Reorder source code
Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman
parent
bbbe72ce84
commit
ced1bcdd52
434
wintun.c
434
wintun.c
@ -35,6 +35,18 @@
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#define TUN_EXCH_MIN_BUFFER_SIZE_WRITE (sizeof(TUN_PACKET)) // Minimum size of write exchange buffer
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#define TUN_QUEUE_MAX_NBLS 1000
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#define TUN_MEMORY_TAG 'wtun'
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#define TUN_CSQ_INSERT_HEAD ((PVOID)TRUE)
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#define TUN_CSQ_INSERT_TAIL ((PVOID)FALSE)
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#if REG_DWORD == REG_DWORD_BIG_ENDIAN
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#define TUN_HTONS(x) ((USHORT)(x))
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#define TUN_HTONL(x) ((ULONG)(x))
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#elif REG_DWORD == REG_DWORD_LITTLE_ENDIAN
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#define TUN_HTONS(x) (((USHORT)(x) & 0x00ff) << 8 | ((USHORT)(x) & 0xff00) >> 8)
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#define TUN_HTONL(x) (((ULONG)(x) & 0x000000ff) << 24 | ((ULONG)(x) & 0x0000ff00) << 8 | ((ULONG)(x) & 0x00ff0000) >> 8 | ((ULONG)(x) & 0xff000000) >> 24)
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#else
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#error "Unable to determine endianess"
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#endif
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typedef struct _TUN_PACKET {
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ULONG Size; // Size of packet data (TUN_EXCH_MAX_IP_PACKET_SIZE max)
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@ -104,19 +116,6 @@ static PVOID TunNotifyInterfaceChangeHandle;
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static NDIS_HANDLE NdisMiniportDriverHandle;
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static volatile LONG64 AdapterCount;
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#if REG_DWORD == REG_DWORD_BIG_ENDIAN
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#define TUN_HTONS(x) ((USHORT)(x))
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#define TUN_HTONL(x) ((ULONG)(x))
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#elif REG_DWORD == REG_DWORD_LITTLE_ENDIAN
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#define TUN_HTONS(x) (((USHORT)(x) & 0x00ff) << 8 | ((USHORT)(x) & 0xff00) >> 8)
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#define TUN_HTONL(x) (((ULONG)(x) & 0x000000ff) << 24 | ((ULONG)(x) & 0x0000ff00) << 8 | ((ULONG)(x) & 0x00ff0000) >> 8 | ((ULONG)(x) & 0xff000000) >> 24)
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#else
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#error "Unable to determine endianess"
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#endif
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#define TUN_CSQ_INSERT_HEAD ((PVOID)TRUE)
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#define TUN_CSQ_INSERT_TAIL ((PVOID)FALSE)
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#define InterlockedGet(val) (InterlockedAdd((val), 0))
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#define InterlockedGet64(val) (InterlockedAdd64((val), 0))
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#define InterlockedGetPointer(val) (InterlockedCompareExchangePointer((val), NULL, NULL))
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@ -259,13 +258,6 @@ static VOID TunCsqCompleteCanceledIrp(IO_CSQ *Csq, IRP *Irp)
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TunCompleteRequest(ctx, Irp, STATUS_CANCELLED, IO_NO_INCREMENT);
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}
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_IRQL_requires_same_
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static void TunSetNBLStatus(_Inout_opt_ NET_BUFFER_LIST *nbl, _In_ NDIS_STATUS status)
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{
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for (; nbl; nbl = NET_BUFFER_LIST_NEXT_NBL(nbl))
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NET_BUFFER_LIST_STATUS(nbl) = status;
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}
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_IRQL_requires_max_(DISPATCH_LEVEL)
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_Must_inspect_result_
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static NTSTATUS TunGetIrpBuffer(_In_ IRP *Irp, _Out_ UCHAR **buffer, _Out_ ULONG *size)
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@ -588,6 +580,63 @@ static void TunQueueProcess(_Inout_ TUN_CTX *ctx)
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}
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}
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_IRQL_requires_same_
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static void TunSetNBLStatus(_Inout_opt_ NET_BUFFER_LIST *nbl, _In_ NDIS_STATUS status)
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{
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for (; nbl; nbl = NET_BUFFER_LIST_NEXT_NBL(nbl))
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NET_BUFFER_LIST_STATUS(nbl) = status;
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}
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static MINIPORT_SEND_NET_BUFFER_LISTS TunSendNetBufferLists;
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_Use_decl_annotations_
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static void TunSendNetBufferLists(NDIS_HANDLE MiniportAdapterContext, NET_BUFFER_LIST *NetBufferLists, NDIS_PORT_NUMBER PortNumber, ULONG SendFlags)
