Wireshark · Wireshark-dev: Re: [Wireshark-dev] how to open a HANDLE with a WiFi card

[Guy Harris <guy@xxxxxxxxxxxx>]

On Jun 18, 2009, at 4:43 PM, Joshua (Shiwei) Zhao wrote:

> With Wireshark, I'm trying to modify it to send NDIS requests to a  
> wifi card driver on windows OS.

Ideally, Wireshark shouldn't do that; all operations on capture  
devices should be done through libpcap/WinPcap.

However, as not all the functionality that Wireshark can use is yet  
implemented by libpcap/WinPcap APIs, sometimes Wireshark has to  
implement that itself.  What is it you're trying to do?

> To do this I need to call CreateFile() and pass a string of device  
> name to it.

That's not necessarily the case.

See, for example, gtk/capture_if_details_dlg_win32.c, which makes  
calls to wpcap_packet_request_uint() to fetch various statistics and  
other information about a network adapter.  It calls wpcap_packet_open 
() to get a lower-level handle on the device.

Those routines are in capture_wpcap_packet.c, which provides access to  
the Packet Driver API in Winpcap; the routines from that file might be  
sufficient to do what you want.