标签：style io ar os 使用 sp for on 数据
xp平台下是使用TDI,win 7平台采用的是WFP的模式
WFP框架下思路
获取进程ID 获取进程的上传数据大小和下载数据大小,然后存储到链表中
链表中节点结构体如下:
typedef struct tagFlowInfoItem
{
/** 链表结构
*/
LIST_ENTRY m_listEntry;
/** 进程ID
*/
HANDLE m_processID;
/** 已上传流量,BYTE为单位
*/
UINT64 m_uploadFlow;
/** 已下载流量,BYTE为单位
*/
UINT64 m_downloadFlow;
/** 上传速度,BYTE为单位
*/
ULONG m_uploadSpeed;
/** 下载速度,BYTE为单位
*/
ULONG m_downloadSpeed;
/** 限制的上传速度,BYTE为单位
*/
ULONG m_limitUploadSpeed;
/** 限制的下载速度,BYTE为单位
*/
ULONG m_limitDownloadSpeed;
} FlowInfoItem;
wfp中是需要注册callout函数的,进程id是在FWPM_LAYER_ALE_FLOW_ESTABLISHED_V4层来获取,而UDP和TCP流数据信息(比如大小,内容)是在FWPM_LAYER_DATAGRAM_DATA_V4和FWPM_LAYER_STREAM_V4层来获取的
,问题来了,在流注册的callout函数中我们可以获取到数据的大小,但是问题来了,怎么样把进程ID和对应的进程数据相对应???
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不断的查找资料,研究wdk文档,wdk示例,各种搜索和qq群请教,(*^__^*) 嘻嘻……
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最终发现wdk的示例中有相关的代码可以参考一下,
目录如下:C:\WinDDK\7600.16385.1\src\network\trans\msnmntr
主要是用到了一个FwpsFlowAssociateContext0函数,具体的用法看msdn或者示例代码使用,很简单
一定要很仔细的看哦,这个函数有个很需要注意的地方,不然就蓝蓝更健康了哦,(关于DeleteFn函数的注册和写法)
这个FwpsFlowAssociateContext0函数的作用就是把进程id从FWPM_LAYER_ALE_FLOW_ESTABLISHED_V4层传递到了FWPM_LAYER_DATAGRAM_DATA_V4和FWPM_LAYER_STREAM_V4层,然后我们就可以使用链表结构把进程id和进程的数据关联起来了.
那么如何识别是上传数据还是下载数据呢?好问题
解析layerData中的streamData,streamData中有个标志位,
上传数据判断:
和系统定义的宏FWPS_STREAM_FLAG_SEND和FWPS_STREAM_FLAG_SEND_EXPEDITED与(&)操作一下,不就可以得到是否是上传了吗?
下载数据判断:
和上传数据的方法类似.
最后说一句,在操作链表的时候,记得加锁.
xp下比win7下要简单的多,而且TDI的资料也多.实现起来还是容易的多
VOID AnalyzeNetworkIrp(PIRP Irp)
{
PEPROCESS Process;
PIO_STACK_LOCATION IoStackLocation;
NETWORK_USAGE_INFORMATION NetworkUsageInformation;
//memset(&NetworkUsageInformation,0,sizeof(NETWORK_USAGE_INFORMATION));
IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
ASSERT(IoStackLocation->MajorFunction == IRP_MJ_INTERNAL_DEVICE_CONTROL);
Process = PsGetCurrentProcess();
if (QueryProcessNetworkUsage(Process, &NetworkUsageInformation) == FALSE)
{
NetworkUsageInformation.BytesReceived = 0;
NetworkUsageInformation.BytesSent = 0;
}
if (IoStackLocation->MinorFunction == TDI_RECEIVE) // TDI_RECEIVE
{
DbgPrint("Enter TCP 接收!\n");
PTDI_REQUEST_KERNEL_RECEIVE Parameters;
Parameters = (PTDI_REQUEST_KERNEL_RECEIVE)&IoStackLocation->Parameters;
NetworkUsageInformation.BytesReceived += Parameters->ReceiveLength;
}
else if (IoStackLocation->MinorFunction == TDI_SEND) //TDI_SEND
{
DbgPrint("Enter TCP 发送!\n");
PTDI_REQUEST_KERNEL_SEND Parameters;
Parameters = (PTDI_REQUEST_KERNEL_SEND)&IoStackLocation->Parameters;
NetworkUsageInformation.BytesSent += Parameters->SendLength;
}
else if (IoStackLocation->MinorFunction == TDI_RECEIVE_DATAGRAM) //TDI_RECEIVE_DATAGRAM
{
DbgPrint("Enter UDP 接收!\n");
PTDI_REQUEST_KERNEL_RECEIVEDG Parameters;
Parameters = (PTDI_REQUEST_KERNEL_RECEIVEDG)&IoStackLocation->Parameters;