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{
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TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
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KIRQL irql = ExAcquireSpinLockShared(&ctx->TransitionLock);
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NDIS_STATUS status;
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if (!NT_SUCCESS(status = TunCheckForPause(ctx))) {
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TunSetNBLStatus(NetBufferLists, status);
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NdisMSendNetBufferListsComplete(ctx->MiniportAdapterHandle, NetBufferLists, NDIS_SEND_COMPLETE_FLAGS_DISPATCH_LEVEL);
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goto cleanup_TunCompletePause;
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}
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TunQueueAppend(ctx, NetBufferLists, TUN_QUEUE_MAX_NBLS);
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TunQueueProcess(ctx);
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cleanup_TunCompletePause:
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TunCompletePause(ctx, TRUE);
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ExReleaseSpinLockShared(&ctx->TransitionLock, irql);
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}
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static MINIPORT_CANCEL_SEND TunCancelSend;
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_Use_decl_annotations_
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static void TunCancelSend(NDIS_HANDLE MiniportAdapterContext, PVOID CancelId)
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{
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TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
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KLOCK_QUEUE_HANDLE lqh;
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KeAcquireInStackQueuedSpinLock(&ctx->PacketQueue.Lock, &lqh);
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NET_BUFFER_LIST *nbl_last = NULL, **nbl_last_link = &ctx->PacketQueue.FirstNbl;
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for (NET_BUFFER_LIST *nbl = ctx->PacketQueue.FirstNbl, *nbl_next; nbl; nbl = nbl_next) {
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nbl_next = NET_BUFFER_LIST_NEXT_NBL(nbl);
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if (NDIS_GET_NET_BUFFER_LIST_CANCEL_ID(nbl) == CancelId) {
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NET_BUFFER_LIST_STATUS(nbl) = NDIS_STATUS_SEND_ABORTED;
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*nbl_last_link = nbl_next;
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TunNBLRefDec(ctx, nbl, NDIS_SEND_COMPLETE_FLAGS_DISPATCH_LEVEL);
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} else {
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nbl_last = nbl;
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nbl_last_link = &NET_BUFFER_LIST_NEXT_NBL(nbl);
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}
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}
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ctx->PacketQueue.LastNbl = nbl_last;
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KeReleaseInStackQueuedSpinLock(&lqh);
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}
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#define IRP_REFCOUNT(irp) ((volatile LONG *)&(irp)->Tail.Overlay.DriverContext[0])
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#define NET_BUFFER_LIST_IRP(nbl) (NET_BUFFER_LIST_MINIPORT_RESERVED(nbl)[0])
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@ -716,46 +765,40 @@ cleanup_TunCompletePause:
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return status;
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}
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_IRQL_requires_max_(PASSIVE_LEVEL)
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static void TunForceHandlesClosed(_Inout_ TUN_CTX *ctx)
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static MINIPORT_RETURN_NET_BUFFER_LISTS TunReturnNetBufferLists;
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_Use_decl_annotations_
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static void TunReturnNetBufferLists(NDIS_HANDLE MiniportAdapterContext, PNET_BUFFER_LIST NetBufferLists, ULONG ReturnFlags)
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{
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NTSTATUS status;
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PEPROCESS process;
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KAPC_STATE apc_state;
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PVOID object;
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OBJECT_HANDLE_INFORMATION handle_info;
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SYSTEM_HANDLE_INFORMATION_EX *table = NULL;
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TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
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for (ULONG size = 0, req; (status = ZwQuerySystemInformation(SystemExtendedHandleInformation, table, size, &req)) == STATUS_INFO_LENGTH_MISMATCH; size = req) {
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if (table)
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ExFreePoolWithTag(table, TUN_HTONL(TUN_MEMORY_TAG));
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table = ExAllocatePoolWithTag(PagedPool, req, TUN_HTONL(TUN_MEMORY_TAG));
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if (!table)
