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1944 lines
50 KiB
1944 lines
50 KiB
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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ndisbind.c
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Abstract:
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NDIS protocol entry points and utility routines to handle binding
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and unbinding from adapters.
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Environment:
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Kernel mode only.
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Revision History:
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arvindm 4/5/2000 Created
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--*/
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#include "precomp.h"
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#define __FILENUMBER 'DNIB'
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NDIS_OID ndisuioSupportedSetOids[] =
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{
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OID_802_11_INFRASTRUCTURE_MODE,
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OID_802_11_AUTHENTICATION_MODE,
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OID_802_11_RELOAD_DEFAULTS,
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OID_802_11_REMOVE_WEP,
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OID_802_11_WEP_STATUS,
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OID_802_11_BSSID_LIST_SCAN,
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OID_802_11_ADD_WEP,
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OID_802_11_SSID,
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OID_802_11_BSSID,
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OID_802_11_BSSID_LIST,
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OID_802_11_DISASSOCIATE,
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OID_802_11_STATISTICS, // Later used by power management
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OID_802_11_POWER_MODE, // Later used by power management
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OID_802_11_NETWORK_TYPE_IN_USE,
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OID_802_11_RSSI,
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OID_802_11_SUPPORTED_RATES,
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OID_802_11_CONFIGURATION,
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OID_802_3_MULTICAST_LIST
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};
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VOID
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NdisuioBindAdapter(
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OUT PNDIS_STATUS pStatus,
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IN NDIS_HANDLE BindContext,
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IN PNDIS_STRING pDeviceName,
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IN PVOID SystemSpecific1,
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IN PVOID SystemSpecific2
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)
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/*++
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Routine Description:
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Protocol Bind Handler entry point called when NDIS wants us
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to bind to an adapter. We go ahead and set up a binding.
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An OPEN_CONTEXT structure is allocated to keep state about
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this binding.
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Arguments:
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pStatus - place to return bind status
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BindContext - handle to use with NdisCompleteBindAdapter
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DeviceName - adapter to bind to
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SystemSpecific1 - used to access protocol-specific registry
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key for this binding
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SystemSpecific2 - unused
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Return Value:
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None
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--*/
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{
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PNDISUIO_OPEN_CONTEXT pOpenContext;
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NDIS_STATUS Status, ConfigStatus;
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NDIS_HANDLE ConfigHandle;
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do
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{
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//
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// Allocate our context for this open.
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//
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NUIO_ALLOC_MEM(pOpenContext, sizeof(NDISUIO_OPEN_CONTEXT));
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if (pOpenContext == NULL)
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{
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Status = NDIS_STATUS_RESOURCES;
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break;
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}
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//
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// Initialize it.
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//
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NUIO_ZERO_MEM(pOpenContext, sizeof(NDISUIO_OPEN_CONTEXT));
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NUIO_SET_SIGNATURE(pOpenContext, oc);
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NUIO_INIT_LOCK(&pOpenContext->Lock);
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NUIO_INIT_LIST_HEAD(&pOpenContext->PendedReads);
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NUIO_INIT_LIST_HEAD(&pOpenContext->PendedWrites);
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NUIO_INIT_LIST_HEAD(&pOpenContext->RecvPktQueue);
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NUIO_INIT_EVENT(&pOpenContext->PoweredUpEvent);
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//
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// Start off by assuming that the device below is powered up.
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//
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NUIO_SIGNAL_EVENT(&pOpenContext->PoweredUpEvent);
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//
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// Determine the platform we are running on.
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//
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pOpenContext->bRunningOnWin9x = TRUE;
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NdisOpenProtocolConfiguration(
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&ConfigStatus,
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&ConfigHandle,
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(PNDIS_STRING)SystemSpecific1);
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if (ConfigStatus == NDIS_STATUS_SUCCESS)
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{
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PNDIS_CONFIGURATION_PARAMETER pParameter;
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NDIS_STRING VersionKey = NDIS_STRING_CONST("Environment");
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NdisReadConfiguration(
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&ConfigStatus,
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&pParameter,
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ConfigHandle,
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&VersionKey,
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NdisParameterInteger);
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if ((ConfigStatus == NDIS_STATUS_SUCCESS) &&
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((pParameter->ParameterType == NdisParameterInteger) ||
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(pParameter->ParameterType == NdisParameterHexInteger)))
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{
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pOpenContext->bRunningOnWin9x =
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(pParameter->ParameterData.IntegerData == NdisEnvironmentWindows);
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}
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NdisCloseConfiguration(ConfigHandle);
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}
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NUIO_REF_OPEN(pOpenContext); // Bind
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//
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// Add it to the global list.
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//
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NUIO_ACQUIRE_LOCK(&Globals.GlobalLock);
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NUIO_INSERT_TAIL_LIST(&Globals.OpenList,
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&pOpenContext->Link);
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NUIO_RELEASE_LOCK(&Globals.GlobalLock);
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//
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// Set up the NDIS binding.
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//
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Status = ndisuioCreateBinding(
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pOpenContext,
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(PUCHAR)pDeviceName->Buffer,
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pDeviceName->Length);
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if (Status != NDIS_STATUS_SUCCESS)
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{
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break;
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}
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}
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while (FALSE);
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*pStatus = Status;
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return;
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}
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VOID
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NdisuioOpenAdapterComplete(
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IN NDIS_HANDLE ProtocolBindingContext,
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IN NDIS_STATUS Status,
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IN NDIS_STATUS OpenErrorCode
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)
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/*++
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Routine Description:
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Completion routine called by NDIS if our call to NdisOpenAdapter
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pends. Wake up the thread that called NdisOpenAdapter.
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Arguments:
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ProtocolBindingContext - pointer to open context structure
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Status - status of the open
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OpenErrorCode - if unsuccessful, additional information
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Return Value:
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None
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--*/
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{
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PNDISUIO_OPEN_CONTEXT pOpenContext;
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pOpenContext = (PNDISUIO_OPEN_CONTEXT)ProtocolBindingContext;
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NUIO_STRUCT_ASSERT(pOpenContext, oc);
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pOpenContext->BindStatus = Status;
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NUIO_SIGNAL_EVENT(&pOpenContext->BindEvent);
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}
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VOID
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NdisuioUnbindAdapter(
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OUT PNDIS_STATUS pStatus,
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IN NDIS_HANDLE ProtocolBindingContext,
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IN NDIS_HANDLE UnbindContext
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)
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/*++
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Routine Description:
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NDIS calls this when it wants us to close the binding to an adapter.
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Arguments:
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pStatus - place to return status of Unbind
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ProtocolBindingContext - pointer to open context structure
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UnbindContext - to use in NdisCompleteUnbindAdapter if we return pending
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Return Value:
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None
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--*/
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{
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PNDISUIO_OPEN_CONTEXT pOpenContext;
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pOpenContext = (PNDISUIO_OPEN_CONTEXT)ProtocolBindingContext;
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NUIO_STRUCT_ASSERT(pOpenContext, oc);
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//
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// Mark this open as having seen an Unbind.
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//
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NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
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NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_UNBIND_FLAGS, NUIOO_UNBIND_RECEIVED);
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//
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// In case we had threads blocked for the device below to be powered
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// up, wake them up.
