622 lines
17 KiB
C
622 lines
17 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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pdo.c
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Abstract:
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This file contains PDO routines
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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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iScsiPortPdoDeviceControl(
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IN PDEVICE_OBJECT Pdo,
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IN PIRP Irp
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)
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{
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PISCSI_PDO_EXTENSION pdoExtension = Pdo->DeviceExtension;
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PCOMMON_EXTENSION commonExtension = Pdo->DeviceExtension;
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PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
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ULONG ioControlCode = irpStack->Parameters.DeviceIoControl.IoControlCode;
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NTSTATUS status;
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ULONG isRemoved;
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isRemoved = iSpAcquireRemoveLock(Pdo, Irp);
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if(isRemoved) {
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iSpReleaseRemoveLock(Pdo, Irp);
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Irp->IoStatus.Status = STATUS_DEVICE_DOES_NOT_EXIST;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_DEVICE_DOES_NOT_EXIST;
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}
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DebugPrint((3, "PDO DeviceControl - IO Control Code : 0x%08x\n",
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ioControlCode));
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switch (ioControlCode) {
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case IOCTL_STORAGE_QUERY_PROPERTY: {
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//
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// Validate the query
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//
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PSTORAGE_PROPERTY_QUERY query = Irp->AssociatedIrp.SystemBuffer;
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if(irpStack->Parameters.DeviceIoControl.InputBufferLength <
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sizeof(STORAGE_PROPERTY_QUERY)) {
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status = STATUS_INVALID_PARAMETER;
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break;
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}
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status = iScsiPortQueryProperty(Pdo, Irp);
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return status;
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break;
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}
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case IOCTL_SCSI_GET_IP_ADDRESS: {
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PISCSI_IP_ADDRESS iScsiAddress = Irp->AssociatedIrp.SystemBuffer;
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if(irpStack->Parameters.DeviceIoControl.OutputBufferLength <
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sizeof(ISCSI_IP_ADDRESS)) {
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status = STATUS_BUFFER_TOO_SMALL;
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break;
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}
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iScsiAddress->IPAddress = pdoExtension->TargetIPAddress;
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iScsiAddress->PortNumber = pdoExtension->TargetPortNumber;
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Irp->IoStatus.Information = sizeof(ISCSI_IP_ADDRESS);
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status = STATUS_SUCCESS;
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break;
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}
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case IOCTL_SCSI_GET_ADDRESS: {
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PSCSI_ADDRESS scsiAddress = Irp->AssociatedIrp.SystemBuffer;
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if(irpStack->Parameters.DeviceIoControl.OutputBufferLength <
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sizeof(SCSI_ADDRESS)) {
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status = STATUS_BUFFER_TOO_SMALL;
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break;
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}
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scsiAddress->Length = sizeof(PSCSI_ADDRESS);
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scsiAddress->PortNumber = (UCHAR) pdoExtension->PortNumber;
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scsiAddress->PathId = pdoExtension->PathId;
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scsiAddress->TargetId = pdoExtension->TargetId;
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scsiAddress->Lun = pdoExtension->Lun;
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Irp->IoStatus.Information = sizeof(SCSI_ADDRESS);
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status = STATUS_SUCCESS;
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break;
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}
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default: {
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IoSkipCurrentIrpStackLocation(Irp);
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iSpReleaseRemoveLock(Pdo, Irp);
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return IoCallDriver(commonExtension->LowerDeviceObject, Irp);
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}
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} // switch (ioControlCode)
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iSpReleaseRemoveLock(Pdo, Irp);
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Irp->IoStatus.Status = status;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return status;
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}
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NTSTATUS
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iScsiPortPdoPnp(
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IN PDEVICE_OBJECT LogicalUnit,
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IN PIRP Irp
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)
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{
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PISCSI_PDO_EXTENSION pdoExtension = LogicalUnit->DeviceExtension;
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PCOMMON_EXTENSION commonExtension = LogicalUnit->DeviceExtension;
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PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
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NTSTATUS status = STATUS_SUCCESS;
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ULONG isRemoved;
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isRemoved = iSpAcquireRemoveLock(LogicalUnit, Irp);
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if(isRemoved) {
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iSpReleaseRemoveLock(LogicalUnit, Irp);
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Irp->IoStatus.Status = STATUS_DEVICE_DOES_NOT_EXIST;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_DEVICE_DOES_NOT_EXIST;
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}
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DebugPrint((1, "PDO PnP - Minorfunction Code : 0x%x\n",
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irpStack->MinorFunction));
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switch (irpStack->MinorFunction) {
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case IRP_MN_START_DEVICE: {
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commonExtension->CurrentPnpState = IRP_MN_START_DEVICE;
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commonExtension->PreviousPnpState = 0xff;
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commonExtension->IsInitialized = TRUE;
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//
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// Make up numbers here
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//
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pdoExtension->PortNumber = 5;
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pdoExtension->PathId = 0;
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//
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// N.B. TargetId is set in iSpInitializeLocalNodes
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// routine when the PDO is created.
