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/*++
Copyright (c) 1989-1993 Microsoft Corporation
Module Name:
query.c
Abstract:
This module contains code which performs the following TDI services:
o TdiQueryInformation
Environment:
Kernel mode
Revision History:
--*/
#include "precomp.h"
#pragma hdrstop
//
// Useful macro to obtain the total length of an MDL chain.
//
#define IpxGetMdlChainLength(Mdl, Length) { \
PMDL _Mdl = (Mdl); \ *(Length) = 0; \ while (_Mdl) { \ *(Length) += MmGetMdlByteCount(_Mdl); \ _Mdl = _Mdl->Next; \ } \}
NTSTATUSIpxTdiQueryInformation( IN PDEVICE Device, IN PREQUEST Request )
/*++
Routine Description:
This routine performs the TdiQueryInformation request for the transport provider.
Arguments:
Request - the request for the operation.
Return Value:
NTSTATUS - status of operation.
--*/
{ NTSTATUS status; PTDI_REQUEST_KERNEL_QUERY_INFORMATION query; PADDRESS_FILE AddressFile; ULONG ElementSize, TransportAddressSize; PTRANSPORT_ADDRESS TransportAddress; TA_ADDRESS * CurAddress; PBINDING Binding; union { struct { ULONG ActivityCount; TA_IPX_ADDRESS IpxAddress; } AddressInfo; TDI_DATAGRAM_INFO DatagramInfo; TDI_ADDRESS_IPX IpxAddress; } TempBuffer; UINT i;
IPX_DEFINE_LOCK_HANDLE(LockHandle1)
//
// what type of status do we want?
//
query = (PTDI_REQUEST_KERNEL_QUERY_INFORMATION)REQUEST_PARAMETERS(Request);
switch (query->QueryType) {
case TDI_QUERY_ADDRESS_INFO:
//
// The caller wants the exact address value.
//
AddressFile = (PADDRESS_FILE)REQUEST_OPEN_CONTEXT(Request);
status = IpxVerifyAddressFile (AddressFile);
if (status == STATUS_SUCCESS) {
TempBuffer.AddressInfo.ActivityCount = 0;
IpxBuildTdiAddress( &TempBuffer.AddressInfo.IpxAddress, Device->SourceAddress.NetworkAddress, Device->SourceAddress.NodeAddress, AddressFile->Address->Socket);#ifdef SUNDOWN
status = TdiCopyBufferToMdl( &TempBuffer.AddressInfo, 0, sizeof(TempBuffer.AddressInfo), REQUEST_NDIS_BUFFER(Request), 0, (PULONG)&REQUEST_INFORMATION(Request));#else
status = TdiCopyBufferToMdl( &TempBuffer.AddressInfo, 0, sizeof(TempBuffer.AddressInfo), REQUEST_NDIS_BUFFER(Request), 0, &REQUEST_INFORMATION(Request));#endif
IpxDereferenceAddressFile (AddressFile, AFREF_VERIFY);
}
break;
case TDI_QUERY_PROVIDER_INFO:#ifdef SUNDOWN
status = TdiCopyBufferToMdl ( &(Device->Information), 0, sizeof (TDI_PROVIDER_INFO), REQUEST_NDIS_BUFFER(Request), 0, (PULONG)&REQUEST_INFORMATION(Request));#else
status = TdiCopyBufferToMdl ( &(Device->Information), 0, sizeof (TDI_PROVIDER_INFO), REQUEST_NDIS_BUFFER(Request), 0, &REQUEST_INFORMATION(Request));#endif
break;
case TDI_QUERY_PROVIDER_STATISTICS:#ifdef SUNDOWN
status = TdiCopyBufferToMdl ( &Device->Statistics, 0, FIELD_OFFSET (TDI_PROVIDER_STATISTICS, ResourceStats[0]), REQUEST_NDIS_BUFFER(Request), 0, (PULONG)&REQUEST_INFORMATION(Request));#else
status = TdiCopyBufferToMdl ( &Device->Statistics, 0, FIELD_OFFSET (TDI_PROVIDER_STATISTICS, ResourceStats[0]), REQUEST_NDIS_BUFFER(Request), 0, &REQUEST_INFORMATION(Request));#endif
break;
