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asvitkine |
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/*
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* b2ether driver -- derived from DDK packet driver sample
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*
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* Basilisk II (C) 1997-1999 Christian Bauer
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*
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* Windows platform specific code copyright (C) Lauri Pesonen
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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//#include "stdarg.h"
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#include "ntddk.h"
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#include "ntiologc.h"
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#include "ndis.h"
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#include "b2ether.h"
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#undef DBG
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#define DBG 0
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#include "debug.h"
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static UINT Medium;
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static NDIS_MEDIUM MediumArray=NdisMedium802_3;
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NTSTATUS PacketOpen( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )
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/*
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This is the dispatch routine for create/open and close requests.
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These requests complete successfully.
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*/
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{
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PDEVICE_EXTENSION DeviceExtension;
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POPEN_INSTANCE Open;
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PIO_STACK_LOCATION IrpSp;
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NDIS_STATUS Status;
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NDIS_STATUS ErrorStatus;
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UINT i;
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IF_LOUD(DbgPrint("Packet: OpenAdapter\n");)
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DeviceExtension = DeviceObject->DeviceExtension;
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IrpSp = IoGetCurrentIrpStackLocation(Irp);
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Open = ExAllocatePool(NonPagedPool,sizeof(OPEN_INSTANCE));
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if (Open==NULL) {
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Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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RtlZeroMemory( Open, sizeof(OPEN_INSTANCE) );
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// Save or open here
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IrpSp->FileObject->FsContext = Open;
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Open->DeviceExtension = DeviceExtension;
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Open->OpenCloseIrp = Irp;
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// Allocate a packet pool for our xmit and receive packets
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NdisAllocatePacketPool(
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&Status,
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&Open->PacketPool,
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TRANSMIT_PACKETS,
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sizeof(PACKET_RESERVED));
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if (Status != NDIS_STATUS_SUCCESS) {
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IF_LOUD(DbgPrint("Packet: Failed to allocate packet pool\n");)
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ExFreePool(Open);
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Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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// list to hold irp's want to reset the adapter
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InitializeListHead(&Open->ResetIrpList);
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// Initialize list for holding pending read requests
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KeInitializeSpinLock(&Open->RcvQSpinLock);
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InitializeListHead(&Open->RcvList);
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// Initialize the request list
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KeInitializeSpinLock(&Open->RequestSpinLock);
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InitializeListHead(&Open->RequestList);
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// link up the request stored in our open block
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for ( i=0; i<MAX_REQUESTS; i++ ) {
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ExInterlockedInsertTailList(
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&Open->RequestList,
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&Open->Requests[i].ListElement,
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&Open->RequestSpinLock);
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}
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IoMarkIrpPending(Irp);
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Irp->IoStatus.Status = STATUS_PENDING;
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// Try to open the MAC
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NdisOpenAdapter(
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&Status,
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&ErrorStatus,
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&Open->AdapterHandle,
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&Medium,
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&MediumArray,
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1,
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DeviceExtension->NdisProtocolHandle,
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Open,
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&DeviceExtension->AdapterName,
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0,
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NULL);
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if (Status != NDIS_STATUS_PENDING) {
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PacketOpenAdapterComplete( Open, Status, NDIS_STATUS_SUCCESS );
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}
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return(STATUS_PENDING);
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}
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VOID PacketOpenAdapterComplete(
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IN NDIS_HANDLE ProtocolBindingContext,
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IN NDIS_STATUS Status,
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IN NDIS_STATUS OpenErrorStatus
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)
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{
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PIRP Irp;
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POPEN_INSTANCE Open;
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IF_LOUD(DbgPrint("Packet: OpenAdapterComplete\n");)
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Open = (POPEN_INSTANCE)ProtocolBindingContext;
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Irp = Open->OpenCloseIrp;
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if (Status != NDIS_STATUS_SUCCESS) {
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IF_LOUD(DbgPrint("Packet: OpenAdapterComplete-FAILURE\n");)
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NdisFreePacketPool(Open->PacketPool);
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ExFreePool(Open);
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}
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Irp->IoStatus.Status = Status;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return;
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}
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NTSTATUS PacketClose( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )
