_UNSUCCESSFUL; UNICODE_STRING sddlString; //PAGED_CODE(); // // Using unsafe function so that the IRQL remains at PASSIVE_LEVEL. // IoCreateDeviceSecure & IoCreateSymbolocLink must be called at // PASSIVE_LEVEL. // ExAcquireFastMutexUnsafe(&ControlMutex); // // If this is a first instance of the device, then create a = controlobject. // and register dispatch points to handle ioctls. // if(1 =3D=3D ++InstanceCount) { DbgPrint("Start Create Object\n"); // // Initialize the unicode strings // RtlInitUnicodeString(&ntDeviceName, NTDEVICE_NAME_STRING); RtlInitUnicodeString(&symbolicLinkName, SYMBOLIC_NAME_STRING); // // Initialize a security descriptor string. Refer to SDDL docs in = theSDK // for more info. // RtlInitUnicodeString(&sddlString, L"D:P(A;;GA;;;SY)(A;;GA;;;BA)"); // // Create a named deviceobject so that applications or drivers // can directly talk to us without going through the entire stack. // This call could fail if there are not enough resources or // another deviceobject of same name exits (name collision). // Let us use the new IoCreateDeviceSecure and specify a security // descriptor (SD) that allows only System and Admin groups to access = the // control device. Let us also specify a unique guid to allow = administrators // to change the SD if he desires to do so without changing the = driver. // The SD will be stored in // HKLM\SYSTEM\CCSet\Control\Class\<GUID>\Properties\Security // An admin can overide the SD specified in the below call by = modifying // the registry. //=20 status =3D IoCreateDeviceSecure(DeviceObject->DriverObject, sizeof(CONTROL_DEVICE_EXTENSION), &ntDeviceName, FILE_DEVICE_UNKNOWN, FILE_DEVICE_SECURE_OPEN, FALSE, &sddlString,=20 (LPCGUID)&GUID_SD_FILTER_CONTROL_OBJECT, &ControlDeviceObject ); if(NT_SUCCESS(status)) { =20 ControlDeviceObject->Flags |=3D DO_BUFFERED_IO; status =3D IoCreateSymbolicLink(&symbolicLinkName, &ntDeviceName); if(!NT_SUCCESS(status)) { IoDeleteDevice(ControlDeviceObject); DebugPrint(("IoCreateSymbolicLink failed %x\n", status)); goto End; } deviceExtension =3D ControlDeviceObject->DeviceExtension; deviceExtension->Type =3D DEVICE_TYPE_CDO; deviceExtension->ControlData =3D NULL; deviceExtension->Deleted =3D FALSE; ControlDeviceObject->Flags &=3D ~DO_DEVICE_INITIALIZING; }else { DebugPrint(("IoCreateDevice failed %x\n", status)); } =20 DbgPrint("End Create Object\n"); } End: =20 ExReleaseFastMutexUnsafe(&ControlMutex); return status; } Following is user mode application to access filter driver by IOCL: HANDLE hdevice =3D CreateFile(TEXT("\\\\.\\UsbcameraFilter"), = GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL); if (hdevice =3D=3D INVALID_HANDLE_VALUE) { printf("Unable to open UsbcameraFilter device - error %d\n", = GetLastError()); return 1; } When i run debug user mode application it display error in WinDbg is: Access violation - code c0000005 (!!! second chance !!!) nt!IofCallDriver+0x24: 804ec046 8b7108 mov esi,[ecx+0x8] I don't know why, Everyone have experience about write usb camera filter = driver pls help me, thanks very alot. David, ------=_NextPart_000_0043_01C7BEEE.4FAA4040 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2180" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT face=3DArial size=3D2>Hi Everybody,</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>I write usb camera filter driver, i see = toaster=20 filter example in DDK and make the same. but i have a problem when use = mode=20 application access filter driver by IOCL.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Following is kernel mode code is = create object=20 control</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial=20 size=3D2>NTSTATUS<BR>FilterCreateControlObject(<BR>   &nbs= p;   =20 IN PDEVICE_OBJECT = DeviceObject<BR>       =20 )<BR>{<BR> UNICODE_STRING    ntDeviceName;<BR>&n= bsp;UNICODE_STRING    symbolicLinkName;<BR> PCON= TROL_DEVICE_EXTENSION deviceExtension;<BR> NTSTATUS  =    status=20 =3D=20 STATUS_UNSUCCESSFUL;<BR> UNICODE_STRING    sddlS= tring;</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2> //PAGED_CODE();</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2> //<BR> // Using unsafe = function so that=20 the IRQL remains at PASSIVE_LEVEL.<BR> // IoCreateDeviceSecure = &=20 IoCreateSymbolocLink must be called at<BR> //=20 PASSIVE_LEVEL.