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//
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NUIO_SIGNAL_EVENT(&pOpenContext->PoweredUpEvent);
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NUIO_RELEASE_LOCK(&pOpenContext->Lock);
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ndisuioShutdownBinding(pOpenContext);
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*pStatus = NDIS_STATUS_SUCCESS;
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return;
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}
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VOID
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NdisuioCloseAdapterComplete(
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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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Routine Description:
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Called by NDIS to complete a pended call to NdisCloseAdapter.
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We wake up the thread waiting for this completion.
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Arguments:
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ProtocolBindingContext - pointer to open context structure
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Status - Completion status of NdisCloseAdapter
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Return Value:
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None
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--*/
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{
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PNDISUIO_OPEN_CONTEXT pOpenContext;
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pOpenContext = (PNDISUIO_OPEN_CONTEXT)ProtocolBindingContext;
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NUIO_STRUCT_ASSERT(pOpenContext, oc);
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pOpenContext->BindStatus = Status;
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NUIO_SIGNAL_EVENT(&pOpenContext->BindEvent);
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}
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NDIS_STATUS
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NdisuioPnPEventHandler(
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IN NDIS_HANDLE ProtocolBindingContext,
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IN PNET_PNP_EVENT pNetPnPEvent
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)
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/*++
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Routine Description:
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Called by NDIS to notify us of a PNP event. The most significant
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one for us is power state change.
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Arguments:
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ProtocolBindingContext - pointer to open context structure
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this is NULL for global reconfig events.
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pNetPnPEvent - pointer to the PNP event
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Return Value:
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Our processing status for the PNP event.
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--*/
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{
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PNDISUIO_OPEN_CONTEXT pOpenContext;
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NDIS_STATUS Status;
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pOpenContext = (PNDISUIO_OPEN_CONTEXT)ProtocolBindingContext;
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switch (pNetPnPEvent->NetEvent)
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{
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case NetEventSetPower:
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NUIO_STRUCT_ASSERT(pOpenContext, oc);
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pOpenContext->PowerState = *(PNET_DEVICE_POWER_STATE)pNetPnPEvent->Buffer;
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if (pOpenContext->PowerState > NetDeviceStateD0)
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{
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//
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// The device below is transitioning to a low power state.
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// Block any threads attempting to query the device while
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// in this state.
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//
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NUIO_INIT_EVENT(&pOpenContext->PoweredUpEvent);
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//
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// Wait for any I/O in progress to complete.
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//
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ndisuioWaitForPendingIO(pOpenContext, FALSE);
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//
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// Return any receives that we had queued up.
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//
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ndisuioFlushReceiveQueue(pOpenContext);
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DEBUGP(DL_INFO, ("PnPEvent: Open %p, SetPower to %d\n",
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pOpenContext, pOpenContext->PowerState));
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}
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else
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{
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//
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// The device below is powered up.
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//
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DEBUGP(DL_INFO, ("PnPEvent: Open %p, SetPower ON: %d\n",
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pOpenContext, pOpenContext->PowerState));
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NUIO_SIGNAL_EVENT(&pOpenContext->PoweredUpEvent);
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}
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Status = NDIS_STATUS_SUCCESS;
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break;
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case NetEventQueryPower:
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Status = NDIS_STATUS_SUCCESS;
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break;
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case NetEventBindsComplete:
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NUIO_SIGNAL_EVENT(&Globals.BindsComplete);
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Status = NDIS_STATUS_SUCCESS;
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break;
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case NetEventQueryRemoveDevice:
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case NetEventCancelRemoveDevice:
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case NetEventReconfigure:
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case NetEventBindList:
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case NetEventPnPCapabilities:
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Status = NDIS_STATUS_SUCCESS;
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break;
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default:
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Status = NDIS_STATUS_NOT_SUPPORTED;
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break;
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}
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DEBUGP(DL_INFO, ("PnPEvent: Open %p, Event %d, Status %x\n",
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pOpenContext, pNetPnPEvent->NetEvent, Status));
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return (Status);
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}
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VOID
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NdisuioProtocolUnloadHandler(
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VOID
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)
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/*++
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Routine Description:
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NDIS calls this on a usermode request to uninstall us.
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Arguments:
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None
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Return Value:
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None
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--*/
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{
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ndisuioDoProtocolUnload();
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}
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NDIS_STATUS
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ndisuioCreateBinding(
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IN PNDISUIO_OPEN_CONTEXT pOpenContext,
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IN PUCHAR pBindingInfo,
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IN ULONG BindingInfoLength
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)
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/*++
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Routine Description:
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Utility function to create an NDIS binding to the indicated device,
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if no such binding exists.
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Here is where we also allocate additional resources (e.g. packet pool)
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for the binding.
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Things to take care of:
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1. Is another thread doing this (or has finished binding) already?
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2. Is the binding being closed at this time?
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3. NDIS calls our Unbind handler while we are doing this.
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These precautions are not needed if this routine is only called from
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the context of our BindAdapter handler, but they are here in case
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we initiate binding from elsewhere (e.g. on processing a user command).
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NOTE: this function blocks and finishes synchronously.
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Arguments:
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pOpenContext - pointer to open context block
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pBindingInfo - pointer to unicode device name string
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BindingInfoLength - length in bytes of the above.
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Return Value:
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NDIS_STATUS_SUCCESS if a binding was successfully set up.
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NDIS_STATUS_XXX error code on any failure.
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--*/
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{
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NDIS_STATUS Status;
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NDIS_STATUS OpenErrorCode;
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UNICODE_STRING DeviceName;
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PLIST_ENTRY pEnt;
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NDIS_MEDIUM MediumArray[1] = {NdisMedium802_3};
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UINT SelectedMediumIndex;
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PNDISUIO_OPEN_CONTEXT pTmpOpenContext;
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BOOLEAN fDoNotDisturb = FALSE;
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BOOLEAN fOpenComplete = FALSE;
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ULONG BytesProcessed;
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ULONG GenericUlong = 0;
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DEBUGP(DL_LOUD, ("CreateBinding: open %p/%x, device [%ws]\n",
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pOpenContext, pOpenContext->Flags, pBindingInfo));
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Status = NDIS_STATUS_SUCCESS;
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do
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{
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//
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// Check if we already have a binding to this device.
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//
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pTmpOpenContext = ndisuioLookupDevice(pBindingInfo, BindingInfoLength);
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if (pTmpOpenContext != NULL)
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{
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DEBUGP(DL_WARN,
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("CreateBinding: Binding to device %ws already exists on open %p\n",
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pTmpOpenContext->DeviceName.Buffer, pTmpOpenContext));
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NUIO_DEREF_OPEN(pTmpOpenContext); // temp ref added by Lookup
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Status = NDIS_STATUS_FAILURE;
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break;
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}
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NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
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//
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// Check if this open context is already bound/binding/closing.
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//
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if (!NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_IDLE) ||
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NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_UNBIND_FLAGS, NUIOO_UNBIND_RECEIVED))
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{
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NUIO_RELEASE_LOCK(&pOpenContext->Lock);
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Status = NDIS_STATUS_NOT_ACCEPTED;
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//
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// Make sure we don't abort this binding on failure cleanup.
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//
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fDoNotDisturb = TRUE;
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break;
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}
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NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_OPENING);
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NUIO_RELEASE_LOCK(&pOpenContext->Lock);
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//
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// Copy in the device name. Add room for a NULL terminator.