NetworkUsageInformation.BytesReceived += Parameters->ReceiveLength;
}
else if (IoStackLocation->MinorFunction == TDI_SEND_DATAGRAM) //TDI_SEND_DATAGRAM
{
DbgPrint("Enter UDP 发送!\n");
PTDI_REQUEST_KERNEL_SENDDG Parameters;
Parameters = (PTDI_REQUEST_KERNEL_SENDDG)&IoStackLocation->Parameters;
NetworkUsageInformation.BytesSent += Parameters->SendLength;
}
else if (IoStackLocation->MinorFunction == TDI_CONNECT) //本机向外界发起连接请求
{
DbgPrint("Enter Connect!\n");
PTDI_REQUEST_KERNEL_SENDDG Parameters;
Parameters = (PTDI_REQUEST_KERNEL_SENDDG)&IoStackLocation->Parameters;
NetworkUsageInformation.BytesSent += Parameters->SendLength;
}
else if (IoStackLocation->MinorFunction == TDI_ACCEPT)//外界向本机发起连接请求
{
DbgPrint("Enter Accept!\n");
PTDI_REQUEST_KERNEL_RECEIVEDG Parameters;
Parameters = (PTDI_REQUEST_KERNEL_RECEIVEDG)&IoStackLocation->Parameters;
NetworkUsageInformation.BytesReceived += Parameters->ReceiveLength;
}
// 更新进程的网络使用情况
UpdateProcessNetworkUsage(Process, &NetworkUsageInformation);
return;
}
VOID UpdateProcessNetworkUsage(
__in PEPROCESS Process,
__in PNETWORK_USAGE_INFORMATION NetworkUsageInformation
)
{
KLOCK_QUEUE_HANDLE LockHandle;
KeAcquireInStackQueuedSpinLock(&NetworkUsageGenericTable.TableLock,&LockHandle);
UpdateProcessNetworkUsageUnsafe(Process, NetworkUsageInformation);
KeReleaseInStackQueuedSpinLock(&LockHandle);
return;
}
VOID UpdateProcessNetworkUsageUnsafe(
__in PEPROCESS Process,
__in PNETWORK_USAGE_INFORMATION NetworkUsageInformation
)
{
NETWORK_USAGE_GENERIC_TABLE_NODE TableNode;
PVOID EntryFound;
TableNode.Process = Process;
TableNode.NetworkUsageInformation = *NetworkUsageInformation;
EntryFound = RtlLookupElementGenericTable(&NetworkUsageGenericTable.Table,
(PVOID)&TableNode);
if (EntryFound)
{
BOOLEAN Status;
Status = RtlDeleteElementGenericTable(&NetworkUsageGenericTable.Table, EntryFound);
ASSERT(Status == TRUE);
}
(VOID)RtlInsertElementGenericTable(&NetworkUsageGenericTable.Table,
(PVOID)&TableNode, sizeof(NETWORK_USAGE_GENERIC_TABLE_NODE), NULL);
return;
}
//网络使用情况结构体定义
typedef struct _NETWORK_USAGE_INFORMATION {
ULONGLONG BytesSent;
ULONGLONG BytesReceived;
} NETWORK_USAGE_INFORMATION, *PNETWORK_USAGE_INFORMATION;
typedef struct _NETWORK_USAGE_GENERIC_TABLE_NODE {
PEPROCESS Process;
//UINT32 uProcessID;
NETWORK_USAGE_INFORMATION NetworkUsageInformation;
} NETWORK_USAGE_GENERIC_TABLE_NODE, *PNETWORK_USAGE_GENERIC_TABLE_NODE;
typedef struct _NETWORK_USAGE_GENERIC_TABLE {
RTL_GENERIC_TABLE Table;
KSPIN_LOCK TableLock;
KSPIN_LOCK TrafficLock;
} NETWORK_USAGE_GENERIC_TABLE, *PNETWORK_USAGE_GENERIC_TABLE;
NETWORK_USAGE_GENERIC_TABLE NetworkUsageGenericTable;
思路如此,TDI的实现大家实现起来不难,我就不多说了,显得很唠叨烦人,嘿嘿
标签：style io ar os 使用 sp for on 数据
原文地址：http://blog.csdn.net/haolipengzhanshen/article/details/41863279