<BR> //<BR> ExAcquireFastMutexUnsafe(&Control= Mutex);</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2> //<BR> // If this is a first = instance of=20 the device, then create a controlobject.<BR> // and register = dispatch=20 points to handle ioctls.<BR> //<BR> if(1 =3D=3D=20 ++InstanceCount)<BR> {<BR>  DbgPrint("Start Create=20 Object\n");<BR>  //<BR>  // Initialize the unicode=20 strings<BR>  //<BR>  RtlInitUnicodeString(&ntDevi= ceName,=20 NTDEVICE_NAME_STRING);<BR>  RtlInitUnicodeString(&symbolicL= inkName,=20 SYMBOLIC_NAME_STRING);</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>  //<BR>  // = Initialize a=20 security descriptor string. Refer to SDDL docs in = theSDK<BR>  // for=20 more=20 info.<BR>  //<BR>  RtlInitUnicodeString(&sddlStri= ng,=20 L"D:P(A;;GA;;;SY)(A;;GA;;;BA)");</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>  //<BR>  // Create = a named=20 deviceobject so that applications or drivers<BR>  // can = directly talk=20 to us without going through the entire stack.<BR>  // This = call could=20 fail if there are not enough resources or<BR>  // another = deviceobject=20 of same name exits (name collision).<BR>  // Let us use the = new=20 IoCreateDeviceSecure and specify a security<BR>  // descriptor = (SD)=20 that allows only System and Admin groups to access the<BR>  // = control=20 device. Let us also specify a unique guid to allow=20 administrators<BR>  // to change the SD if he desires to do so = without=20 changing the driver.<BR>  // The SD will be stored=20 in<BR>  //=20 HKLM\SYSTEM\CCSet\Control\Class\<GUID>\Properties\Security<BR>&nbsp= ; //=20 An admin can overide the SD specified in the below call by=20 modifying<BR>  // the registry.<BR>  // = </FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>   status =3D=20 IoCreateDeviceSecure(DeviceObject->DriverObject,<BR>   =       sizeof(CONTROL_DEVICE_EXTENSION),<BR>=          &ntDeviceName,<= BR>         FILE_DEVICE_UNKN= OWN,<BR>         FILE_DEVICE= _SECURE_OPEN,<BR>         FA= LSE,<BR>         &sddlSt= ring,=20 <BR>         (LPCGUID)&G= UID_SD_FILTER_CONTROL_OBJECT,<BR>      &nbs= p;  &ControlDeviceObject<BR>     &= nbsp;   );</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial = size=3D2>   if(NT_SUCCESS(status))=20 {<BR>    <BR>    ControlDeviceObj= ect->Flags=20 |=3D DO_BUFFERED_IO;</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>    status =3D=20 IoCreateSymbolicLink(&symbolicLinkName, = &ntDeviceName);</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial = size=3D2>    if(!NT_SUCCESS(status))=20 {<BR>     IoDeleteDevice(ControlDeviceObject);<B= R>     DebugPrint(("IoCreateSymbolicLink=20 failed %x\n", status));<BR>     goto=20 End;<BR>    }</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>    deviceExtension = =3D=20 ControlDeviceObject->DeviceExtension;<BR>    devic= eExtension->Type=20 =3D = DEVICE_TYPE_CDO;<BR>    deviceExtension->ControlDa= ta =3D=20 NULL;<BR>    deviceExtension->Deleted =3D=20 FALSE;</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial=20 size=3D2>    ControlDeviceObject->Flags &=3D=20 ~DO_DEVICE_INITIALIZING;</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>   }else=20 {<BR>    DebugPrint(("IoCreateDevice failed %x\n",=20 status));<BR>   }<BR>  </FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>  DbgPrint("End Create=20 Object\n");<BR> }</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial=20 size=3D2>End:<BR> <BR> ExReleaseFastMutexUnsafe(&ControlMut= ex);<BR> return=20 status;<BR>}</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Following is user mode application to = access filter=20 driver by IOCL:</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>HANDLE hdevice =3D = CreateFile(TEXT("</FONT><A><FONT=20 face=3DArial size=3D2>\\\\.\\UsbcameraFilter</FONT></A><FONT = face=3DArial size=3D2>"),=20 GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);<BR> if (hdevice = =3D=3D=20 INVALID_HANDLE_VALUE)<BR> {<BR>  printf("Unable to open=20 UsbcameraFilter device - error %d\n", = GetLastError());<BR>  return=20 1;<BR> }</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>When i run debug user mode application = it display=20 error in WinDbg is:</FONT></DIV> <DIV> <P><FONT face=3DArial size=3D2>Access violation - code c0000005 (!!! = second chance=20 !!!)</FONT></P> <P><FONT face=3DArial size=3D2>nt!IofCallDriver+0x24:</FONT></P> <P><FONT face=3DArial size=3D2>804ec046 8b7108 mov = esi,[ecx+0x8]</FONT></P> <P><FONT face=3DArial size=3D2>I don't know why, Everyone = have experience about=20 write usb camera filter driver pls help me, thanks very alot.</FONT></P> <P><FONT face=3DArial size=3D2>David,</FONT></P></DIV></BODY></HTML> ------=_NextPart_000_0043_01C7BEEE.4FAA4040-- Tag: Enabling a NDIS MUX in Network Connections Tag: 96743