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//
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NUIO_ALLOC_MEM(pOpenContext->DeviceName.Buffer, BindingInfoLength + sizeof(WCHAR));
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if (pOpenContext->DeviceName.Buffer == NULL)
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{
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DEBUGP(DL_WARN, ("CreateBinding: failed to alloc device name buf (%d bytes)\n",
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BindingInfoLength + sizeof(WCHAR)));
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Status = NDIS_STATUS_RESOURCES;
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break;
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}
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NUIO_COPY_MEM(pOpenContext->DeviceName.Buffer, pBindingInfo, BindingInfoLength);
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*(PWCHAR)((PUCHAR)pOpenContext->DeviceName.Buffer + BindingInfoLength) = L'\0';
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NdisInitUnicodeString(&pOpenContext->DeviceName, pOpenContext->DeviceName.Buffer);
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//
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// Allocate packet pools.
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//
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NdisAllocatePacketPoolEx(
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&Status,
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&pOpenContext->SendPacketPool,
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MIN_SEND_PACKET_POOL_SIZE,
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MAX_SEND_PACKET_POOL_SIZE - MIN_SEND_PACKET_POOL_SIZE,
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sizeof(NUIO_SEND_PACKET_RSVD));
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if (Status != NDIS_STATUS_SUCCESS)
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{
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DEBUGP(DL_WARN, ("CreateBinding: failed to alloc"
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" send packet pool: %x\n", Status));
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break;
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}
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NdisSetPacketPoolProtocolId(pOpenContext->SendPacketPool, 0x4);
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NdisAllocatePacketPoolEx(
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&Status,
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&pOpenContext->RecvPacketPool,
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MIN_RECV_PACKET_POOL_SIZE,
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MAX_RECV_PACKET_POOL_SIZE - MIN_RECV_PACKET_POOL_SIZE,
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sizeof(NUIO_RECV_PACKET_RSVD));
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if (Status != NDIS_STATUS_SUCCESS)
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{
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DEBUGP(DL_WARN, ("CreateBinding: failed to alloc"
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" recv packet pool: %x\n", Status));
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break;
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}
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//
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// Buffer pool for receives.
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//
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NdisAllocateBufferPool(
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&Status,
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&pOpenContext->RecvBufferPool,
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MAX_RECV_PACKET_POOL_SIZE);
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if (Status != NDIS_STATUS_SUCCESS)
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{
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DEBUGP(DL_WARN, ("CreateBinding: failed to alloc"
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" recv buffer pool: %x\n", Status));
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break;
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}
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//
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// If we are running on Win9X, allocate a buffer pool for sends
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// as well, since we can't simply cast MDLs to NDIS_BUFFERs.
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//
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if (pOpenContext->bRunningOnWin9x)
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{
|
|
NdisAllocateBufferPool(
|
|
&Status,
|
|
&pOpenContext->SendBufferPool,
|
|
MAX_SEND_PACKET_POOL_SIZE);
|
|
|
|
if (Status != NDIS_STATUS_SUCCESS)
|
|
{
|
|
DEBUGP(DL_WARN, ("CreateBinding: failed to alloc"
|
|
" send buffer pool: %x\n", Status));
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Open the adapter.
|
|
//
|
|
NUIO_INIT_EVENT(&pOpenContext->BindEvent);
|
|
|
|
NdisOpenAdapter(
|
|
&Status,
|
|
&OpenErrorCode,
|
|
&pOpenContext->BindingHandle,
|
|
&SelectedMediumIndex,
|
|
&MediumArray[0],
|
|
sizeof(MediumArray) / sizeof(NDIS_MEDIUM),
|
|
Globals.NdisProtocolHandle,
|
|
(NDIS_HANDLE)pOpenContext,
|
|
&pOpenContext->DeviceName,
|
|
0,
|
|
NULL);
|
|
|
|
if (Status == NDIS_STATUS_PENDING)
|
|
{
|
|
NUIO_WAIT_EVENT(&pOpenContext->BindEvent, 0);
|
|
Status = pOpenContext->BindStatus;
|
|
}
|
|
|
|
if (Status != NDIS_STATUS_SUCCESS)
|
|
{
|
|
DEBUGP(DL_WARN, ("CreateBinding: NdisOpenAdapter (%ws) failed: %x\n",
|
|
pOpenContext->DeviceName.Buffer, Status));
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Note down the fact that we have successfully bound.
|
|
// We don't update the state on the open just yet - this
|
|
// is to prevent other threads from shutting down the binding.
|
|
//
|
|
fOpenComplete = TRUE;
|
|
|
|
//
|
|
// Get the friendly name for the adapter. It is not fatal for this
|
|
// to fail.
|
|
//
|
|
(VOID)NdisQueryAdapterInstanceName(
|
|
&pOpenContext->DeviceDescr,
|
|
pOpenContext->BindingHandle
|
|
);
|
|
|
|
//
|
|
// Get Current address
|
|
//
|
|
Status = ndisuioDoRequest(
|
|
pOpenContext,
|
|
NdisRequestQueryInformation,
|
|
OID_802_3_CURRENT_ADDRESS,
|
|
&pOpenContext->CurrentAddress[0],
|
|
NUIO_MAC_ADDR_LEN,
|
|
&BytesProcessed
|
|
);
|
|
|
|
if (Status != NDIS_STATUS_SUCCESS)
|
|
{
|
|
DEBUGP(DL_WARN, ("CreateBinding: qry current address failed: %x\n",
|
|
Status));
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Get MAC options.
|
|
//
|
|
Status = ndisuioDoRequest(
|
|
pOpenContext,
|
|
NdisRequestQueryInformation,
|
|
OID_GEN_MAC_OPTIONS,
|
|
&pOpenContext->MacOptions,
|
|
sizeof(pOpenContext->MacOptions),
|
|
&BytesProcessed
|
|
);
|
|
|
|
if (Status != NDIS_STATUS_SUCCESS)
|
|
{
|
|
DEBUGP(DL_WARN, ("CreateBinding: qry MAC options failed: %x\n",
|
|
Status));
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Get the max frame size.
|
|
//
|
|
Status = ndisuioDoRequest(
|
|
pOpenContext,
|
|
NdisRequestQueryInformation,
|
|
OID_GEN_MAXIMUM_FRAME_SIZE,
|
|
&pOpenContext->MaxFrameSize,
|
|
sizeof(pOpenContext->MaxFrameSize),
|
|
&BytesProcessed
|
|
);
|
|
|
|
if (Status != NDIS_STATUS_SUCCESS)
|
|
{
|
|
DEBUGP(DL_WARN, ("CreateBinding: qry max frame failed: %x\n",
|
|
Status));
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Get the media connect status.
|
|
//
|
|
Status = ndisuioDoRequest(
|
|
pOpenContext,
|
|
NdisRequestQueryInformation,
|
|
OID_GEN_MEDIA_CONNECT_STATUS,
|
|
&GenericUlong,
|
|
sizeof(GenericUlong),
|
|
&BytesProcessed
|
|
);
|
|
|
|
if (Status != NDIS_STATUS_SUCCESS)
|
|
{
|
|
DEBUGP(DL_WARN, ("CreateBinding: qry media connect status failed: %x\n",
|
|
Status));
|
|
break;
|
|
}
|
|
|
|
if (GenericUlong == NdisMediaStateConnected)
|
|
{
|
|
NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_MEDIA_FLAGS, NUIOO_MEDIA_CONNECTED);
|
|
}
|
|
else
|
|
{
|
|
NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_MEDIA_FLAGS, NUIOO_MEDIA_DISCONNECTED);
|
|
}
|
|
|
|
|
|
//
|
|
// Assume that the device is powered up.