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return;
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}
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if (!NT_SUCCESS(status) || !table)
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goto out;
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LONG64 stat_size = 0, stat_p_ok = 0, stat_p_err = 0;
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for (NET_BUFFER_LIST *nbl = NetBufferLists, *nbl_next; nbl; nbl = nbl_next) {
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nbl_next = NET_BUFFER_LIST_NEXT_NBL(nbl);
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NET_BUFFER_LIST_NEXT_NBL(nbl) = NULL;
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for (ULONG_PTR i = 0; i < table->NumberOfHandles; ++i) {
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FILE_OBJECT *file = table->Handles[i].Object; //XXX: We should probably first look at table->Handles[i].ObjectTypeIndex, but the value changes lots between NT versions.
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if (!file || file->Type != 5 || file->DeviceObject != ctx->Device.Object)
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continue;
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status = PsLookupProcessByProcessId(table->Handles[i].UniqueProcessId, &process);
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if (!NT_SUCCESS(status))
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continue;
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KeStackAttachProcess(process, &apc_state);
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status = ObReferenceObjectByHandle(table->Handles[i].HandleValue, 0, NULL, UserMode, &object, &handle_info);
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if (NT_SUCCESS(status)) {
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if (object == file)
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ObCloseHandle(table->Handles[i].HandleValue, UserMode);
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ObfDereferenceObject(object);
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IRP *irp = NET_BUFFER_LIST_IRP(nbl);
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MDL *mdl = NET_BUFFER_FIRST_MDL(NET_BUFFER_LIST_FIRST_NB(nbl));
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if (NT_SUCCESS(NET_BUFFER_LIST_STATUS(nbl))) {
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ULONG p_size = MmGetMdlByteCount(mdl);
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stat_size += p_size;
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stat_p_ok++;
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} else
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stat_p_err++;
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NdisFreeMdl(mdl);
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NdisFreeNetBufferList(nbl);
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ASSERT(InterlockedGet(IRP_REFCOUNT(irp)) > 0);
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if (InterlockedDecrement(IRP_REFCOUNT(irp)) <= 0) {
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TunCompleteRequest(ctx, irp, STATUS_SUCCESS, IO_NETWORK_INCREMENT);
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TunCompletePause(ctx, TRUE);
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}
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KeUnstackDetachProcess(&apc_state);
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ObfDereferenceObject(process);
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}
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out:
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if (table)
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ExFreePoolWithTag(table, TUN_HTONL(TUN_MEMORY_TAG));
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InterlockedAdd64((LONG64 *)&ctx->Statistics.ifHCInOctets, stat_size);
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InterlockedAdd64((LONG64 *)&ctx->Statistics.ifHCInUcastOctets, stat_size);
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InterlockedAdd64((LONG64 *)&ctx->Statistics.ifHCInUcastPkts, stat_p_ok);
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InterlockedAdd64((LONG64 *)&ctx->Statistics.ifInErrors, stat_p_err);
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}
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static DRIVER_DISPATCH TunDispatch;
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@ -845,6 +888,19 @@ cleanup_complete_req:
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return status;
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}
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static MINIPORT_RESTART TunRestart;
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_Use_decl_annotations_
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static NDIS_STATUS TunRestart(NDIS_HANDLE MiniportAdapterContext, PNDIS_MINIPORT_RESTART_PARAMETERS MiniportRestartParameters)
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{
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TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
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InterlockedExchange((LONG *)&ctx->State, TUN_STATE_RESTARTING);
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InterlockedExchange64(&ctx->ActiveTransactionCount, 1);
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InterlockedExchange((LONG *)&ctx->State, TUN_STATE_RUNNING);
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return NDIS_STATUS_SUCCESS;
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}
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static MINIPORT_PAUSE TunPause;