  - 6
    - Understanding the virtual to physical address translation rule in x86 I hope this newsgroup is suitable for this question. Thanks. I am reading the article below: http://www.codeproject.com/system/soviet_kernel_hack.asp However, I found that I can not understand the conclusion below: "Under Windows NT, page directory of currently running process is mapped to the virtual address 0xC0300000. This information, combined with our knowledge of virtual-to-physical address translation, leads us to two conclusions: 1.. Under Windows NT, 0x300th entry of a page directory holds the physical address of the page directory itself. 2.. Page table, corresponding to some virtual address, is accessible as 0xC0000000+((address>>10)&0x3FF000). With such translation page table, corresponding to the address 0xC0300000, is 0xC0300000 itself. In other words, page directory is also a page table that corresponds to the virtual address of a page directory itself. " How are these 2 conclusion generated? In the undocumented Win2000 book, I see the linear address can be used to find its PTE by: (linear_address)>>12 * 4 +0xC0000000. It seems that this rule is different from the one in the article. Which one is correct? I find myself a bit confusion regarding the principle. Thanks in advanced! Tag: Enabling a NDIS MUX in Network Connections Tag: 96742
  - 7
    - Ndis 'filter' driver compile problem in VISTA Hi Thanks in advance for any input! I compiled the WDK sample "ndis FILTER driver" in VISTA. compiled and linked fine. But I couldn't add addtional headers like windows.h, winreg.h etc. to the code. They are clashing with "ndis.h" and throws zillon errors! The compiler output log shows the include path is fine -> \\WinDDK \6000\inc\api\*.* Any compiler flag or env setting wrong? Any suggestions please? Thanks much again Ganesan Tag: Enabling a NDIS MUX in Network Connections Tag: 96737
  - 8
    - Help - Locking Kernel Thread Can someone give me a few groups on going about locking a kernel thread to one processor? I have an Intel core 2 duo processor and need to lock a kernel thread to one of the cores. Any help / suggestions would be greatly appreciated. Tag: Enabling a NDIS MUX in Network Connections Tag: 96734
  - 9
    - Mouse Driver Stack Structure Hey dri-xperts: I am really newbie in the driver world. Who is willing to tell me the structure of mouse driver in Windows, especially with mouse filter driver? Tag: Enabling a NDIS MUX in Network Connections Tag: 96726
  - 10
    - Waiting in KMDF A few more questions 1. If I want to put a thread to sleep in KMDF, what mechanisms can I use? E.g., lets say EvtIoRead callback is called, yet the hardware resources to process that are not available yet. I want EvtIoRead to go to sleep until its woken up by the ISR. In Linux kernel there are wait queues that a function can sleep on until woken up. Are there similar native constructs in KMDF, or if not, can I use WDM (if they are available) or WIN32 calls? Anything besides WaitLock? (WaitLock doesn't seem do just that, as it forces the code that acquires it to execute as a critical section, AFAIK) 2. Let say the immediate availability of hardware for a DMA depends on how many scatter-gather elements are in the request and the current state of hardware due to outstanding requests. I.e., if I follow the framework, I won't know how many scatter-gather elements are in the request until I am inside EvtProgramDma callback. If at that point the resources are not available, I would need to wait for their availability. So: a) EvtProgramDma runs at DISPATCH IRQL, which means that even WaitLock cannot be executed in blocking mode. If the hardware resources are not immediately available, what should the driver do at this point? Spinning for them seems like a huge waste of processor cycles. b) Alternatively, I could postpone DmaExecute until all the resources are available and spin on that in the Io callback at passive IRQL (see quesetion 1). However, is there a way to infer how many items will be in the scatter-gather list at that point? Is (request_size/PAGE_SIZE+1) a definite upper bound? Tag: Enabling a NDIS MUX in Network Connections Tag: 96724