|
|
//
|
|
pOpenContext->PowerState = NetDeviceStateD0;
|
|
|
|
//
|
|
// Mark this open. Also check if we received an Unbind while
|
|
// we were setting this up.
|
|
//
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_ACTIVE);
|
|
|
|
//
|
|
// Did an unbind happen in the meantime?
|
|
//
|
|
if (NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_UNBIND_FLAGS, NUIOO_UNBIND_RECEIVED))
|
|
{
|
|
Status = NDIS_STATUS_FAILURE;
|
|
}
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
break;
|
|
|
|
}
|
|
while (FALSE);
|
|
|
|
if ((Status != NDIS_STATUS_SUCCESS) && !fDoNotDisturb)
|
|
{
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
//
|
|
// Check if we had actually finished opening the adapter.
|
|
//
|
|
if (fOpenComplete)
|
|
{
|
|
NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_ACTIVE);
|
|
}
|
|
else if (NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_OPENING))
|
|
{
|
|
NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_FAILED);
|
|
}
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
ndisuioShutdownBinding(pOpenContext);
|
|
}
|
|
|
|
DEBUGP(DL_INFO, ("CreateBinding: OpenContext %p, Status %x\n",
|
|
pOpenContext, Status));
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
|
|
VOID
|
|
ndisuioShutdownBinding(
|
|
IN PNDISUIO_OPEN_CONTEXT pOpenContext
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Utility function to shut down the NDIS binding, if one exists, on
|
|
the specified open. This is written to be called from:
|
|
|
|
ndisuioCreateBinding - on failure
|
|
NdisuioUnbindAdapter
|
|
|
|
We handle the case where a binding is in the process of being set up.
|
|
This precaution is not needed if this routine is only called from
|
|
the context of our UnbindAdapter handler, but they are here in case
|
|
we initiate unbinding from elsewhere (e.g. on processing a user command).
|
|
|
|
NOTE: this blocks and finishes synchronously.
|
|
|
|
Arguments:
|
|
|
|
pOpenContext - pointer to open context block
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
NDIS_STATUS Status;
|
|
BOOLEAN DoCloseBinding = FALSE;
|
|
|
|
do
|
|
{
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
if (NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_OPENING))
|
|
{
|
|
//
|
|
// We are still in the process of setting up this binding.
|
|
//
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
break;
|
|
}
|
|
|
|
if (NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_ACTIVE))
|
|
{
|
|
NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_CLOSING);
|
|
DoCloseBinding = TRUE;
|
|
}
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
if (DoCloseBinding)
|
|
{
|
|
//
|
|
// Wait for any pending sends or requests on
|
|
// the binding to complete.
|
|
//
|
|
ndisuioWaitForPendingIO(pOpenContext, TRUE);
|
|
|
|
//
|
|
// Discard any queued receives.
|
|
//
|
|
ndisuioFlushReceiveQueue(pOpenContext);
|
|
|
|
//
|
|
// Close the binding now.
|
|
//
|
|
NUIO_INIT_EVENT(&pOpenContext->BindEvent);
|
|
|
|
DEBUGP(DL_INFO, ("ShutdownBinding: Closing OpenContext %p,"
|
|
" BindingHandle %p\n",
|
|
pOpenContext, pOpenContext->BindingHandle));
|
|
|
|
NdisCloseAdapter(&Status, pOpenContext->BindingHandle);
|
|
|
|
if (Status == NDIS_STATUS_PENDING)
|
|
{
|
|
NUIO_WAIT_EVENT(&pOpenContext->BindEvent, 0);
|
|
Status = pOpenContext->BindStatus;
|
|
}
|
|
|
|
NUIO_ASSERT(Status == NDIS_STATUS_SUCCESS);
|
|
|
|
pOpenContext->BindingHandle = NULL;
|
|
}
|
|
|
|
if (DoCloseBinding)
|
|
{
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_IDLE);
|
|
|
|
NUIO_SET_FLAGS(pOpenContext->Flags, NUIOO_UNBIND_FLAGS, 0);
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
}
|
|
|
|
//
|
|
// Remove it from the global list.
|
|
//
|
|
NUIO_ACQUIRE_LOCK(&Globals.GlobalLock);
|
|
|
|
NUIO_REMOVE_ENTRY_LIST(&pOpenContext->Link);
|
|
|
|
NUIO_RELEASE_LOCK(&Globals.GlobalLock);
|
|
|
|
//
|
|
// Free any other resources allocated for this bind.
|
|
//
|
|
ndisuioFreeBindResources(pOpenContext);
|
|
|
|
NUIO_DEREF_OPEN(pOpenContext); // Shutdown binding
|
|
|
|
break;
|
|
}
|
|
while (FALSE);
|
|
}
|
|
|
|
|
|
VOID
|
|
ndisuioFreeBindResources(
|
|
IN PNDISUIO_OPEN_CONTEXT pOpenContext
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Free any resources set up for an NDIS binding.
|
|
|
|
Arguments:
|
|
|
|
pOpenContext - pointer to open context block
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
if (pOpenContext->SendPacketPool != NULL)
|
|
{
|
|
NdisFreePacketPool(pOpenContext->SendPacketPool);
|
|
pOpenContext->SendPacketPool = NULL;
|
|
}
|
|
|
|
if (pOpenContext->RecvPacketPool != NULL)
|
|
{
|
|
NdisFreePacketPool(pOpenContext->RecvPacketPool);
|
|
pOpenContext->RecvPacketPool = NULL;
|
|
}
|
|
|
|
if (pOpenContext->RecvBufferPool != NULL)
|
|
{
|
|
NdisFreeBufferPool(pOpenContext->RecvBufferPool);
|
|
pOpenContext->RecvBufferPool = NULL;
|
|
}
|
|
|
|
if (pOpenContext->SendBufferPool != NULL)
|
|
{
|
|
NdisFreeBufferPool(pOpenContext->SendBufferPool);
|
|
pOpenContext->SendBufferPool = NULL;
|
|
}
|
|
|
|
if (pOpenContext->DeviceName.Buffer != NULL)
|
|
{
|
|
NUIO_FREE_MEM(pOpenContext->DeviceName.Buffer);
|
|
pOpenContext->DeviceName.Buffer = NULL;
|
|
pOpenContext->DeviceName.Length =
|
|
pOpenContext->DeviceName.MaximumLength = 0;
|
|
}
|
|
|
|
if (pOpenContext->DeviceDescr.Buffer != NULL)
|
|
{
|
|
//
|
|
// this would have been allocated by NdisQueryAdpaterInstanceName.
|
|
//
|
|
NdisFreeMemory(pOpenContext->DeviceDescr.Buffer, 0, 0);
|
|
pOpenContext->DeviceDescr.Buffer = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
VOID
|
|
ndisuioWaitForPendingIO(
|
|
IN PNDISUIO_OPEN_CONTEXT pOpenContext,
|
|
IN BOOLEAN DoCancelReads
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Utility function to wait for all outstanding I/O to complete
|
|
on an open context. It is assumed that the open context
|
|
won't go away while we are in this routine.
|
|
|
|
Arguments:
|
|
|
|
pOpenContext - pointer to open context structure
|
|
DoCancelReads - do we wait for pending reads to go away (and cancel them)?
