IRP打印

NTSTATUS
FilterEvtIrpPreprocess(
    IN WDFDEVICE Device,
    PIRP Irp
)
{
    PIO_STACK_LOCATION currentStack;
    LPSTR              major;

    currentStack = IoGetCurrentIrpStackLocation(Irp);

    major = "???";
    switch (currentStack->MajorFunction) {
    case IRP_MJ_CREATE:                   major = "IRP_MJ_CREATE";                     break;
    case IRP_MJ_CREATE_NAMED_PIPE:        major = "IRP_MJ_CREATE_NAMED_PIPE";          break;
    case IRP_MJ_CLOSE:                    major = "IRP_MJ_CLOSE";                      break;
    case IRP_MJ_READ:                     major = "IRP_MJ_READ";                       break;
    case IRP_MJ_WRITE:                    major = "IRP_MJ_WRITE";                      break;
    case IRP_MJ_QUERY_INFORMATION:        major = "IRP_MJ_QUERY_INFORMATION";          break;
    case IRP_MJ_SET_INFORMATION:          major = "IRP_MJ_SET_INFORMATION";            break;
    case IRP_MJ_QUERY_EA:                 major = "IRP_MJ_QUERY_EA";                   break;
    case IRP_MJ_SET_EA:                   major = "IRP_MJ_SET_EA";                     break;
    case IRP_MJ_FLUSH_BUFFERS:            major = "IRP_MJ_FLUSH_BUFFERS";              break;
    case IRP_MJ_QUERY_VOLUME_INFORMATION: major = "IRP_MJ_QUERY_VOLUME_INFORMATION";   break;
    case IRP_MJ_SET_VOLUME_INFORMATION:   major = "IRP_MJ_SET_VOLUME_INFORMATION";     break;
    case IRP_MJ_DIRECTORY_CONTROL:        major = "IRP_MJ_DIRECTORY_CONTROL";          break;
    case IRP_MJ_FILE_SYSTEM_CONTROL:      major = "IRP_MJ_FILE_SYSTEM_CONTROL";        break;
    case IRP_MJ_DEVICE_CONTROL:           major = "IRP_MJ_DEVICE_CONTROL";             break;
    case IRP_MJ_INTERNAL_DEVICE_CONTROL:  major = "IRP_MJ_INTERNAL_DEVICE_CONTROL";    break;
    case IRP_MJ_SHUTDOWN:                 major = "IRP_MJ_SHUTDOWN";                   break;
    case IRP_MJ_LOCK_CONTROL:             major = "IRP_MJ_LOCK_CONTROL";               break;
    case IRP_MJ_CLEANUP:                  major = "IRP_MJ_CLEANUP";                    break;
    case IRP_MJ_CREATE_MAILSLOT:          major = "IRP_MJ_CREATE_MAILSLOT";            break;
    case IRP_MJ_QUERY_SECURITY:           major = "IRP_MJ_QUERY_SECURITY";             break;
    case IRP_MJ_SET_SECURITY:             major = "IRP_MJ_SET_SECURITY";               break;
    case IRP_MJ_POWER:                    major = "IRP_MJ_POWER";                      break;
    case IRP_MJ_SYSTEM_CONTROL:           major = "IRP_MJ_SYSTEM_CONTROL";             break;
    case IRP_MJ_DEVICE_CHANGE:            major = "IRP_MJ_DEVICE_CHANGE";              break;
    case IRP_MJ_QUERY_QUOTA:              major = "IRP_MJ_QUERY_QUOTA";                break;
    case IRP_MJ_SET_QUOTA:                major = "IRP_MJ_SET_QUOTA";                  break;
    case IRP_MJ_PNP:                      major = "IRP_MJ_PNP";                        break;
    }

    if (major)
    {
        KdPrint(("[webcam-interception] major: %s\n", major));
    }
}