我修改了DDk的passthru中 PtReceivePacket Packet包，好象没有什么用呀

测试环境：
服务端：XP ，NC监听80
另一端：XP，telnet IP 80
我修改了DDk的passthru中 PtReceivePacket Packet包，好象还是能够互连
问题有二：
一、我调试DDK的passthru例子，会进PtReceivePacket Packet函数，而且会进#ifdef NDIS51这段代码（我的环境是XP），似乎网上所有能找的例子在这一块都没有修改呀
二、于是我就硬着头皮进行修改，代码如下：
#ifdef NDIS51
//
// Check if we can reuse the same packet for indicating up.
// See also: PtReceive().
//
(VOID)NdisIMGetCurrentPacketStack(Packet, &Remaining);
if (Remaining)
{

//分配pPacketContentrcv，接收
Status=NdisAllocateMemory(&pPacketContentrcv,BUFFER_SIZE,0,HighestAcceptableMax);
if(Status!=NDIS_STATUS_SUCCESS)
{
DBGPRINT(("PtReceivePacket:NdisAllocateMemory pPacketContentrcv Failed\n"));
return(NDIS_STATUS_NOT_ACCEPTED);
}

if(pPacketContentrcv==NULL)
{
DBGPRINT(("PtReceivePacket:pPacketContentrcv==NULL\n"));
return(NDIS_STATUS_NOT_ACCEPTED);
}
NdisZeroMemory(pPacketContentrcv,BUFFER_SIZE);

//packet to buffer (pPacketContentrcv)
NdisQueryPacket(Packet, NULL, NULL, NULL, &PacketLen);
CopyPacketToBuffer( pPacketContentrcv,Packet,0,PacketLen,1);

DBGPRINT(("PtReceivePacket ptDealCapsulate 1111\n"));
Status = ptDealCapsulate(ProtocolBindingContext,pPacketContentrcv,PacketLen);
if(Status!=NDIS_STATUS_SUCCESS)
{
NdisFreeMemory(pPacketContentrcv,BUFFER_SIZE,0);
return(NDIS_STATUS_NOT_ACCEPTED);
}

//
// Get a packet off the pool and indicate that up
//
NdisDprAllocatePacket(&Status,
&MyPacket,
pAdapt->RecvPacketPoolHandle);

if (Status == NDIS_STATUS_SUCCESS)
{
PRECV_RSVD RecvRsvd;

NdisAllocateBuffer(&Status,&pPacketBuffer,pAdapt->RcvBufferPoolHandle,pPacketContentrcv,PacketLen);

if (Status!=NDIS_STATUS_SUCCESS)
{
NdisFreeMemory(pPacketContentrcv,BUFFER_SIZE,0);
NdisDprFreePacket(MyPacket);
return(NDIS_STATUS_NOT_ACCEPTED);
}

NdisChainBufferAtFront(MyPacket,pPacketBuffer);

RecvRsvd = (PRECV_RSVD)(MyPacket->MiniportReserved);
RecvRsvd->OriginalPkt = Packet;

MyPacket->Private.Head = Packet->Private.Head;
MyPacket->Private.Tail = Packet->Private.Tail;

//
// Get the original packet (it could be the same packet as the one
// received or a different one based on the number of layered miniports
// below) and set it on the indicated packet so the OOB data is visible
// correctly to protocols above us.
//
NDIS_SET_ORIGINAL_PACKET(MyPacket, NDIS_GET_ORIGINAL_PACKET(Packet));

//
// Set Packet Flags
//
NdisGetPacketFlags(MyPacket) = NdisGetPacketFlags(Packet);

Status = NDIS_GET_PACKET_STATUS(Packet);

NDIS_SET_PACKET_STATUS(MyPacket, Status);
NDIS_SET_PACKET_HEADER_SIZE(MyPacket, NDIS_GET_PACKET_HEADER_SIZE(Packet));

NdisMIndicateReceivePacket(pAdapt->MiniportHandle, &MyPacket, 1);

if(NDIS_GET_PACKET_STATUS(MyPacket)!=NDIS_STATUS_PENDING)//如状态为PENDING，则调用MPReturnPacket
{
DBGPRINT(("In PtReceive And Free Memory\n"));
NdisFreeBuffer(pPacketBuffer);
NdisFreeMemory(pPacketContentrcv,BUFFER_SIZE,0);
if (MyPacket!=NULL)
{
DBGPRINT(("1MyPacket MyPacket MyPacketMyPacketMyPacketMyPacketMyPacketMyPacketMyPacket\n"));

//NdisDprFreePacket(MyPacket);
//MyPacket=NULL;
}
}

//
// Check if we had indicated up the packet with NDIS_STATUS_RESOURCES
// NOTE -- do not use NDIS_GET_PACKET_STATUS(MyPacket) for this since
// it might have changed! Use the value saved in the local variable.
//
if (Status == NDIS_STATUS_RESOURCES)
{
//
// Our ReturnPackets handler will not be called for this packet.
// We should reclaim it right here.
//
if (MyPacket!=NULL)
{
DBGPRINT(("2MyPacket MyPacket MyPacketMyPacketMyPacketMyPacketMyPacketMyPacketMyPacket\n"));

NdisDprFreePacket(MyPacket);
//MyPacket=NULL;
}
}

return((Status != NDIS_STATUS_RESOURCES) ? 1 : 0);


}
else
{
//
// We are out of packets. Silently drop it.
//
NdisFreeBuffer(pPacketBuffer);
return(0);
}
}
#endif // NDIS51

我在函数ptDealCapsulate中对收到的BUFFER进行修改，比如将TCP的端口换掉，甚至将IP地址全部换掉，好象还是能够通信，怪哉，各位走过路过看过，留下意见呀,本人第一次学passthru，请指教

路过

一般程序走得比较多的应该是ptReceive吧，所以你怎么改上面的函数，其实都没有影响

期待答案！

不要好像。。。，要确定.。。。，所以：

1 打印修改前的数据 ， 打印修改后的数据 对比

2 抓发送出去的数据，和修改前与修改后数据对比

3 在接收端抓报，和修改前与修改后数据对比

然后。。。，应该能够找出问题了

问题已经解决：

答案：
修改代码
RecvRsvd = (PRECV_RSVD)(MyPacket->MiniportReserved);
RecvRsvd->OriginalPkt = Packet;

MyPacket->Private.Head = Packet->Private.Head;
MyPacket->Private.Tail = Packet->Private.Tail;
为：
RecvRsvd = (PRECV_RSVD)(MyPacket->MiniportReserved);
RecvRsvd->OriginalPkt = Packet;

MyPacket->Private.Head = NULL;
MyPacket->Private.Tail = NULL;

就可以实现我所需要的功能。

最近很上驱动网,今天才看到你发的消息,

内存泄露