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_Use_decl_annotations_
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static NDIS_STATUS TunPause(NDIS_HANDLE MiniportAdapterContext, PNDIS_MINIPORT_PAUSE_PARAMETERS MiniportPauseParameters)
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@ -859,111 +915,12 @@ static NDIS_STATUS TunPause(NDIS_HANDLE MiniportAdapterContext, PNDIS_MINIPORT_P
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return TunCompletePause(ctx, FALSE);
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}
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static MINIPORT_RESTART TunRestart;
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_Use_decl_annotations_
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static NDIS_STATUS TunRestart(NDIS_HANDLE MiniportAdapterContext, PNDIS_MINIPORT_RESTART_PARAMETERS MiniportRestartParameters)
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{
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TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
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InterlockedExchange((LONG *)&ctx->State, TUN_STATE_RESTARTING);
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InterlockedExchange64(&ctx->ActiveTransactionCount, 1);
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InterlockedExchange((LONG *)&ctx->State, TUN_STATE_RUNNING);
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return NDIS_STATUS_SUCCESS;
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}
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static MINIPORT_RETURN_NET_BUFFER_LISTS TunReturnNetBufferLists;
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_Use_decl_annotations_
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static void TunReturnNetBufferLists(NDIS_HANDLE MiniportAdapterContext, PNET_BUFFER_LIST NetBufferLists, ULONG ReturnFlags)
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{
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TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
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LONG64 stat_size = 0, stat_p_ok = 0, stat_p_err = 0;
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for (NET_BUFFER_LIST *nbl = NetBufferLists, *nbl_next; nbl; nbl = nbl_next) {
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nbl_next = NET_BUFFER_LIST_NEXT_NBL(nbl);
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NET_BUFFER_LIST_NEXT_NBL(nbl) = NULL;
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IRP *irp = NET_BUFFER_LIST_IRP(nbl);
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MDL *mdl = NET_BUFFER_FIRST_MDL(NET_BUFFER_LIST_FIRST_NB(nbl));
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if (NT_SUCCESS(NET_BUFFER_LIST_STATUS(nbl))) {
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ULONG p_size = MmGetMdlByteCount(mdl);
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stat_size += p_size;
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stat_p_ok++;
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} else
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stat_p_err++;
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NdisFreeMdl(mdl);
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NdisFreeNetBufferList(nbl);
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ASSERT(InterlockedGet(IRP_REFCOUNT(irp)) > 0);
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if (InterlockedDecrement(IRP_REFCOUNT(irp)) <= 0) {
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TunCompleteRequest(ctx, irp, STATUS_SUCCESS, IO_NETWORK_INCREMENT);
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TunCompletePause(ctx, TRUE);
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}
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}
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InterlockedAdd64((LONG64 *)&ctx->Statistics.ifHCInOctets, stat_size);
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InterlockedAdd64((LONG64 *)&ctx->Statistics.ifHCInUcastOctets, stat_size);
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InterlockedAdd64((LONG64 *)&ctx->Statistics.ifHCInUcastPkts, stat_p_ok);
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InterlockedAdd64((LONG64 *)&ctx->Statistics.ifInErrors, stat_p_err);
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}
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static MINIPORT_CANCEL_SEND TunCancelSend;
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_Use_decl_annotations_
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static void TunCancelSend(NDIS_HANDLE MiniportAdapterContext, PVOID CancelId)
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{
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TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
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KLOCK_QUEUE_HANDLE lqh;
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KeAcquireInStackQueuedSpinLock(&ctx->PacketQueue.Lock, &lqh);
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NET_BUFFER_LIST *nbl_last = NULL, **nbl_last_link = &ctx->PacketQueue.FirstNbl;
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for (NET_BUFFER_LIST *nbl = ctx->PacketQueue.FirstNbl, *nbl_next; nbl; nbl = nbl_next) {
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nbl_next = NET_BUFFER_LIST_NEXT_NBL(nbl);
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if (NDIS_GET_NET_BUFFER_LIST_CANCEL_ID(nbl) == CancelId) {
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NET_BUFFER_LIST_STATUS(nbl) = NDIS_STATUS_SEND_ABORTED;
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*nbl_last_link = nbl_next;
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TunNBLRefDec(ctx, nbl, NDIS_SEND_COMPLETE_FLAGS_DISPATCH_LEVEL);