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
NDIS_STATUS Status;
|
|
ULONG LoopCount;
|
|
ULONG PendingCount;
|
|
|
|
#ifdef NDIS51
|
|
//
|
|
// Wait for any pending sends or requests on the binding to complete.
|
|
//
|
|
for (LoopCount = 0; LoopCount < 60; LoopCount++)
|
|
{
|
|
Status = NdisQueryPendingIOCount(
|
|
pOpenContext->BindingHandle,
|
|
&PendingCount);
|
|
|
|
if ((Status != NDIS_STATUS_SUCCESS) ||
|
|
(PendingCount == 0))
|
|
{
|
|
break;
|
|
}
|
|
|
|
DEBUGP(DL_INFO, ("WaitForPendingIO: Open %p, %d pending I/O at NDIS\n",
|
|
pOpenContext, PendingCount));
|
|
|
|
NUIO_SLEEP(2);
|
|
}
|
|
|
|
NUIO_ASSERT(LoopCount < 60);
|
|
|
|
#endif // NDIS51
|
|
|
|
//
|
|
// Make sure any threads trying to send have finished.
|
|
//
|
|
for (LoopCount = 0; LoopCount < 60; LoopCount++)
|
|
{
|
|
if (pOpenContext->PendedSendCount == 0)
|
|
{
|
|
break;
|
|
}
|
|
|
|
DEBUGP(DL_WARN, ("WaitForPendingIO: Open %p, %d pended sends\n",
|
|
pOpenContext, pOpenContext->PendedSendCount));
|
|
|
|
NUIO_SLEEP(1);
|
|
}
|
|
|
|
NUIO_ASSERT(LoopCount < 60);
|
|
|
|
if (DoCancelReads)
|
|
{
|
|
//
|
|
// Wait for any pended reads to complete/cancel.
|
|
//
|
|
while (pOpenContext->PendedReadCount != 0)
|
|
{
|
|
DEBUGP(DL_INFO, ("WaitForPendingIO: Open %p, %d pended reads\n",
|
|
pOpenContext, pOpenContext->PendedReadCount));
|
|
|
|
//
|
|
// Cancel any pending reads.
|
|
//
|
|
ndisuioCancelPendingReads(pOpenContext);
|
|
|
|
NUIO_SLEEP(1);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
VOID
|
|
ndisuioDoProtocolUnload(
|
|
VOID
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Utility routine to handle unload from the NDIS protocol side.
|
|
|
|
Arguments:
|
|
|
|
None
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
NDIS_HANDLE ProtocolHandle;
|
|
NDIS_STATUS Status;
|
|
|
|
DEBUGP(DL_INFO, ("ProtocolUnload: ProtocolHandle %lx\n",
|
|
Globals.NdisProtocolHandle));
|
|
|
|
if (Globals.NdisProtocolHandle != NULL)
|
|
{
|
|
ProtocolHandle = Globals.NdisProtocolHandle;
|
|
Globals.NdisProtocolHandle = NULL;
|
|
|
|
NdisDeregisterProtocol(
|
|
&Status,
|
|
ProtocolHandle
|
|
);
|
|
|
|
}
|
|
}
|
|
|
|
|
|
NDIS_STATUS
|
|
ndisuioDoRequest(
|
|
IN PNDISUIO_OPEN_CONTEXT pOpenContext,
|
|
IN NDIS_REQUEST_TYPE RequestType,
|
|
IN NDIS_OID Oid,
|
|
IN PVOID InformationBuffer,
|
|
IN UINT InformationBufferLength,
|
|
OUT PUINT pBytesProcessed
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Utility routine that forms and sends an NDIS_REQUEST to the
|
|
miniport, waits for it to complete, and returns status
|
|
to the caller.
|
|
|
|
NOTE: this assumes that the calling routine ensures validity
|
|
of the binding handle until this returns.
|
|
|
|
Arguments:
|
|
|
|
pOpenContext - pointer to our open context
|
|
RequestType - NdisRequest[Set|Query]Information
|
|
Oid - the object being set/queried
|
|
InformationBuffer - data for the request
|
|
InformationBufferLength - length of the above
|
|
pBytesProcessed - place to return bytes read/written
|
|
|
|
Return Value:
|
|
|
|
Status of the set/query request
|
|
|
|
--*/
|
|
{
|
|
NDISUIO_REQUEST ReqContext;
|
|
PNDIS_REQUEST pNdisRequest = &ReqContext.Request;
|
|
NDIS_STATUS Status;
|
|
|
|
NUIO_INIT_EVENT(&ReqContext.ReqEvent);
|
|
|
|
pNdisRequest->RequestType = RequestType;
|
|
|
|
switch (RequestType)
|
|
{
|
|
case NdisRequestQueryInformation:
|
|
pNdisRequest->DATA.QUERY_INFORMATION.Oid = Oid;
|
|
pNdisRequest->DATA.QUERY_INFORMATION.InformationBuffer =
|
|
InformationBuffer;
|
|
pNdisRequest->DATA.QUERY_INFORMATION.InformationBufferLength =
|
|
InformationBufferLength;
|
|
break;
|
|
|
|
case NdisRequestSetInformation:
|
|
pNdisRequest->DATA.SET_INFORMATION.Oid = Oid;
|
|
pNdisRequest->DATA.SET_INFORMATION.InformationBuffer =
|
|
InformationBuffer;
|
|
pNdisRequest->DATA.SET_INFORMATION.InformationBufferLength =
|
|
InformationBufferLength;
|
|
break;
|
|
|
|
default:
|
|
NUIO_ASSERT(FALSE);
|
|
break;
|
|
}
|
|
|
|
NdisRequest(&Status,
|
|
pOpenContext->BindingHandle,
|
|
pNdisRequest);
|
|
|
|
|
|
if (Status == NDIS_STATUS_PENDING)
|
|
{
|
|
NUIO_WAIT_EVENT(&ReqContext.ReqEvent, 0);
|
|
Status = ReqContext.Status;
|
|
}
|
|
|
|
if (Status == NDIS_STATUS_SUCCESS)
|
|
{
|
|
*pBytesProcessed = (RequestType == NdisRequestQueryInformation)?
|
|
pNdisRequest->DATA.QUERY_INFORMATION.BytesWritten:
|
|
pNdisRequest->DATA.SET_INFORMATION.BytesRead;
|
|
//
|
|
// The driver below should set the correct value to BytesWritten
|
|
// or BytesRead. But now, we just truncate the value to InformationBufferLength if
|
|
// BytesWritten or BytesRead is greater than InformationBufferLength
|
|
//
|
|
if (*pBytesProcessed > InformationBufferLength)
|
|
{
|
|
*pBytesProcessed = InformationBufferLength;
|
|
}
|
|
}
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
NDIS_STATUS
|
|
ndisuioValidateOpenAndDoRequest(
|
|
IN PNDISUIO_OPEN_CONTEXT pOpenContext,
|
|
IN NDIS_REQUEST_TYPE RequestType,
|
|
IN NDIS_OID Oid,
|
|
IN PVOID InformationBuffer,
|
|
IN UINT InformationBufferLength,
|
|
OUT PUINT pBytesProcessed,
|
|
IN BOOLEAN bWaitForPowerOn
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Utility routine to prevalidate and reference an open context
|
|
before calling ndisuioDoRequest. This routine makes sure
|
|
we have a valid binding.
