Wireshark-dev: Re: [Wireshark-dev] Adding interface to wpcap/libpcap for sending packets to Rx
From: Yang Luo <[email protected]>
Date: Thu, 14 Jan 2016 23:41:47 +0800
Hi Guy,

On Thu, Jan 14, 2016 at 2:00 AM, Guy Harris <[email protected]> wrote:

On Jan 13, 2016, at 8:16 AM, Yang Luo <[email protected]> wrote:

> I want to implement a feature that Npcap can send packets to Rx (receive path) instead of the current Tx (send path).

What do you mean by "send packets to the receive path"?

Does that mean that a packet "sent" to the receive path is *not* transmitted on the network interface, but, instead, appears as if it were a packet that had arrived on that interface (and is processed by the Windows networking stack)?

Yes, this is exactly what I want.

If so, then...

> I know how to implement this in the driver layer. But I don't know how to add this interface to wpcap.dll. I don't want to change too much like adding a function call. What's the best practice to do this? Thanks.

...it is *completely unrelated* to anything libpcap/WinPcap currently does, and therefore *should* be done with a new function call.

I admit injecting packets into the receive path is a bit weird, but there's a guy asking for an adapter forwarding function, and I believe adding such a injecting means is a solution for him. Maybe there's a better way to do this job. I will forward his mail here.

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