case TDI_QUERY_DATAGRAM_INFO:
TempBuffer.DatagramInfo.MaximumDatagramBytes = 0; TempBuffer.DatagramInfo.MaximumDatagramCount = 0;#ifdef SUNDOWN
status = TdiCopyBufferToMdl ( &TempBuffer.DatagramInfo, 0, sizeof(TempBuffer.DatagramInfo), REQUEST_NDIS_BUFFER(Request), 0, (PULONG)&REQUEST_INFORMATION(Request));#else
status = TdiCopyBufferToMdl ( &TempBuffer.DatagramInfo, 0, sizeof(TempBuffer.DatagramInfo), REQUEST_NDIS_BUFFER(Request), 0, &REQUEST_INFORMATION(Request));#endif
break;
case TDI_QUERY_DATA_LINK_ADDRESS: case TDI_QUERY_NETWORK_ADDRESS:
if (query->QueryType == TDI_QUERY_DATA_LINK_ADDRESS) { ElementSize = (2 * sizeof(USHORT)) + 6; } else { ElementSize = (2 * sizeof(USHORT)) + sizeof(TDI_ADDRESS_IPX); }
TransportAddress = IpxAllocateMemory(sizeof(int) + (ElementSize * MIN (Device->MaxBindings, Device->ValidBindings)), MEMORY_QUERY, "NetworkAddress");
if (TransportAddress == NULL) {
status = STATUS_INSUFFICIENT_RESOURCES;
} else {
TransportAddress->TAAddressCount = 0; TransportAddressSize = sizeof(int); CurAddress = (TA_ADDRESS *)TransportAddress->Address; IPX_GET_LOCK1(&Device->BindAccessLock, &LockHandle1); { ULONG Index = MIN (Device->MaxBindings, Device->ValidBindings);
for (i = FIRST_REAL_BINDING; i <= Index; i++) {
Binding = NIC_ID_TO_BINDING(Device, i); if ((Binding == NULL) || (!Binding->LineUp)) { continue; }
if (query->QueryType == TDI_QUERY_DATA_LINK_ADDRESS) { CurAddress->AddressLength = 6; #ifdef SUNDOWN
CurAddress->AddressType = (USHORT)Binding->Adapter->MacInfo.RealMediumType; #else
CurAddress->AddressType = Binding->Adapter->MacInfo.RealMediumType; #endif
RtlCopyMemory (CurAddress->Address, Binding->LocalAddress.NodeAddress, 6); } else { CurAddress->AddressLength = sizeof(TDI_ADDRESS_IPX); CurAddress->AddressType = TDI_ADDRESS_TYPE_IPX; RtlCopyMemory (CurAddress->Address, &Binding->LocalAddress, sizeof(TDI_ADDRESS_IPX)); } ++TransportAddress->TAAddressCount; TransportAddressSize += ElementSize; CurAddress = (TA_ADDRESS *)(((PUCHAR)CurAddress) + ElementSize);
} }
IPX_FREE_LOCK1(&Device->BindAccessLock, LockHandle1);
#ifdef SUNDOWN
status = TdiCopyBufferToMdl ( TransportAddress, 0, TransportAddressSize, REQUEST_NDIS_BUFFER(Request), 0, (PULONG)&REQUEST_INFORMATION(Request)); #else
status = TdiCopyBufferToMdl ( TransportAddress, 0, TransportAddressSize, REQUEST_NDIS_BUFFER(Request), 0, &REQUEST_INFORMATION(Request));#endif
CTEFreeMem (TransportAddress);
}
break;
default:
status = STATUS_INVALID_DEVICE_REQUEST; break; }
return status;
} /* IpxTdiQueryInformation */
NTSTATUSIpxTdiSetInformation( IN PDEVICE Device, IN PREQUEST Request )
/*++
Routine Description:
This routine performs the TdiSetInformation request for the transport provider.
Arguments:
Device - the device.
Request - the request for the operation.
Return Value:
NTSTATUS - status of operation.
--*/
{ UNREFERENCED_PARAMETER (Device); UNREFERENCED_PARAMETER (Request);
return STATUS_NOT_IMPLEMENTED;
} /* IpxTdiSetInformation */
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