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郁闷的数据包接收问题
作者:Gmxp 日期:2009-01-09
昨天写好框架的NDIS协议驱动，不管我怎么处理，就是死活收不到下层网卡的数据包。
这个东东折磨了我整整一天，让人郁闷的是这个问题本来不应该是问题的。下面贴出相关DDK的文档，标记一下，更希望遇到和我同样的朋友早点解脱。囧。
引用内容
Restrictions on Indicating Receive Packets
A connectionless miniport driver must not indicate a receive packet to a protocol driver while the miniport driver’s packet filter for that protocol driver is set to zero. When a miniport driver’s MiniportInitialize function is called, the miniport driver’s packet filter should be set to zero. When the packet filter is zero, receive indications are disabled. After a miniport driver’s MiniportInitialize function has returned, a protocol driver can set OID_GEN_CURRENT_PACKET_FILTER to a nonzero value, thereby enabling the miniport driver to indicate receive packets to that protocol.
......
A driver’s Protocol(Co)ReceivePacket or ProtocolReceive function can be called as soon as the protocol sets up a packet filter with OID_GEN_CURRENT_PACKET_FILTER for the binding. For the NULL filter, receive indications are enabled on return from a successful call to NdisOpenAdapter.
翻译成中文，大概就是在绑定完下层网卡后，必须向它发送一个OID_GEN_CURRENT_PACKET_FILTER的Request来指定要接收的数据包的类型，而不发送Request的话，默认是不接收任何数据包。自己向下层网卡正确发送完Request后，就可以收到你想要的数据包了。
让人很郁闷的是，对于协议驱动这么重要的步骤，DDK中仅仅在一个“很角落”的地方提到，而我正在看的网络驱动的那本书更是只字不提，把WinPcap的协议驱动翻了个遍也没有特别提及，网络上更加没有相关消息，似乎大家都认为只要绑定网卡成功就能收到数据了。
这个东东折磨了我整整一天，让人郁闷的是这个问题本来不应该是问题的。下面贴出相关DDK的文档，标记一下，更希望遇到和我同样的朋友早点解脱。囧。
引用内容Restrictions on Indicating Receive Packets
A connectionless miniport driver must not indicate a receive packet to a protocol driver while the miniport driver’s packet filter for that protocol driver is set to zero. When a miniport driver’s MiniportInitialize function is called, the miniport driver’s packet filter should be set to zero. When the packet filter is zero, receive indications are disabled. After a miniport driver’s MiniportInitialize function has returned, a protocol driver can set OID_GEN_CURRENT_PACKET_FILTER to a nonzero value, thereby enabling the miniport driver to indicate receive packets to that protocol.
......
A driver’s Protocol(Co)ReceivePacket or ProtocolReceive function can be called as soon as the protocol sets up a packet filter with OID_GEN_CURRENT_PACKET_FILTER for the binding. For the NULL filter, receive indications are enabled on return from a successful call to NdisOpenAdapter.
翻译成中文，大概就是在绑定完下层网卡后，必须向它发送一个OID_GEN_CURRENT_PACKET_FILTER的Request来指定要接收的数据包的类型，而不发送Request的话，默认是不接收任何数据包。自己向下层网卡正确发送完Request后，就可以收到你想要的数据包了。
让人很郁闷的是，对于协议驱动这么重要的步骤，DDK中仅仅在一个“很角落”的地方提到，而我正在看的网络驱动的那本书更是只字不提，把WinPcap的协议驱动翻了个遍也没有特别提及，网络上更加没有相关消息，似乎大家都认为只要绑定网卡成功就能收到数据了。
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>,<！ 
就是應該特別標志出來嘛，不然怎麼看到嘛，我就找不到了…
Gmxp 回复
就是應該特別標志出來嘛，不然怎麼看到嘛，我就找不到了… Gmxp 回复~
剛放假回家幾天，居然更新了沒有坐到沙發嗚嗚，但是學長來要讓給學長坐嘛~小妮子先搬個板凳再慢慢看文章哦~ 
呵呵，WinPcap里就有啊
Gmxp 回复
Gmxp 回复以我的理解，这么重要的步骤应该特别标志出来- -
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好像是这页...呵呵