  - 11
    - RNDIS Composite Device Hi, we have build a composite device with a RNDIS interface and a CDC ACM interface. If RNDIS uses the usb interfaces 0 and 1 evrything works fine. If I use the USB interfaces 2/3 for RNDIS I get a blue screen in usb8023.sys. The blue screen appears after the configuration descriptor was requested from the MI driver. OS: Windows XP SP2 without hot fixes. Has anybody a running solution where RNDIS works on a USB interface grater than 0/1 ? Thanks Guenter Tag: Enabling a NDIS MUX in Network Connections Tag: 96715
  - 12
    - Is there any need for extra code to run WHQL tests? Hi, I am writing a miniport driver for a PCI based network adapter. My question is - do I have to write any extra code or routines in the driver so that the DTM test controller can run the network card related tests ? I see that there are some macros and constants to aid debugging. Is there any similar set of routines available to display or collect output from the run of WHQL testcases? Regards, Sreenivasulu Y Tag: Enabling a NDIS MUX in Network Connections Tag: 96713
  - 13
    - Restricting access to USB devices based on session Hi, I have a server running on Windows Server 2003. I have a filter driver which filters IRP_MJ_CREATE requests. My intension is to block certain users from accessing the USB device(say, a thumb drive) based on session id. I have used SeQueryAuthenticationIdToken to get the session id in my dispatch function for IRP_MJ_CREATE in my filter driver. When I tried to access the device from the explorer (from different sessions), I expected a IRP_MJ_CREATE request so that I can block certain users. However, I observed that the session Id that I get is ALWAYS "0" in my filter driver. Is this correct? One more thing is that I didnt see a IRP_MJ_CREATE when I opened a explorer from a session to access the device. Is this how it works? How can I acheive what I want? Any comments are most welcome Thanks, Sri Tag: Enabling a NDIS MUX in Network Connections Tag: 96711
  - 14
    - Changes to PTE Structures on Vista Hi, recently I had to debug something strange on Vista and as I closer examined the problem I ran this command on Vista and on XP: dt -b nt!_MMPTE What it does is showing you the definition of the kernel PTE structures. I did compare the results of both systems and to my surprise there were some changes regarding the name of the first bit within the _MMPTE_HARDWARE structure. Pre Vista this bit was called Write (Uniprocessor) or Writable (Multiprocessor) depending on the kernel being used. Somehow this bit has gotten a new name "Dirty1". Is this only a name change that has occured or does the name change reflect a change in functionality? The WinDbg help file describe this bit imho somewhat confusing: "Writeable or read-only. Only on multiprocessor computers and any computer running Windows Vista or later" I don't think the approriate description could fit into one sentence (mabye a very long sentence). On Pre-Vista OS this bit 1 depends on the kernel being used so it is either called Write or Writable (on MP systems bit 11 is called Write and actually 2 bits are being used to prevent stalls across processors during write access). On Vista it is either something completely new and undocumented (now using a single write bit and two dirty bits Dirty and Dirty1) or the functionality of Vista is basically equivalent to the behaviour of Pre-Vista MP kernels (XP,2000,...). If the latter case there should be two tables, one for MP and one for UNI. If the first is the case here, even more tables would be required (and comments). Does anyone know what happened here?? Cheers / Andreas Denter Tag: Enabling a NDIS MUX in Network Connections Tag: 96697
  - 15
    - WinDbg !ALPC Command on Vista Hi, I am trying to run the !ALPC command within WinDbg on Vista and was told in another newsgroup (WinDbg) that it requires non public symbol files in order to succeed. What I am trying to do is debug an old application hanging and from what I see it is waiting for an LPC call. Afaik LPC is now emulated through ALPC. WinDbg does not support the "old" and well functioning !lpc command and tells you to use !alpc instead which is broken because the required symbols are not available to the public. How can someone debug such a problem? Could the problem be solved with another debugger (application) or should it be solved within Windows and its symbols (operating system)? Unfortunately there is not too many alternatives to WinDbg remaining on the market..... Cheers / Andreas Tag: Enabling a NDIS MUX in Network Connections Tag: 96696