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//
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pdoExtension->Lun = 0;
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Irp->IoStatus.Status = STATUS_SUCCESS;
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break;
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}
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case IRP_MN_QUERY_DEVICE_RELATIONS: {
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PDEVICE_RELATIONS deviceRelations;
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if(irpStack->Parameters.QueryDeviceRelations.Type !=
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TargetDeviceRelation) {
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DebugPrint((1, "Not TargetDevicesRelations for PDO\n"));
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break;
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}
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//
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// DEVICE_RELATIONS definition contains one object pointer.
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//
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deviceRelations = iSpAllocatePool(PagedPool,
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sizeof(DEVICE_RELATIONS),
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ISCSI_TAG_DEVICE_RELATIONS);
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if(deviceRelations == NULL) {
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Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
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break;
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}
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RtlZeroMemory(deviceRelations, sizeof(DEVICE_RELATIONS));
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deviceRelations->Count = 1;
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deviceRelations->Objects[0] = LogicalUnit;
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ObReferenceObject(deviceRelations->Objects[0]);
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = (ULONG_PTR) deviceRelations;
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DebugPrint((1, "Completing QDR for PDO successfully\n"));
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break;
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}
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case IRP_MN_QUERY_PNP_DEVICE_STATE: {
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Irp->IoStatus.Status = STATUS_SUCCESS;
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break;
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}
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case IRP_MN_QUERY_DEVICE_TEXT: {
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Irp->IoStatus.Status =
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iSpQueryDeviceText(
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LogicalUnit,
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irpStack->Parameters.QueryDeviceText.DeviceTextType,
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irpStack->Parameters.QueryDeviceText.LocaleId,
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(PWSTR *) &Irp->IoStatus.Information
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);
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break;
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}
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case IRP_MN_QUERY_ID: {
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UCHAR rawIdString[64] = "UNKNOWN ID TYPE";
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ANSI_STRING ansiIdString;
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UNICODE_STRING unicodeIdString;
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BOOLEAN multiStrings;
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PINQUIRYDATA inquiryData = &(pdoExtension->InquiryData);
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if ((pdoExtension->InquiryDataInitialized) == FALSE) {
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DebugPrint((3, "PdoPnp : Will obtain inquiry data\n"));
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status = IssueInquiry(LogicalUnit);
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if (!NT_SUCCESS(status)) {
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DebugPrint((1,
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"Failed to get inquiry data. Status : %x\n",
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status));
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Irp->IoStatus.Status = status;
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iSpReleaseRemoveLock(LogicalUnit, Irp);
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return status;
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} else {
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DebugPrint((3, "PdoPnp : Obtained Inquiry data.\n"));
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}
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}
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//
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// We've been asked for the id of one of the physical device objects
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//
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DebugPrint((3, "PDO PnP: Got IRP_MN_QUERY_ID\n"));
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RtlInitUnicodeString(&unicodeIdString, NULL);
