关于包描述符的问题！！！那位大吓能帮帮我呢？？

我在PtReceive中对我得到的包进行了修改，然后想吧这个数据包发送出去，我使用了下面设置包的过程，可是总是不正确！！不知道为什么？？？？
PUCHAR pPacketContent;
............
............

SendTempPacket=(PNDIS_PACKET)pPacketContent;
// 在包池中分配包描述符
NdisDprAllocatePacket(&Status, &SendPacket, pAdapt->RecvPacketPoolHandle);
if (Status == NDIS_STATUS_SUCCESS)
{
// 在缓冲池中分配缓冲描述符，将包描述符与缓冲描述符关联。
NdisAllocateBuffer(&Status, &pPacketBuffer, pAdapt->RecvBufferPoolHandle, pPacketContent, PacketLen);
NdisChainBufferAtFront(SendPacket, pPacketBuffer);

Rsvd = (PRSVD)(SendPacket->ProtocolReserved);
Rsvd->OriginalPkt = SendTempPacket;
SendPacket->Private.Head->Next =NULL;//把buffer的链接下一个指针置0，即设置发送链表只有一个buffer元素
SendPacket->Private.Tail =NULL;//把Tail指针也置0

Rsvd = (PRSVD)(SendPacket->ProtocolReserved);
Rsvd->OriginalPkt = SendTempPacket;
SendPacket->Private.Flags = SendTempPacket->Private.Flags;
SendPacket->Private.Head = SendTempPacket->Private.Head;
SendPacket->Private.Tail = SendTempPacket->Private.Tail;
NdisSetPacketFlags(SendPacket, NDIS_FLAGS_DONT_LOOPBACK);//设置Flags

NdisMoveMemory(NDIS_OOB_DATA_FROM_PACKET(SendPacket),NDIS_OOB_DATA_FROM_PACKET(SendTempPacket),sizeof(NDIS_PACKET_OOB_DATA));
NdisIMCopySendPerPacketInfo(SendPacket, SendTempPacket);

NDIS_GET_PACKET_MEDIA_SPECIFIC_INFO(SendTempPacket, &MediaSpecificInfo, &MediaSpecificSize);
if_need_free=1; //标志置1，已经分配了内存，需要释放

NdisSend(&Status,pAdapt->BindingHandle,SendPacket);
if (Status!=NDIS_STATUS_PENDING)
{
DbgPrint("Status!=NDIS_STATUS_PENDING");
if (if_need_free==1)
{
NdisUnchainBufferAtFront(SendPacket,&pPacketBuffer);
NdisQueryBufferSafe(pPacketBuffer,&virtualaddress,&virtuallength,32);
NdisFreeBuffer(pPacketBuffer);
if_need_free=2;
}
NdisIMCopySendCompletePerPacketInfo(SendTempPacket,SendPacket);
NdisFreePacket(SendPacket);
}

}

[编辑 -  11/19/04 by  zgc7622]

请问，你是在tdi还是在 intermediate
？？