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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
ntinit.c
Abstract:
NT specific routines for loading and configuring the
automatic connection notification driver (acd.sys).
Author:
Anthony Discolo (adiscolo) 18-Apr-1995
Revision History:
--*/
#include <ndis.h>
#include <cxport.h>
#include <tdi.h>
#include <tdikrnl.h>
#include <tdistat.h>
#include <tdiinfo.h>
#include <acd.h>
#include "acdapi.h"
#include "acddefs.h"
#include "mem.h"
#include "debug.h"
//
// Global variables
//
#if DBG
ULONG AcdDebugG = 0x0; // see debug.h for flags
#endif
PDRIVER_OBJECT pAcdDriverObjectG;
PDEVICE_OBJECT pAcdDeviceObjectG;
HANDLE hSignalNotificationThreadG;
//
// Imported routines
//
VOID
AcdNotificationRequestThread(
PVOID context
);
//
// External function prototypes
//
NTSTATUS
AcdDispatch(
IN PDEVICE_OBJECT pDeviceObject,
IN PIRP pIrp
);
VOID
AcdConnectionTimer(
IN PDEVICE_OBJECT pDeviceObject,
IN PVOID pContext
);
//
// Internal function prototypes
//
NTSTATUS
DriverEntry(
IN PDRIVER_OBJECT pDriverObject,
IN PUNICODE_STRING pRegistryPath
);
BOOLEAN
GetComputerName(
IN PUCHAR szName,
IN USHORT cbName
);
VOID
AcdUnload(
IN PDRIVER_OBJECT pDriverObject
);
#ifdef ALLOC_PRAGMA
#pragma alloc_text(INIT, DriverEntry)
#pragma alloc_text(PAGE, AcdUnload)
#endif // ALLOC_PRAGMA
NTSTATUS
DriverEntry(
IN PDRIVER_OBJECT pDriverObject,
IN PUNICODE_STRING pRegistryPath
)
/*++
DESCRIPTION
Initialization routine for the network connection notification driver.
It creates the device object and initializes the driver.
ARGUMENTS
pDriverObject: a pointer to the driver object created by the system.
pRegistryPath - the name of the configuration node in the registry.
RETURN VALUE
The final status from the initialization operation.
--*/
{
NTSTATUS status;
UNICODE_STRING deviceName;
ULONG i;
OBJECT_ATTRIBUTES objectAttributes;
IO_STATUS_BLOCK ioStatusBlock;
PDEVICE_OBJECT pDeviceObject;
PFILE_OBJECT pFileObject;
//
// Initialize the spin lock.
//
KeInitializeSpinLock(&AcdSpinLockG);
//
// Initialize the notification and completion
// connection queues.
//
InitializeListHead(&AcdNotificationQueueG);
InitializeListHead(&AcdCompletionQueueG);
InitializeListHead(&AcdConnectionQueueG);
InitializeListHead(&AcdDriverListG);
//
// Initialize our zone allocator.
//
InitializeObjectAllocator();
//
// Create the device object.
//
pAcdDriverObjectG = pDriverObject;
RtlInitUnicodeString(&deviceName, ACD_DEVICE_NAME);
status = IoCreateDevice(
pDriverObject,
0,
&deviceName,
FILE_DEVICE_ACD,
0,
FALSE,
&pAcdDeviceObjectG);
if (!NT_SUCCESS(status)) {
DbgPrint(
"AcdDriverEntry: IoCreateDevice failed (status=0x%x)\n",
status);
return status;
}
//
// Initialize the driver object.
//
//pDriverObject->DriverUnload = AcdUnload;
pDriverObject->DriverUnload = NULL;
for (i = 0; i < IRP_MJ_MAXIMUM_FUNCTION; i++)
pDriverObject->MajorFunction[i] = AcdDispatch;
pDriverObject->FastIoDispatch = NULL;
//
// Initialize the connection timer. This is
// used to make sure pending requests aren't
// blocked forever because the user-space
// process died trying to make a connection.
//
IoInitializeTimer(pAcdDeviceObjectG, AcdConnectionTimer, NULL);
//
// Create the worker thread. We need
// a thread because these operations can occur at
// DPC irql.
//
KeInitializeEvent(
&AcdRequestThreadEventG,
NotificationEvent,
FALSE);
status = PsCreateSystemThread(
&hSignalNotificationThreadG,
THREAD_ALL_ACCESS,
NULL,
NULL,
NULL,
AcdNotificationRequestThread,
NULL);
if (!NT_SUCCESS(status)) {
DbgPrint(
"AcdDriverEntry: PsCreateSystemThread failed (status=0x%x)\n",
status);
return status;
}
return STATUS_SUCCESS;
} // DriverEntry
VOID
AcdUnload(
IN PDRIVER_OBJECT pDriverObject
)
{
NTSTATUS status;
//
// BUGBUG: Make sure to unlink all driver
// blocks before unloading!
//
IoDeleteDevice(pAcdDeviceObjectG);
//
// Free zone allocator.
//
FreeObjectAllocator();
} // AcdUnload
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