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RtlInitAnsiString(&ansiIdString, NULL);
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switch(irpStack->Parameters.QueryId.IdType) {
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case BusQueryDeviceID: {
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DebugPrint((3, "BusQueryDeviceID\n"));
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status = iScsiPortGetDeviceId(LogicalUnit,
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&unicodeIdString);
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multiStrings = FALSE;
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break;
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}
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case BusQueryInstanceID: {
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DebugPrint((3, "BusQueryInstanceID\n"));
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status = iScsiPortGetInstanceId(LogicalUnit,
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&unicodeIdString);
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multiStrings = FALSE;
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break;
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}
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case BusQueryHardwareIDs: {
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DebugPrint((3, "BusQueryHardwareIDs\n"));
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status = iScsiPortGetHardwareIds(
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LogicalUnit->DriverObject,
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&(pdoExtension->InquiryData),
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&unicodeIdString);
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multiStrings = TRUE;
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break;
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}
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case BusQueryCompatibleIDs: {
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DebugPrint((3, "BusQueryCompatibleIDs\n"));
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status = iScsiPortGetCompatibleIds(
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LogicalUnit->DriverObject,
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&(pdoExtension->InquiryData),
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&unicodeIdString);
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multiStrings = TRUE;
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break;
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}
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default: {
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status = Irp->IoStatus.Status;
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Irp->IoStatus.Information = 0;
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break;
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}
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}
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Irp->IoStatus.Status = status;
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if(NT_SUCCESS(status)) {
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PWCHAR idString;
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DebugPrint((3, "Query ID successful\n"));
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//
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// fix up all invalid characters
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//
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idString = unicodeIdString.Buffer;
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while (*idString) {
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if ((*idString <= L' ') ||
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(*idString > (WCHAR)0x7F) ||
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(*idString == L',')) {
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*idString = L'_';
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}
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idString++;
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if ((*idString == L'\0') && multiStrings) {
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idString++;
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}
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}
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Irp->IoStatus.Information = (ULONG_PTR) unicodeIdString.Buffer;
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} else {
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DebugPrint((1, "Query ID failed\n"));
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Irp->IoStatus.Information = (ULONG_PTR) NULL;
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}
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iSpReleaseRemoveLock(LogicalUnit, Irp);
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return status;
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break;
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}
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case IRP_MN_QUERY_RESOURCES:
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case IRP_MN_QUERY_RESOURCE_REQUIREMENTS: {
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status = STATUS_SUCCESS;
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Irp->IoStatus.Information = (ULONG_PTR) NULL;
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break;
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}