  - 16
    - How to replace Graphics User Mode driver on Vista system What is the detailed steps to replace user mode graphics driver on Vista without reboot etc? thanks Tag: Enabling a NDIS MUX in Network Connections Tag: 96695
  - 17
    - File system monitor hi I am trying to develop a very simple file system monitor. I looked in the WDK at the sfilter sample and this is the aproach I want to go with (attach to the device and receive I/O notifications) The thing is that the sample is too big for me I have to admit, and too complex, I don't need to monitor pipe I/O or CD-ROM or other I/O just the files on the local volumes. I tried to make a separate device that attaches to \\Device\ \HarddiskVolume1 but I don't seem to get any I/O notifications. In my driver entry routine I first get the device object pointer of the target device mentioned above useing GetDeviceObjectPointer, with FILE_READ_ACCESS Then I create my own device with the same device type and characteristics as the target device. after this I set my device's flags to DO_BUFFERED_IO and direct_io Then I attach my device to the target device. After this I expect that in my read,write, mj_file_system_control dispatch routines to receive irps, because I am attached, but i don't receive them Probably I am missing something, I mean for sure I am missing something. I want if you can to point me somewhere where a similar code posted and explained. I have worked with drivers before but not with File_system drivers, and I know they are the hardest to manage. Or if someone is kind enough to give me right steps in order to get I/ O requests from an attached device driver. Tag: Enabling a NDIS MUX in Network Connections Tag: 96693
  - 18
    - problem with IOCTL_TAPE_GET_POSITION I have a class for controlling a Sony digital tape player, and have successfully used various IOCTL tape commands, but I am having a problem with TAPE_GET_POSITION: CODE: { DWORD junk; DWORD err = 0; TAPE_GET_POSITION tgp; tpg.Type = TAPE_ABSOLUTE_POSITION; if (!DeviceIOControl(tapeHandle, IOCTL_TAPE_GET_POSITION, &tgp, sizeof(tgp), NULL, 0, &junk, (LPOVERLAPPED) NULL)) err = GetTapeError(); return err; } I am getting error 24, ERROR_BAD_LENGTH "The program issued a command but the length is incorrect" TAPE_GET_POSITION is defined in WinNT.h as: typedef struct _TAPE_GET_POSITION { DWORD Type; DWORD Partition; LARGE_INTEGER Offset; } TAPE_GET_POSITION, *PTAPE_GET_POSITION Any help would be appreciated. Tag: Enabling a NDIS MUX in Network Connections Tag: 96690
  - 19
    - KMDF Scatter-Gather in EvtProgramDma vs Common Buffer Hi everyone I am implementing a KMDF driver for a PCIE device and following the toolkit's DMA framework. I don't see an elegant way of solving my problem. My hardware device has up to 16 DMA engines, so it is capable of initiating multiple DMA transfers in parallel. I can use that functionality to implement scatter-gather transfers or multiple transfers, but there are limitations which I don't seem to be able to overcome. 1. A length of the DMA access for this device has to be a multiple of 128. I truncate the user IO request to satisfy that requirement for the transaction as a whole. However, certain elements of SG list I receive in EvtProgramDma, do not necessarily satisfy this requirement. Is there a way to force the framework to force minimal length of SG list fragments? Setting device alignment to 127 doesn't help. Not sure if forcing user apps to do 128-byte alignment would solve this problem... 2. Alternatively, I could switch to using packet-based rather than SG-based DMAs, but framework claims to have a limit of no more than a single outstanding DMA at any given time when used in packet mode. That would not allow me to achieve good PCIE utilization at all, i.e. much lower bandwidth - doesn't work. Any way of overcoming the limitation? Why is it there in the first place? 3. Finally, I could do DMA transfers to a pre-allocated common buffer, and then copy them into the user buffer. WDF documentation doesn't really show how that plugs into the framework. I understand I could take an interrupt, schedule a work item at a lower IRQL, and in the work handler get a handle to user request memory and copy it there from the common buffer. However, would calling DMA completion routines interfere with that, e.g. overwrite the request memory or do something equally bad? Furthermore, I would effectively be doing DMA my way. Is there a WDF-suggested way of using common buffer with DMAs where the DMA results need to be copied to the user buffer? Any suggestions would be much appreciated. Tag: Enabling a NDIS MUX in Network Connections Tag: 96688
