120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
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/*++
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Copyright (C) Microsoft Corporation, 2000
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Module Name:
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init.c
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Abstract:
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This file contains the initialization code for iSCSI port driver.
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Environment:
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kernel mode only
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Revision History:
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--*/
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#include "port.h"
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NTSTATUS
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DriverEntry(
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IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath
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);
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(INIT, DriverEntry)
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#endif
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NTSTATUS
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DriverEntry(
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IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath
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)
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/*+++
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Routine Description:
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Entry point for the driver.
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Arguements:
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DriverObject - Pointer to the driver object created by the system.
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RegistryPath - Registry path for the driver
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Return Value :
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STATUS_SUCCESS if initialization was successful
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Appropriate NTStatus code on failure
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--*/
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{
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NTSTATUS status;
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PISCSIPORT_DRIVER_EXTENSION driverExtension = NULL;
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DebugPrint((3, "iSCSI Port DriverEntry\n"));
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status = IoAllocateDriverObjectExtension(DriverObject,
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(PVOID) ISCSI_TAG_DRIVER_EXTENSION,
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sizeof(ISCSIPORT_DRIVER_EXTENSION),
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&driverExtension);
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if (NT_SUCCESS(status)) {
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RtlZeroMemory(driverExtension,
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sizeof(ISCSIPORT_DRIVER_EXTENSION));
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driverExtension->DriverObject = DriverObject;
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driverExtension->RegistryPath.Length = RegistryPath->Length;
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driverExtension->RegistryPath.MaximumLength =
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RegistryPath->MaximumLength;
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driverExtension->RegistryPath.Buffer =
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ExAllocatePoolWithTag(PagedPool,
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RegistryPath->MaximumLength,
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ISCSI_TAG_REGPATH);
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if (driverExtension->RegistryPath.Buffer == NULL) {
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return STATUS_NO_MEMORY;
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}
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RtlCopyUnicodeString(&(driverExtension->RegistryPath),
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RegistryPath);
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//
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// Hard code bus type for now
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//
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driverExtension->BusType = BusTypeScsi;
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} else if (status == STATUS_OBJECT_NAME_COLLISION) {
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//
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// Extension already exists. Get a pointer to it
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//
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driverExtension = IoGetDriverObjectExtension(
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DriverObject,
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(PVOID) ISCSI_TAG_DRIVER_EXTENSION);
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ASSERT(driverExtension != NULL);
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} else {
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DebugPrint((1, "iSCSI : Could not allocate driver extension %lx\n",
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status));
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return status;
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}
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//
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// Update the driver object with the entry points
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//
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DriverObject->MajorFunction[IRP_MJ_SCSI] = iScsiPortGlobalDispatch;
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DriverObject->MajorFunction[IRP_MJ_CREATE] = iScsiPortGlobalDispatch;
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DriverObject->MajorFunction[IRP_MJ_CLOSE] = iScsiPortGlobalDispatch;
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DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = iScsiPortGlobalDispatch;
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DriverObject->MajorFunction[IRP_MJ_PNP] = iScsiPortGlobalDispatch;
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DriverObject->MajorFunction[IRP_MJ_POWER] = iScsiPortGlobalDispatch;
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DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = iScsiPortGlobalDispatch;
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DriverObject->DriverUnload = iScsiPortUnload;
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DriverObject->DriverExtension->AddDevice = iScsiPortAddDevice;
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return STATUS_SUCCESS;
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}
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