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{
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POPEN_INSTANCE Open;
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NDIS_STATUS Status;
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PIO_STACK_LOCATION IrpSp;
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IF_LOUD(DbgPrint("Packet: CloseAdapter\n");)
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IrpSp = IoGetCurrentIrpStackLocation(Irp);
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Open = IrpSp->FileObject->FsContext;
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Open->OpenCloseIrp =Irp;
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IoMarkIrpPending(Irp);
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Irp->IoStatus.Status = STATUS_PENDING;
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NdisCloseAdapter( &Status, Open->AdapterHandle );
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if (Status != NDIS_STATUS_PENDING) {
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PacketCloseAdapterComplete( Open, Status );
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}
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return(STATUS_PENDING);
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}
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VOID PacketCloseAdapterComplete(
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IN NDIS_HANDLE ProtocolBindingContext,
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IN NDIS_STATUS Status
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)
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{
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POPEN_INSTANCE Open;
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PIRP Irp;
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IF_LOUD(DbgPrint("Packet: CloseAdapterComplete\n");)
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Open = (POPEN_INSTANCE)ProtocolBindingContext;
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Irp = Open->OpenCloseIrp;
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NdisFreePacketPool(Open->PacketPool);
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ExFreePool(Open);
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Irp->IoStatus.Status = STATUS_SUCCESS;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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}
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NTSTATUS PacketCleanup(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP FlushIrp
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)
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{
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POPEN_INSTANCE Open;
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PIO_STACK_LOCATION IrpSp;
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PLIST_ENTRY PacketListEntry;
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PNDIS_PACKET pPacket;
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NDIS_STATUS Status;
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IF_LOUD(DbgPrint("Packet: Cleanup\n");)
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IrpSp = IoGetCurrentIrpStackLocation(FlushIrp);
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Open=IrpSp->FileObject->FsContext;
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IoMarkIrpPending(FlushIrp);
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FlushIrp->IoStatus.Status = STATUS_PENDING;
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//
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// The open instance of the device is about to close
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// We need to complete all pending Irp's
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// First we complete any pending read requests
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//
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while ((PacketListEntry=ExInterlockedRemoveHeadList(
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&Open->RcvList,
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&Open->RcvQSpinLock
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)) != NULL) {
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IF_LOUD(DbgPrint("Packet: CleanUp - Completeing read\n");)
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pPacket=CONTAINING_RECORD(PacketListEntry,NDIS_PACKET,ProtocolReserved);
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// complete normally
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PacketTransferDataComplete(
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Open,
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pPacket,
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NDIS_STATUS_SUCCESS,
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0
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);
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}
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// IoMarkIrpPending(FlushIrp);
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// FlushIrp->IoStatus.Status = STATUS_PENDING;
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// We now place the Irp on the Reset list
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ExInterlockedInsertTailList(
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&Open->ResetIrpList,
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&FlushIrp->Tail.Overlay.ListEntry,
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&Open->RequestSpinLock);
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// Now reset the adapter, the mac driver will complete any
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// pending requests we have made to it.
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NdisReset( &Status, Open->AdapterHandle );
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if (Status != NDIS_STATUS_PENDING) {
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IF_LOUD(DbgPrint("Packet: Cleanup - ResetComplte being called\n");)
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PacketResetComplete( Open, Status );
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}
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return(STATUS_PENDING);
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}
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VOID PacketResetComplete(
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IN NDIS_HANDLE ProtocolBindingContext,
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IN NDIS_STATUS Status
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)
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{
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POPEN_INSTANCE Open;
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PIRP Irp;
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PLIST_ENTRY ResetListEntry;
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IF_LOUD(DbgPrint("Packet: PacketResetComplte\n");)
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Open = (POPEN_INSTANCE)ProtocolBindingContext;
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// remove the reset IRP from the list
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ResetListEntry=ExInterlockedRemoveHeadList(
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&Open->ResetIrpList,
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&Open->RequestSpinLock
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);
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#if DBG
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if (ResetListEntry == NULL) {
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DbgBreakPoint();
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return;
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}
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#endif
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Irp = CONTAINING_RECORD(ResetListEntry,IRP,Tail.Overlay.ListEntry);
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Irp->IoStatus.Status = STATUS_SUCCESS;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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IF_LOUD(DbgPrint("Packet: PacketResetComplte exit\n");)
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}
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