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} else {
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nbl_last = nbl;
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nbl_last_link = &NET_BUFFER_LIST_NEXT_NBL(nbl);
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}
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}
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ctx->PacketQueue.LastNbl = nbl_last;
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KeReleaseInStackQueuedSpinLock(&lqh);
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}
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static MINIPORT_DEVICE_PNP_EVENT_NOTIFY TunDevicePnPEventNotify;
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_Use_decl_annotations_
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static void TunDevicePnPEventNotify(NDIS_HANDLE MiniportAdapterContext, PNET_DEVICE_PNP_EVENT NetDevicePnPEvent)
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{
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}
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static MINIPORT_SHUTDOWN TunShutdownEx;
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_Use_decl_annotations_
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static void TunShutdownEx(NDIS_HANDLE MiniportAdapterContext, NDIS_SHUTDOWN_ACTION ShutdownAction)
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{
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TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
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if (ShutdownAction == NdisShutdownBugCheck)
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return;
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InterlockedExchange((LONG *)&ctx->State, TUN_STATE_SHUTDOWN);
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}
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static MINIPORT_CANCEL_DIRECT_OID_REQUEST TunCancelDirectOidRequest;
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_Use_decl_annotations_
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static void TunCancelDirectOidRequest(NDIS_HANDLE MiniportAdapterContext, PVOID RequestId)
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{
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}
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static MINIPORT_CANCEL_OID_REQUEST TunCancelOidRequest;
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_Use_decl_annotations_
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static void TunCancelOidRequest(NDIS_HANDLE MiniportAdapterContext, PVOID RequestId)
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{
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}
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static DRIVER_NOTIFICATION_CALLBACK_ROUTINE TunPnPNotifyDeviceChange;
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_Use_decl_annotations_
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static NTSTATUS TunPnPNotifyDeviceChange(PVOID NotificationStruct, PVOID Context)
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@ -1283,12 +1240,46 @@ cleanup_NdisDeregisterDeviceEx:
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return status;
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}
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static MINIPORT_UNLOAD TunUnload;
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_Use_decl_annotations_
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static VOID TunUnload(PDRIVER_OBJECT DriverObject)
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_IRQL_requires_max_(PASSIVE_LEVEL)
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static void TunForceHandlesClosed(_Inout_ TUN_CTX *ctx)
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{
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IoUnregisterPlugPlayNotificationEx(TunNotifyInterfaceChangeHandle);
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NdisMDeregisterMiniportDriver(NdisMiniportDriverHandle);
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NTSTATUS status;
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PEPROCESS process;
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KAPC_STATE apc_state;
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PVOID object;
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OBJECT_HANDLE_INFORMATION handle_info;
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SYSTEM_HANDLE_INFORMATION_EX *table = NULL;
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for (ULONG size = 0, req; (status = ZwQuerySystemInformation(SystemExtendedHandleInformation, table, size, &req)) == STATUS_INFO_LENGTH_MISMATCH; size = req) {
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if (table)
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ExFreePoolWithTag(table, TUN_HTONL(TUN_MEMORY_TAG));
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table = ExAllocatePoolWithTag(PagedPool, req, TUN_HTONL(TUN_MEMORY_TAG));
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if (!table)
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return;
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}
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if (!NT_SUCCESS(status) || !table)
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goto out;
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for (ULONG_PTR i = 0; i < table->NumberOfHandles; ++i) {
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FILE_OBJECT *file = table->Handles[i].Object; //XXX: We should probably first look at table->Handles[i].ObjectTypeIndex, but the value changes lots between NT versions.