  - 20
    - Device-defined index of the descriptor for a USB scanner Hello, I am writing a user-mode driver for a USB scanner, adapted from the wiascanr sample. I want to use the IO Control code IOCTL_GET_USB_DESCRIPTOR. In DeviceIoControl parameters, I need lpInBuffer, which is a pointer to the USBSCAN_GET_DESCRIPTOR structure: typedef struct _USBSCAN_GET_DESCRIPTOR { IN UCHAR DescriptorType; IN UCHAR Index; IN USHORT LanguageId; } USBSCAN_GET_DESCRIPTOR, *PUSBSCAN_GET_DESCRIPTOR; In this structure, Index "specifies the device-defined index of the descriptor that is to be retrieved." Where can I find this value? Thank you! Tag: Enabling a NDIS MUX in Network Connections Tag: 96683
  - 21
    - Need information about writing kernel-mode debuggers Hi, I need information about writing kernel-mode debugger such as SoftIce. Any link, book or sample is appreciated. Thanks in advance. Tag: Enabling a NDIS MUX in Network Connections Tag: 96678
  - 22
    - Ethernet and BDA Hello! I have written drivers for 1394 DVB tuner devices. The drivers support the BDA interface. Now I have got an Ethernet device connected to my Ethernet bus / Ethernet card. The objective is to implement the same solution for this device (supporting a BDA tuner and BDA receiver filter). Has anybody got some experiences or hints relating an Ethernet / BDA implementation? Would NDIS be the right way to go? Thanks in advance, Best regards, Norbert Tag: Enabling a NDIS MUX in Network Connections Tag: 96673
  - 23
    - 64-bit DMA transaction for PCIe interface Dear All, I am porting AVStream driver to a TV capture addon card with PCIe interface. This PCIe card supports 64-bit DMA transaction with ScatterGather feature and it is a DMA bus master. I used IoGetDmaAdapter function to get DMA_ADAPTER structure. However, the WDK document about "DEVICE_DESCRIPTION" said that *********************************************************** If the ScatterGather member is set to TRUE and the InterfaceType member is set to PCIBus, the Dma32BitAddresses member is ignored and the device is assumed to support 32-bit DMA addresses. *********************************************************** Does it mean that I cannot use the 64-bit DMA transaction of this PCIe card? How can I enable 64-bit DMA transaction? Thanks, Edward Tag: Enabling a NDIS MUX in Network Connections Tag: 96663
  - 24
    - Setting OID_802_11_ADD_KEY through WMI I used wbemtest to query the classes of the MSNDIS superclass. It looks like none of the classes support WPA or WPA2. For example, there is no class that can be used for OID_802_11_ADD_KEY or OID_802_11_ENCRYPTION_STATUS. Can WPA/WPA2 attributes be set on an underlying 802.11 miniport driver through WMI? Tag: Enabling a NDIS MUX in Network Connections Tag: 96662
  - 25
    - I'm right about Drivers? If I have learned well there are 2 types of drivers generations: 1) WDM (Windows Driver Model) 2) WDF (Windows Driver Foundation) WDM is the "old" way of driver development (3790.1830 for example) and WDF the new way (6001 for example) . In WDF I have a framework that semplify sistem integration so the user can concentrate on driver functionality and not on driver integration with OS. In WDF i can have 2 types of drivers UMDF (User Mode Driver Framework) and KMDF (Kernel Mode Driver Framwork). Each one use methods, propertis and events of the framework to manage driver stack and IRP flow and not directly over objects. Is right all I have write? Best regards GM Tag: Enabling a NDIS MUX in Network Connections Tag: 96656

The MUX that we're currrently writing shows up in the Network
Connections window as DISABLED even though it is processing sent and
received packets. What is required to "Enable" an NDIS IM mux?
TIA for your help. Wes

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