|
|
|
|
Arguments:
|
|
|
|
pOpenContext - pointer to our open context
|
|
RequestType - NdisRequest[Set|Query]Information
|
|
Oid - the object being set/queried
|
|
InformationBuffer - data for the request
|
|
InformationBufferLength - length of the above
|
|
pBytesProcessed - place to return bytes read/written
|
|
bWaitForPowerOn - Wait for the device to be powered on if it isn't already.
|
|
|
|
Return Value:
|
|
|
|
Status of the set/query request
|
|
|
|
--*/
|
|
{
|
|
NDIS_STATUS Status;
|
|
|
|
do
|
|
{
|
|
if (pOpenContext == NULL)
|
|
{
|
|
DEBUGP(DL_WARN, ("ValidateOpenAndDoRequest: request on unassociated file object!\n"));
|
|
Status = NDIS_STATUS_INVALID_DATA;
|
|
break;
|
|
}
|
|
|
|
NUIO_STRUCT_ASSERT(pOpenContext, oc);
|
|
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
//
|
|
// Proceed only if we have a binding.
|
|
//
|
|
if (!NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_ACTIVE))
|
|
{
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
Status = NDIS_STATUS_INVALID_DATA;
|
|
break;
|
|
}
|
|
|
|
NUIO_ASSERT(pOpenContext->BindingHandle != NULL);
|
|
|
|
//
|
|
// Make sure that the binding does not go away until we
|
|
// are finished with the request.
|
|
//
|
|
NdisInterlockedIncrement(&pOpenContext->PendedSendCount);
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
if (bWaitForPowerOn)
|
|
{
|
|
//
|
|
// Wait for the device below to be powered up.
|
|
// We don't wait indefinitely here - this is to avoid
|
|
// a PROCESS_HAS_LOCKED_PAGES bugcheck that could happen
|
|
// if the calling process terminates, and this IRP doesn't
|
|
// complete within a reasonable time. An alternative would
|
|
// be to explicitly handle cancellation of this IRP.
|
|
//
|
|
NUIO_WAIT_EVENT(&pOpenContext->PoweredUpEvent, 4500);
|
|
}
|
|
|
|
Status = ndisuioDoRequest(
|
|
pOpenContext,
|
|
RequestType,
|
|
Oid,
|
|
InformationBuffer,
|
|
InformationBufferLength,
|
|
pBytesProcessed);
|
|
|
|
//
|
|
// Let go of the binding.
|
|
//
|
|
NdisInterlockedDecrement(&pOpenContext->PendedSendCount);
|
|
break;
|
|
}
|
|
while (FALSE);
|
|
|
|
DEBUGP(DL_LOUD, ("ValidateOpenAndDoReq: Open %p/%x, OID %x, Status %x\n",
|
|
pOpenContext, pOpenContext->Flags, Oid, Status));
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
VOID
|
|
NdisuioResetComplete(
|
|
IN NDIS_HANDLE ProtocolBindingContext,
|
|
IN NDIS_STATUS Status
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
NDIS entry point indicating that a protocol initiated reset
|
|
has completed. Since we never call NdisReset(), this should
|
|
never be called.
|
|
|
|
Arguments:
|
|
|
|
ProtocolBindingContext - pointer to open context
|
|
Status - status of reset completion
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
ASSERT(FALSE);
|
|
return;
|
|
}
|
|
|
|
|
|
VOID
|
|
NdisuioRequestComplete(
|
|
IN NDIS_HANDLE ProtocolBindingContext,
|
|
IN PNDIS_REQUEST pNdisRequest,
|
|
IN NDIS_STATUS Status
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
NDIS entry point indicating completion of a pended NDIS_REQUEST.
|
|
|
|
Arguments:
|
|
|
|
ProtocolBindingContext - pointer to open context
|
|
pNdisRequest - pointer to NDIS request
|
|
Status - status of reset completion
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
PNDISUIO_OPEN_CONTEXT pOpenContext;
|
|
PNDISUIO_REQUEST pReqContext;
|
|
|
|
pOpenContext = (PNDISUIO_OPEN_CONTEXT)ProtocolBindingContext;
|
|
NUIO_STRUCT_ASSERT(pOpenContext, oc);
|
|
|
|
//
|
|
// Get at the request context.
|
|
//
|
|
pReqContext = CONTAINING_RECORD(pNdisRequest, NDISUIO_REQUEST, Request);
|
|
|
|
//
|
|
// Save away the completion status.
|
|
//
|
|
pReqContext->Status = Status;
|
|
|
|
//
|
|
// Wake up the thread blocked for this request to complete.
|
|
//
|
|
NUIO_SIGNAL_EVENT(&pReqContext->ReqEvent);
|
|
}
|
|
|
|
|
|
VOID
|
|
NdisuioStatus(
|
|
IN NDIS_HANDLE ProtocolBindingContext,
|
|
IN NDIS_STATUS GeneralStatus,
|
|
IN PVOID StatusBuffer,
|
|
IN UINT StatusBufferSize
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Protocol entry point called by NDIS to indicate a change
|
|
in status at the miniport.
|
|
|
|
We make note of reset and media connect status indications.
|
|
|
|
Arguments:
|
|
|
|
ProtocolBindingContext - pointer to open context
|
|
GeneralStatus - status code
|
|
StatusBuffer - status-specific additional information
|
|
StatusBufferSize - size of the above
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
PNDISUIO_OPEN_CONTEXT pOpenContext;
|
|
|
|
pOpenContext = (PNDISUIO_OPEN_CONTEXT)ProtocolBindingContext;
|
|
NUIO_STRUCT_ASSERT(pOpenContext, oc);
|
|
|
|
DEBUGP(DL_INFO, ("Status: Open %p, Status %x\n",
|
|
pOpenContext, GeneralStatus));
|
|
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
do
|
|
{
|
|
if (pOpenContext->PowerState != NetDeviceStateD0)
|
|
{
|
|
//
|
|
// Ignore status indications if the device is in
|
|
// a low power state.
|
|
//
|
|
DEBUGP(DL_INFO, ("Status: Open %p in power state %d,"
|
|
" Status %x ignored\n", pOpenContext,
|
|
pOpenContext->PowerState, GeneralStatus));
|
|
break;
|
|
}
|
|
|
|
switch(GeneralStatus)
|
|
{
|
|
case NDIS_STATUS_RESET_START:
|
|
|
|
NUIO_ASSERT(!NUIO_TEST_FLAGS(pOpenContext->Flags,
|
|
NUIOO_RESET_FLAGS,
|
|
NUIOO_RESET_IN_PROGRESS));
|
|
|
|
NUIO_SET_FLAGS(pOpenContext->Flags,
|
|
NUIOO_RESET_FLAGS,
|
|
NUIOO_RESET_IN_PROGRESS);
|
|
|
|
break;
|
|
|
|
case NDIS_STATUS_RESET_END:
|
|
|
|
NUIO_ASSERT(NUIO_TEST_FLAGS(pOpenContext->Flags,
|
|
NUIOO_RESET_FLAGS,
|
|
NUIOO_RESET_IN_PROGRESS));
|
|
|
|
NUIO_SET_FLAGS(pOpenContext->Flags,
|
|
NUIOO_RESET_FLAGS,
|
|
NUIOO_NOT_RESETTING);
|
|
|
|
break;
|
|
|
|
case NDIS_STATUS_MEDIA_CONNECT:
|
|
|
|
NUIO_SET_FLAGS(pOpenContext->Flags,
|
|
NUIOO_MEDIA_FLAGS,
|
|
NUIOO_MEDIA_CONNECTED);
|
|
|
|
break;
|
|
|
|
case NDIS_STATUS_MEDIA_DISCONNECT:
|
|
|
|
NUIO_SET_FLAGS(pOpenContext->Flags,
|
|
NUIOO_MEDIA_FLAGS,
|
|
NUIOO_MEDIA_DISCONNECTED);
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
while (FALSE);
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
}
|
|
|
|
VOID
|
|
NdisuioStatusComplete(
|
|
IN NDIS_HANDLE ProtocolBindingContext
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Protocol entry point called by NDIS. We ignore this.