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if (!file || file->Type != 5 || file->DeviceObject != ctx->Device.Object)
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continue;
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status = PsLookupProcessByProcessId(table->Handles[i].UniqueProcessId, &process);
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if (!NT_SUCCESS(status))
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continue;
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KeStackAttachProcess(process, &apc_state);
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status = ObReferenceObjectByHandle(table->Handles[i].HandleValue, 0, NULL, UserMode, &object, &handle_info);
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if (NT_SUCCESS(status)) {
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if (object == file)
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ObCloseHandle(table->Handles[i].HandleValue, UserMode);
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ObfDereferenceObject(object);
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}
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KeUnstackDetachProcess(&apc_state);
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ObfDereferenceObject(process);
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}
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out:
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if (table)
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ExFreePoolWithTag(table, TUN_HTONL(TUN_MEMORY_TAG));
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}
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_IRQL_requires_max_(APC_LEVEL)
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@ -1358,49 +1349,16 @@ static void TunHaltEx(NDIS_HANDLE MiniportAdapterContext, NDIS_HALT_ACTION HaltA
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NdisDeregisterDeviceEx(ctx->Device.Handle);
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}
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_IRQL_requires_max_(PASSIVE_LEVEL)
|
||||
static NDIS_STATUS TunOidSet(_Inout_ TUN_CTX *ctx, _Inout_ NDIS_OID_REQUEST *OidRequest)
|
||||
static MINIPORT_SHUTDOWN TunShutdownEx;
|
||||
_Use_decl_annotations_
|
||||
static void TunShutdownEx(NDIS_HANDLE MiniportAdapterContext, NDIS_SHUTDOWN_ACTION ShutdownAction)
|
||||
{
|
||||
ASSERT(OidRequest->RequestType == NdisRequestSetInformation);
|
||||
TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
|
||||
|
||||
OidRequest->DATA.SET_INFORMATION.BytesNeeded =
|
||||
OidRequest->DATA.SET_INFORMATION.BytesRead = 0;
|
||||
if (ShutdownAction == NdisShutdownBugCheck)
|
||||
return;
|
||||
|
||||
switch (OidRequest->DATA.SET_INFORMATION.Oid) {
|
||||
case OID_GEN_CURRENT_PACKET_FILTER:
|
||||
case OID_GEN_CURRENT_LOOKAHEAD:
|
||||
if (OidRequest->DATA.SET_INFORMATION.InformationBufferLength != 4) {
|
||||
OidRequest->DATA.SET_INFORMATION.BytesNeeded = 4;
