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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 "ntddk.h" |
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#include "ndis.h" |
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#include "b2ether.h" |
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NTSTATUS PacketWrite( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp ) |
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{ |
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POPEN_INSTANCE open; |
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PNDIS_PACKET pPacket; |
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NDIS_STATUS Status; |
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// DebugPrint(("SendAdapter\n")); |
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open = DeviceObject->DeviceExtension; |
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IoIncrement(open); |
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if(!open->Bound) { |
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Irp->IoStatus.Status = STATUS_UNSUCCESSFUL; |
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IoCompleteRequest (Irp, IO_NO_INCREMENT); |
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IoDecrement(open); |
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return STATUS_UNSUCCESSFUL; |
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} |
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NdisAllocatePacket( &Status, &pPacket, open->PacketPool ); |
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if (Status != NDIS_STATUS_SUCCESS) { |
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Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES; |
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IoCompleteRequest (Irp, IO_NO_INCREMENT); |
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IoDecrement(open); |
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return STATUS_INSUFFICIENT_RESOURCES; |
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} |
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RESERVED(pPacket)->Irp=Irp; |
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NdisChainBufferAtFront(pPacket,Irp->MdlAddress); |
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// Important: Since we have marked the IRP pending, we must return |
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// STATUS_PENDING even we happen to complete the IRP synchronously. |
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IoMarkIrpPending(Irp); |
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NdisSend( &Status, open->AdapterHandle, pPacket ); |
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if (Status != NDIS_STATUS_PENDING) { |
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PacketSendComplete( open, pPacket, Status ); |
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} |
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return STATUS_PENDING; |
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} |
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VOID |
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PacketSendComplete( |
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IN NDIS_HANDLE ProtocolBindingContext, |
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IN PNDIS_PACKET pPacket, |
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IN NDIS_STATUS Status |
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) |
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{ |
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PIRP irp; |
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PIO_STACK_LOCATION irpSp; |
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// DebugPrint(("Packet: SendComplete :%x\n", Status)); |
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irp = RESERVED(pPacket)->Irp; |
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irpSp = IoGetCurrentIrpStackLocation(irp); |
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NdisFreePacket(pPacket); |
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if(Status == NDIS_STATUS_SUCCESS) { |
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irp->IoStatus.Information = irpSp->Parameters.Write.Length; |
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irp->IoStatus.Status = STATUS_SUCCESS; |
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} else { |
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irp->IoStatus.Information = 0; |
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irp->IoStatus.Status = STATUS_UNSUCCESSFUL; |
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} |
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IoCompleteRequest(irp, IO_NO_INCREMENT); |
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IoDecrement((POPEN_INSTANCE)ProtocolBindingContext); |
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} |