|
|
|
|
Arguments:
|
|
|
|
ProtocolBindingContext - pointer to open context
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
PNDISUIO_OPEN_CONTEXT pOpenContext;
|
|
|
|
pOpenContext = (PNDISUIO_OPEN_CONTEXT)ProtocolBindingContext;
|
|
NUIO_STRUCT_ASSERT(pOpenContext, oc);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
NDIS_STATUS
|
|
ndisuioQueryBinding(
|
|
IN PUCHAR pBuffer,
|
|
IN ULONG InputLength,
|
|
IN ULONG OutputLength,
|
|
OUT PULONG pBytesReturned
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Return information about the specified binding.
|
|
|
|
Arguments:
|
|
|
|
pBuffer - pointer to NDISUIO_QUERY_BINDING
|
|
InputLength - input buffer size
|
|
OutputLength - output buffer size
|
|
pBytesReturned - place to return copied byte count.
|
|
|
|
Return Value:
|
|
|
|
NDIS_STATUS_SUCCESS if successful, failure code otherwise.
|
|
|
|
--*/
|
|
{
|
|
PNDISUIO_QUERY_BINDING pQueryBinding;
|
|
PNDISUIO_OPEN_CONTEXT pOpenContext;
|
|
PLIST_ENTRY pEnt;
|
|
ULONG Remaining;
|
|
ULONG BindingIndex;
|
|
NDIS_STATUS Status;
|
|
|
|
do
|
|
{
|
|
if (InputLength < sizeof(NDISUIO_QUERY_BINDING))
|
|
{
|
|
Status = NDIS_STATUS_RESOURCES;
|
|
break;
|
|
}
|
|
|
|
if (OutputLength < sizeof(NDISUIO_QUERY_BINDING))
|
|
{
|
|
Status = NDIS_STATUS_BUFFER_OVERFLOW;
|
|
break;
|
|
}
|
|
|
|
Remaining = OutputLength - sizeof(NDISUIO_QUERY_BINDING);
|
|
|
|
pQueryBinding = (PNDISUIO_QUERY_BINDING)pBuffer;
|
|
BindingIndex = pQueryBinding->BindingIndex;
|
|
|
|
Status = NDIS_STATUS_ADAPTER_NOT_FOUND;
|
|
|
|
pOpenContext = NULL;
|
|
|
|
NUIO_ACQUIRE_LOCK(&Globals.GlobalLock);
|
|
|
|
for (pEnt = Globals.OpenList.Flink;
|
|
pEnt != &Globals.OpenList;
|
|
pEnt = pEnt->Flink)
|
|
{
|
|
pOpenContext = CONTAINING_RECORD(pEnt, NDISUIO_OPEN_CONTEXT, Link);
|
|
NUIO_STRUCT_ASSERT(pOpenContext, oc);
|
|
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
//
|
|
// Skip if not bound.
|
|
//
|
|
if (!NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_ACTIVE))
|
|
{
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
continue;
|
|
}
|
|
|
|
if (BindingIndex == 0)
|
|
{
|
|
//
|
|
// Got the binding we are looking for. Copy the device
|
|
// name and description strings to the output buffer.
|
|
//
|
|
DEBUGP(DL_INFO,
|
|
("QueryBinding: found open %p\n", pOpenContext));
|
|
|
|
pQueryBinding->DeviceNameLength = pOpenContext->DeviceName.Length + sizeof(WCHAR);
|
|
pQueryBinding->DeviceDescrLength = pOpenContext->DeviceDescr.Length + sizeof(WCHAR);
|
|
if (Remaining < pQueryBinding->DeviceNameLength +
|
|
pQueryBinding->DeviceDescrLength)
|
|
{
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
Status = NDIS_STATUS_BUFFER_OVERFLOW;
|
|
break;
|
|
}
|
|
|
|
NUIO_ZERO_MEM((PUCHAR)pBuffer + sizeof(NDISUIO_QUERY_BINDING),
|
|
pQueryBinding->DeviceNameLength +
|
|
pQueryBinding->DeviceDescrLength);
|
|
|
|
pQueryBinding->DeviceNameOffset = sizeof(NDISUIO_QUERY_BINDING);
|
|
NUIO_COPY_MEM((PUCHAR)pBuffer + pQueryBinding->DeviceNameOffset,
|
|
pOpenContext->DeviceName.Buffer,
|
|
pOpenContext->DeviceName.Length);
|
|
|
|
pQueryBinding->DeviceDescrOffset = pQueryBinding->DeviceNameOffset +
|
|
pQueryBinding->DeviceNameLength;
|
|
NUIO_COPY_MEM((PUCHAR)pBuffer + pQueryBinding->DeviceDescrOffset,
|
|
pOpenContext->DeviceDescr.Buffer,
|
|
pOpenContext->DeviceDescr.Length);
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
*pBytesReturned = pQueryBinding->DeviceDescrOffset + pQueryBinding->DeviceDescrLength;
|
|
Status = NDIS_STATUS_SUCCESS;
|
|
break;
|
|
}
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
BindingIndex--;
|
|
}
|
|
|
|
NUIO_RELEASE_LOCK(&Globals.GlobalLock);
|
|
|
|
}
|
|
while (FALSE);
|
|
|
|
return (Status);
|
|
}
|
|
|
|
PNDISUIO_OPEN_CONTEXT
|
|
ndisuioLookupDevice(
|
|
IN PUCHAR pBindingInfo,
|
|
IN ULONG BindingInfoLength
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Search our global list for an open context structure that
|
|
has a binding to the specified device, and return a pointer
|
|
to it.
|
|
|
|
NOTE: we reference the open that we return.
|
|
|
|
Arguments:
|
|
|
|
pBindingInfo - pointer to unicode device name string
|
|
BindingInfoLength - length in bytes of the above.
|
|
|
|
Return Value:
|
|
|
|
Pointer to the matching open context if found, else NULL
|
|
|
|
--*/
|
|
{
|
|
PNDISUIO_OPEN_CONTEXT pOpenContext;
|
|
PLIST_ENTRY pEnt;
|
|
|
|
pOpenContext = NULL;
|
|
|
|
NUIO_ACQUIRE_LOCK(&Globals.GlobalLock);
|
|
|
|
for (pEnt = Globals.OpenList.Flink;
|
|
pEnt != &Globals.OpenList;
|
|
pEnt = pEnt->Flink)
|
|
{
|
|
pOpenContext = CONTAINING_RECORD(pEnt, NDISUIO_OPEN_CONTEXT, Link);
|
|
NUIO_STRUCT_ASSERT(pOpenContext, oc);
|
|
|
|
//
|
|
// Check if this has the name we are looking for.
