帮帮小弟

NDIS_PROTOCOL_CHARACTERISTICS  Protocol;
Protocol.ReceiveHandler= recv;
..........
后调NdisRegisterProtocol，
问题（1）我能不能改变recv里接收到的数据？
    （2）怎么改变呢？ :D能发个例子让小弟学习
不胜感激 :D

我也是粘过来的
以前的文章里有
 /////////////////////////////////////////////////////////////////////////////
//// UTILReadOnPacket
//
// Purpose
// Logical read on the packet data in a NDIS_PACKET.
//
// Parameters
//
// Return Value
//
// Remarks
// The purpose of this function is to provide a convenient mechanism to
// read packet data from an NDIS_PACKET that may have multiple chained
// NDIS_BUFFERs.
//
VOID
UTILReadOnPacket(
PNDIS_PACKET Packet,
PUCHAR lpBuffer,
ULONG nNumberOfBytesToRead,
ULONG nOffset, // Byte Offset, Starting With MAC Header
PULONG lpNumberOfBytesRead
)
{
PNDIS_BUFFER CurrentBuffer;
UINT nBufferCount, TotalPacketLength;
PUCHAR VirtualAddress;
UINT CurrentLength, CurrentOffset;
UINT AmountToMove;
*lpNumberOfBytesRead = 0;
if (!nNumberOfBytesToRead)
return;
//
// Query Packet
//
NdisQueryPacket(
(PNDIS_PACKET )Packet,
(PUINT )NULL, // Physical Buffer Count
(PUINT )&nBufferCount, // Buffer Count
&CurrentBuffer, // First Buffer
&TotalPacketLength // TotalPacketLength
);
//
// Query The First Buffer
//
NdisQueryBuffer(
CurrentBuffer,
&VirtualAddress,
&CurrentLength
);
CurrentOffset = 0;
while( nOffset || nNumberOfBytesToRead )
{
while( !CurrentLength )
{
NdisGetNextBuffer(
CurrentBuffer,
&CurrentBuffer
);
// If we\'ve reached the end of the packet. We return with what
// we\'ve done so far (which must be shorter than requested).
if (!CurrentBuffer)
return;
NdisQueryBuffer(
CurrentBuffer,
&VirtualAddress,
&CurrentLength
);
CurrentOffset = 0;
}
if( nOffset )
{
// Compute how much data to move from this fragment
if( CurrentLength > nOffset )
CurrentOffset = nOffset;
else
CurrentOffset = CurrentLength;
nOffset -= CurrentOffset;
CurrentLength -= CurrentOffset;
}
if( nOffset )
{
CurrentLength = 0;
continue;
}
if( !CurrentLength )
{
continue;
}
// Compute how much data to move from this fragment
if (CurrentLength > nNumberOfBytesToRead)
AmountToMove = nNumberOfBytesToRead;
else
AmountToMove = CurrentLength;
// Copy the data.
NdisMoveMemory(
lpBuffer,
&VirtualAddress[ CurrentOffset ],
AmountToMove
);
// Update destination pointer
lpBuffer += AmountToMove;
// Update counters
*lpNumberOfBytesRead +=AmountToMove;
nNumberOfBytesToRead -=AmountToMove;
CurrentLength = 0;
}
}

 :D谢谢你！

哈哈 你写的很难的啊 对我这个新手来说 要多研究一下 :D