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case IRP_MN_REMOVE_DEVICE: {
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PISCSI_FDO_EXTENSION fdoExtension;
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ULONG inx;
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BOOLEAN foundPDO = FALSE;
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iSpReleaseRemoveLock(LogicalUnit, Irp);
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//
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// Remove this PDO from FDO's PDO List
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//
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fdoExtension = pdoExtension->ParentFDOExtension;
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inx = 0;
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while (inx < (fdoExtension->NumberOfTargets)) {
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if (fdoExtension->PDOList[inx] == LogicalUnit) {
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foundPDO = TRUE;
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break;
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}
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inx++;
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}
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|
|
if (foundPDO == TRUE) {
|
|||
|
|
DebugPrint((1, "Found the PDO : 0x%x\n",
|
|||
|
|
LogicalUnit));
|
|||
|
|
|
|||
|
|
pdoExtension->IsClaimed = FALSE;
|
|||
|
|
|
|||
|
|
commonExtension->IsRemoved = REMOVE_PENDING;
|
|||
|
|
|
|||
|
|
if ((pdoExtension->IsMissing == TRUE) &&
|
|||
|
|
(pdoExtension->IsEnumerated == FALSE)) {
|
|||
|
|
|
|||
|
|
(fdoExtension->NumberOfTargets)--;
|
|||
|
|
|
|||
|
|
DebugPrint((0, "Will remove the PDO\n"));
|
|||
|
|
|
|||
|
|
commonExtension->IsRemoved = REMOVE_COMPLETE;
|
|||
|
|
|
|||
|
|
pdoExtension->PathId = 0xff;
|
|||
|
|
pdoExtension->TargetId = 0xff;
|
|||
|
|
pdoExtension->Lun = 0xff;
|
|||
|
|
|
|||
|
|
DebugPrint((0, "Query remove received for the PDO\n"));
|
|||
|
|
|
|||
|
|
iSpStopNetwork(LogicalUnit);
|
|||
|
|
|
|||
|
|
IoDeleteDevice(LogicalUnit);
|
|||
|
|
|
|||
|
|
} else {
|
|||
|
|
DebugPrint((0, "Will not delete the PDO\n"));
|
|||
|
|
commonExtension->IsRemoved = NO_REMOVE;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
status = STATUS_SUCCESS;
|
|||
|
|
} else {
|
|||
|
|
DebugPrint((0, "Did not find the PDO\n"));
|
|||
|
|
status = STATUS_NO_SUCH_DEVICE;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Irp->IoStatus.Status = status;
|
|||
|
|
Irp->IoStatus.Information = (ULONG_PTR) NULL;
|
|||
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|||
|
|
|
|||
|
|
return status;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
case IRP_MN_QUERY_REMOVE_DEVICE:
|
|||
|
|
case IRP_MN_QUERY_STOP_DEVICE: {
|
|||
|
|
|
|||
|
|
DebugPrint((0, "Query remove or query stop received\n"));
|
|||
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|||
|
|
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
default: {
|
|||
|
|
DebugPrint((1,
|
|||
|
|
"Not handling PDO MN Code - 0x%x. Status - 0x%08x\n",
|
|||
|
|
(irpStack->MinorFunction),
|
|||
|
|
(Irp->IoStatus.Status)));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
iSpReleaseRemoveLock(LogicalUnit, Irp);
|
|||
|
|
|
|||
|
|
status = Irp->IoStatus.Status;
|
|||
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|||
|
|
|
|||
|
|
return status;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
NTSTATUS
|
|||
|
|
iScsiPortPdoDispatch(
|
|||
|
|
IN PDEVICE_OBJECT LogicalUnit,
|
|||
|
|
IN PIRP Irp
|
|||
|
|
)
|
|||
|
|
{
|
|||
|
|
PISCSI_PDO_EXTENSION pdoExtension = LogicalUnit->DeviceExtension;
|
|||
|
|
PCOMMON_EXTENSION commonExtension = LogicalUnit->DeviceExtension;
|
|||
|
|
PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
|
|||
|
|
PSCSI_REQUEST_BLOCK srb = irpStack->Parameters.Scsi.Srb;
|
|||
|
|
NTSTATUS status;
|
|||
|
|
ULONG isRemoved;
|
|||
|
|
BOOLEAN sendCommandToServer = FALSE;
|
|||
|
|
|
|||
|
|
DebugPrint((3, "PdoDispatch - SRB Function : 0x%x\n",
|
|||
|
|
srb->Function));
|
|||
|
|
|
|||
|
|
isRemoved = iSpAcquireRemoveLock(LogicalUnit, Irp);
|
|||
|
|
if (isRemoved &&
|
|||
|
|
!IS_CLEANUP_REQUEST(irpStack) &&
|
|||
|
|
(srb->Function != SRB_FUNCTION_CLAIM_DEVICE)) {
|
|||
|
|
|
|||
|
|
iSpReleaseRemoveLock(LogicalUnit, Irp);
|
|||
|
|
Irp->IoStatus.Status = STATUS_DEVICE_DOES_NOT_EXIST;
|
|||
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|||
|
|
return STATUS_DEVICE_DOES_NOT_EXIST;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
switch(srb->Function) {
|
|||
|
|
|
|||
|
|
case SRB_FUNCTION_ABORT_COMMAND: {
|
|||
|
|
DebugPrint((1, "Not handling abort command\n"));
|
|||
|
|
status = STATUS_NOT_SUPPORTED;
|
|||
|
|
break;
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
case SRB_FUNCTION_CLAIM_DEVICE:
|
|||
|
|
case SRB_FUNCTION_REMOVE_DEVICE: {
|
|||
|
|
|
|||
|
|
status = iSpClaimLogicalUnit(
|
|||
|
|
pdoExtension->CommonExtension.LowerDeviceObject->DeviceExtension,
|
|||
|
|
pdoExtension,
|
|||
|
|
Irp);
|
|||
|
|
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
case SRB_FUNCTION_RELEASE_QUEUE:
|
|||
|
|
case SRB_FUNCTION_FLUSH_QUEUE:
|
|||
|
|
case SRB_FUNCTION_SHUTDOWN:
|
|||
|
|
case SRB_FUNCTION_FLUSH:
|
|||
|
|
case SRB_FUNCTION_LOCK_QUEUE:
|
|||
|
|
case SRB_FUNCTION_UNLOCK_QUEUE:
|
|||
|
|
case SRB_FUNCTION_IO_CONTROL:
|
|||
|
|
case SRB_FUNCTION_RESET_BUS:
|
|||
|
|
case SRB_FUNCTION_WMI: {
|
|||
|
|
|
|||
|
|
//
|
|||
|
|
// We won't handle these functions on the client
|
|||
|
|
// side for the timebeing.