|
|
//
|
|
if ((pOpenContext->DeviceName.Length == BindingInfoLength) &&
|
|
NUIO_MEM_CMP(pOpenContext->DeviceName.Buffer, pBindingInfo, BindingInfoLength))
|
|
{
|
|
NUIO_REF_OPEN(pOpenContext); // ref added by LookupDevice
|
|
break;
|
|
}
|
|
|
|
pOpenContext = NULL;
|
|
}
|
|
|
|
NUIO_RELEASE_LOCK(&Globals.GlobalLock);
|
|
|
|
return (pOpenContext);
|
|
}
|
|
|
|
|
|
NDIS_STATUS
|
|
ndisuioQueryOidValue(
|
|
IN PNDISUIO_OPEN_CONTEXT pOpenContext,
|
|
OUT PVOID pDataBuffer,
|
|
IN ULONG BufferLength,
|
|
OUT PULONG pBytesWritten
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Query an arbitrary OID value from the miniport.
|
|
|
|
Arguments:
|
|
|
|
pOpenContext - pointer to open context representing our binding to the miniport
|
|
pDataBuffer - place to store the returned value
|
|
BufferLength - length of the above
|
|
pBytesWritten - place to return length returned
|
|
|
|
Return Value:
|
|
|
|
NDIS_STATUS_SUCCESS if we successfully queried the OID.
|
|
NDIS_STATUS_XXX error code otherwise.
|
|
|
|
--*/
|
|
{
|
|
NDIS_STATUS Status;
|
|
PNDISUIO_QUERY_OID pQuery;
|
|
NDIS_OID Oid;
|
|
|
|
Oid = 0;
|
|
|
|
do
|
|
{
|
|
if (BufferLength < sizeof(NDISUIO_QUERY_OID))
|
|
{
|
|
Status = NDIS_STATUS_BUFFER_TOO_SHORT;
|
|
break;
|
|
}
|
|
|
|
pQuery = (PNDISUIO_QUERY_OID)pDataBuffer;
|
|
Oid = pQuery->Oid;
|
|
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
if (!NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_ACTIVE))
|
|
{
|
|
DEBUGP(DL_WARN,
|
|
("QueryOid: Open %p/%x is in invalid state\n",
|
|
pOpenContext, pOpenContext->Flags));
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
Status = NDIS_STATUS_FAILURE;
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Make sure the binding doesn't go away.
|
|
//
|
|
NdisInterlockedIncrement(&pOpenContext->PendedSendCount);
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
Status = ndisuioDoRequest(
|
|
pOpenContext,
|
|
NdisRequestQueryInformation,
|
|
Oid,
|
|
&pQuery->Data[0],
|
|
BufferLength - FIELD_OFFSET(NDISUIO_QUERY_OID, Data),
|
|
pBytesWritten);
|
|
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
NdisInterlockedDecrement(&pOpenContext->PendedSendCount);
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
if (Status == NDIS_STATUS_SUCCESS)
|
|
{
|
|
*pBytesWritten += FIELD_OFFSET(NDISUIO_QUERY_OID, Data);
|
|
}
|
|
|
|
}
|
|
while (FALSE);
|
|
|
|
DEBUGP(DL_LOUD, ("QueryOid: Open %p/%x, OID %x, Status %x\n",
|
|
pOpenContext, pOpenContext->Flags, Oid, Status));
|
|
|
|
return (Status);
|
|
|
|
}
|
|
|
|
NDIS_STATUS
|
|
ndisuioSetOidValue(
|
|
IN PNDISUIO_OPEN_CONTEXT pOpenContext,
|
|
OUT PVOID pDataBuffer,
|
|
IN ULONG BufferLength
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Set an arbitrary OID value to the miniport.
|
|
|
|
Arguments:
|
|
|
|
pOpenContext - pointer to open context representing our binding to the miniport
|
|
pDataBuffer - buffer that contains the value to be set
|
|
BufferLength - length of the above
|
|
|
|
Return Value:
|
|
|
|
NDIS_STATUS_SUCCESS if we successfully set the OID
|
|
NDIS_STATUS_XXX error code otherwise.
|
|
|
|
--*/
|
|
{
|
|
NDIS_STATUS Status;
|
|
PNDISUIO_SET_OID pSet;
|
|
NDIS_OID Oid;
|
|
ULONG BytesWritten;
|
|
|
|
Oid = 0;
|
|
|
|
do
|
|
{
|
|
if (BufferLength < sizeof(NDISUIO_SET_OID))
|
|
{
|
|
Status = NDIS_STATUS_BUFFER_TOO_SHORT;
|
|
break;
|
|
}
|
|
|
|
pSet = (PNDISUIO_SET_OID)pDataBuffer;
|
|
Oid = pSet->Oid;
|
|
|
|
//
|
|
// We should check the OID is settable by the user mode apps
|
|
//
|
|
if (!ndisuioValidOid(Oid))
|
|
{
|
|
DEBUGP(DL_WARN, ("SetOid: Oid %x cannot be set\n", Oid));
|
|
|
|
Status = NDIS_STATUS_INVALID_DATA;
|
|
break;
|
|
}
|
|
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
if (!NUIO_TEST_FLAGS(pOpenContext->Flags, NUIOO_BIND_FLAGS, NUIOO_BIND_ACTIVE))
|
|
{
|
|
DEBUGP(DL_WARN,
|
|
("SetOid: Open %p/%x is in invalid state\n",
|
|
pOpenContext, pOpenContext->Flags));
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
Status = NDIS_STATUS_FAILURE;
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Make sure the binding doesn't go away.
|
|
//
|
|
NdisInterlockedIncrement(&pOpenContext->PendedSendCount);
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
Status = ndisuioDoRequest(
|
|
pOpenContext,
|
|
NdisRequestSetInformation,
|
|
Oid,
|
|
&pSet->Data[0],
|
|
BufferLength - FIELD_OFFSET(NDISUIO_SET_OID, Data),
|
|
&BytesWritten);
|
|
|
|
NUIO_ACQUIRE_LOCK(&pOpenContext->Lock);
|
|
|
|
NdisInterlockedDecrement(&pOpenContext->PendedSendCount);
|
|
|
|
NUIO_RELEASE_LOCK(&pOpenContext->Lock);
|
|
|
|
}
|
|
while (FALSE);
|
|
|
|
DEBUGP(DL_LOUD, ("SetOid: Open %p/%x, OID %x, Status %x\n",
|
|
pOpenContext, pOpenContext->Flags, Oid, Status));
|
|
|
|
return (Status);
|
|
}
|
|
|
|
BOOLEAN
|
|
ndisuioValidOid(
|
|
IN NDIS_OID Oid
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Validate whether the given set OID is settable or not.
|
|
|
|
Arguments:
|
|
|
|
Oid - The OID which the user tries to set.
|
|
|
|
Return Value:
|
|
|
|
TRUE if the OID is allowed to set
|
|
FALSE otherwise.
|
|
|
|
--*/
|
|
{
|
|
UINT i;
|
|
UINT NumOids;
|
|
|
|
NumOids = sizeof(ndisuioSupportedSetOids) / sizeof(NDIS_OID);
|
|
|
|
for (i = 0; i < NumOids; i++)
|
|
{
|
|
if (ndisuioSupportedSetOids[i] == Oid)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (i < NumOids);
|
|
}
|
|
|
|
|