|
||||
return NDIS_STATUS_INVALID_LENGTH;
|
||||
}
|
||||
OidRequest->DATA.SET_INFORMATION.BytesRead = 4;
|
||||
return NDIS_STATUS_SUCCESS;
|
||||
|
||||
case OID_GEN_LINK_PARAMETERS:
|
||||
OidRequest->DATA.SET_INFORMATION.BytesRead = OidRequest->DATA.SET_INFORMATION.InformationBufferLength;
|
||||
return NDIS_STATUS_SUCCESS;
|
||||
|
||||
case OID_GEN_INTERRUPT_MODERATION:
|
||||
return NDIS_STATUS_INVALID_DATA;
|
||||
|
||||
case OID_PNP_SET_POWER:
|
||||
if (OidRequest->DATA.SET_INFORMATION.InformationBufferLength != sizeof(NDIS_DEVICE_POWER_STATE)) {
|
||||
OidRequest->DATA.SET_INFORMATION.BytesNeeded = sizeof(NDIS_DEVICE_POWER_STATE);
|
||||
return NDIS_STATUS_INVALID_LENGTH;
|
||||
}
|
||||
OidRequest->DATA.SET_INFORMATION.BytesRead = sizeof(NDIS_DEVICE_POWER_STATE);
|
||||
|
||||
NDIS_DEVICE_POWER_STATE state = *(NDIS_DEVICE_POWER_STATE *)OidRequest->DATA.SET_INFORMATION.InformationBuffer;
|
||||
KIRQL irql = ExAcquireSpinLockExclusive(&ctx->TransitionLock);
|
||||
InterlockedExchange((LONG *)&ctx->PowerState, state);
|
||||
ExReleaseSpinLockExclusive(&ctx->TransitionLock, irql);
|
||||
if (state >= NdisDeviceStateD1)
|
||||
TunQueueClear(ctx, STATUS_NDIS_LOW_POWER_STATE);
|
||||
|
||||
return NDIS_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
return NDIS_STATUS_NOT_SUPPORTED;
|
||||
InterlockedExchange((LONG *)&ctx->State, TUN_STATE_SHUTDOWN);
|
||||
}
|
||||
|
||||
_IRQL_requires_max_(APC_LEVEL)
|
||||
@ -1522,6 +1480,50 @@ static NDIS_STATUS TunOidQuery(_Inout_ TUN_CTX *ctx, _Inout_ NDIS_OID_REQUEST *O
|
||||
return NDIS_STATUS_NOT_SUPPORTED;
|
||||
}
|
||||
|
||||
_IRQL_requires_max_(PASSIVE_LEVEL)
|
||||
static NDIS_STATUS TunOidSet(_Inout_ TUN_CTX *ctx, _Inout_ NDIS_OID_REQUEST *OidRequest)
|
||||
{
|
||||
ASSERT(OidRequest->RequestType == NdisRequestSetInformation);
|
||||
|
||||
OidRequest->DATA.SET_INFORMATION.BytesNeeded = OidRequest->DATA.SET_INFORMATION.BytesRead = 0;
|
||||
|
||||
switch (OidRequest->DATA.SET_INFORMATION.Oid) {
|
||||
case OID_GEN_CURRENT_PACKET_FILTER:
|
||||
case OID_GEN_CURRENT_LOOKAHEAD:
|
||||
if (OidRequest->DATA.SET_INFORMATION.InformationBufferLength != 4) {
|
||||
OidRequest->DATA.SET_INFORMATION.BytesNeeded = 4;
|
||||
return NDIS_STATUS_INVALID_LENGTH;
|
||||
}
|
||||
OidRequest->DATA.SET_INFORMATION.BytesRead = 4;
|
||||
return NDIS_STATUS_SUCCESS;
|
||||
|
||||
case OID_GEN_LINK_PARAMETERS:
|
||||
OidRequest->DATA.SET_INFORMATION.BytesRead = OidRequest->DATA.SET_INFORMATION.InformationBufferLength;
|
||||
return NDIS_STATUS_SUCCESS;
|
||||
|
||||
case OID_GEN_INTERRUPT_MODERATION:
|
||||
return NDIS_STATUS_INVALID_DATA;
|
||||
|
||||
case OID_PNP_SET_POWER:
|
||||
if (OidRequest->DATA.SET_INFORMATION.InformationBufferLength != sizeof(NDIS_DEVICE_POWER_STATE)) {
|
||||
OidRequest->DATA.SET_INFORMATION.BytesNeeded = sizeof(NDIS_DEVICE_POWER_STATE);
|
||||
return NDIS_STATUS_INVALID_LENGTH;
|
||||
}
|
||||
OidRequest->DATA.SET_INFORMATION.BytesRead = sizeof(NDIS_DEVICE_POWER_STATE);