|
|||
|
|
//
|
|||
|
|
status = STATUS_SUCCESS;
|
|||
|
|
srb->SrbStatus = SRB_STATUS_SUCCESS;
|
|||
|
|
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
case SRB_FUNCTION_EXECUTE_SCSI: {
|
|||
|
|
|
|||
|
|
//
|
|||
|
|
// Mark Irp status pending.
|
|||
|
|
//
|
|||
|
|
|
|||
|
|
IoMarkIrpPending(Irp);
|
|||
|
|
|
|||
|
|
sendCommandToServer = TRUE;
|
|||
|
|
|
|||
|
|
status = STATUS_PENDING;
|
|||
|
|
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
default: {
|
|||
|
|
//
|
|||
|
|
// Unsupported SRB function.
|
|||
|
|
//
|
|||
|
|
DebugPrint((0,
|
|||
|
|
"PdoDispatch: Unsupported function, SRB %p\n",
|
|||
|
|
srb));
|
|||
|
|
|
|||
|
|
srb->SrbStatus = SRB_STATUS_INVALID_REQUEST;
|
|||
|
|
status = STATUS_INVALID_DEVICE_REQUEST;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (sendCommandToServer == FALSE) {
|
|||
|
|
DebugPrint((1, "Not sending the command to the server\n"));
|
|||
|
|
iSpReleaseRemoveLock(LogicalUnit, Irp);
|
|||
|
|
Irp->IoStatus.Status = status;
|
|||
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|||
|
|
return status;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
DebugPrint((3, "Will send the command to the server\n"));
|
|||
|
|
|
|||
|
|
status = iSpSendScsiCommand(LogicalUnit, Irp);
|
|||
|
|
|
|||
|
|
if (NT_SUCCESS(status)) {
|
|||
|
|
DebugPrint((3, "Command successfully sent to the server.\n"));
|
|||
|
|
status = STATUS_PENDING;
|
|||
|
|
} else {
|
|||
|
|
//
|
|||
|
|
// In case of error, the lock will be released and the irp will
|
|||
|
|
// be completed in iSpSendScsiCommand routine.
|
|||
|
|
//
|
|||
|
|
DebugPrint((1, "Failed to send the command. Status : %x\n",
|
|||
|
|
status));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return status;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
NTSTATUS
|
|||
|
|
iScsiPortPdoCreateClose(
|
|||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|||
|
|
IN PIRP Irp
|
|||
|
|
)
|
|||
|
|
{
|
|||
|
|
ULONG isRemoved;
|
|||
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|||
|
|
|
|||
|
|
isRemoved = iSpAcquireRemoveLock(DeviceObject, Irp);
|
|||
|
|
|
|||
|
|
if(IoGetCurrentIrpStackLocation(Irp)->MajorFunction == IRP_MJ_CREATE) {
|
|||
|
|
|
|||
|
|
if(isRemoved) {
|
|||
|
|
status = STATUS_DEVICE_DOES_NOT_EXIST;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Irp->IoStatus.Status = status;
|
|||
|
|
|
|||
|
|
iSpReleaseRemoveLock(DeviceObject, Irp);
|
|||
|
|
|
|||
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|||
|
|
|
|||
|
|
return status;
|
|||
|
|
}
|
|||
|
|
|