|
||||
|
||||
NDIS_DEVICE_POWER_STATE state = *(NDIS_DEVICE_POWER_STATE *)OidRequest->DATA.SET_INFORMATION.InformationBuffer;
|
||||
KIRQL irql = ExAcquireSpinLockExclusive(&ctx->TransitionLock);
|
||||
InterlockedExchange((LONG *)&ctx->PowerState, state);
|
||||
ExReleaseSpinLockExclusive(&ctx->TransitionLock, irql);
|
||||
if (state >= NdisDeviceStateD1)
|
||||
TunQueueClear(ctx, STATUS_NDIS_LOW_POWER_STATE);
|
||||
|
||||
return NDIS_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
return NDIS_STATUS_NOT_SUPPORTED;
|
||||
}
|
||||
|
||||
static MINIPORT_OID_REQUEST TunOidRequest;
|
||||
_Use_decl_annotations_
|
||||
static NDIS_STATUS TunOidRequest(NDIS_HANDLE MiniportAdapterContext, PNDIS_OID_REQUEST OidRequest)
|
||||
@ -1539,6 +1541,12 @@ static NDIS_STATUS TunOidRequest(NDIS_HANDLE MiniportAdapterContext, PNDIS_OID_R
|
||||
}
|
||||
}
|
||||
|
||||
static MINIPORT_CANCEL_OID_REQUEST TunCancelOidRequest;
|
||||
_Use_decl_annotations_
|
||||
static void TunCancelOidRequest(NDIS_HANDLE MiniportAdapterContext, PVOID RequestId)
|
||||
{
|
||||
}
|
||||
|
||||
static MINIPORT_DIRECT_OID_REQUEST TunDirectOidRequest;
|
||||
_Use_decl_annotations_
|
||||
static NDIS_STATUS TunDirectOidRequest(NDIS_HANDLE MiniportAdapterContext, PNDIS_OID_REQUEST OidRequest)
|
||||
@ -1554,28 +1562,18 @@ static NDIS_STATUS TunDirectOidRequest(NDIS_HANDLE MiniportAdapterContext, PNDIS
|
||||
}
|
||||
}
|
||||
|
||||
static MINIPORT_SEND_NET_BUFFER_LISTS TunSendNetBufferLists;
|
||||
static MINIPORT_CANCEL_DIRECT_OID_REQUEST TunCancelDirectOidRequest;
|
||||
_Use_decl_annotations_
|
||||
static void TunSendNetBufferLists(NDIS_HANDLE MiniportAdapterContext, NET_BUFFER_LIST *NetBufferLists, NDIS_PORT_NUMBER PortNumber, ULONG SendFlags)
|
||||
static void TunCancelDirectOidRequest(NDIS_HANDLE MiniportAdapterContext, PVOID RequestId)
|
||||
{
|
||||
TUN_CTX *ctx = (TUN_CTX *)MiniportAdapterContext;
|
||||
}
|
||||
|
||||
KIRQL irql = ExAcquireSpinLockShared(&ctx->TransitionLock);
|
||||
|
||||
NDIS_STATUS status;
|
||||
if (!NT_SUCCESS(status = TunCheckForPause(ctx))) {
|
||||
TunSetNBLStatus(NetBufferLists, status);
|
||||
NdisMSendNetBufferListsComplete(ctx->MiniportAdapterHandle, NetBufferLists, NDIS_SEND_COMPLETE_FLAGS_DISPATCH_LEVEL);
|
||||
goto cleanup_TunCompletePause;
|
||||
}
|
||||
|
||||
TunQueueAppend(ctx, NetBufferLists, TUN_QUEUE_MAX_NBLS);
|
||||
|
||||
TunQueueProcess(ctx);
|
||||
|
||||
cleanup_TunCompletePause:
|
||||
TunCompletePause(ctx, TRUE);
|
||||
ExReleaseSpinLockShared(&ctx->TransitionLock, irql);
|
||||
static MINIPORT_UNLOAD TunUnload;
|
||||
_Use_decl_annotations_
|
||||
static VOID TunUnload(PDRIVER_OBJECT DriverObject)
|
||||
{
|
||||
IoUnregisterPlugPlayNotificationEx(TunNotifyInterfaceChangeHandle);
|
||||
NdisMDeregisterMiniportDriver(NdisMiniportDriverHandle);
|
||||
}
|
||||
|
||||
DRIVER_INITIALIZE DriverEntry;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user