Wireshark mailing list archives

Re: Npcap 0.04 call for test


From: Pascal Quantin <pascal.quantin () gmail com>
Date: Mon, 24 Aug 2015 14:03:18 +0200

2015-08-24 13:18 GMT+02:00 Yang Luo <hsluoyb () gmail com>:

Hi Pascal,

I think you would like to add the link types that WinPcap defined but NDIS
doesn't define, see:
https://github.com/wireshark/winpcap/blob/master/Common/Packet32.h from
Line: 76. Comments said that these are "Custom linktype: NDIS doesn't
provide an equivalent". And it seems that Npcap loopback adapter will
continue to use the "NdisMediumNull - DLT_NULL" pair for now.


Thanks for the link Yang, I was not aware of those defines. I also added
them to the patch.

Pascal.




On Mon, Aug 24, 2015 at 7:00 PM, Pascal Quantin <pascal.quantin () gmail com>
wrote:



2015-08-24 12:30 GMT+02:00 Yang Luo <hsluoyb () gmail com>:

Hi Pascal,

On Mon, Aug 24, 2015 at 5:46 PM, Pascal Quantin <
pascal.quantin () gmail com> wrote:



I personally think data returned by OID_GEN_MEDIA_IN_USE should be
identical with the one returned by OID_GEN_MEDIA_SUPPORTED for our loopback
condition based on MSDN explanation, and it's "media" instead of "medium",
so I think the display string should be modified to "Media in use" instead
of "Medium in use".


Media is the plural form of medium. "media supported" could list
several medium, while only one can be in use at a given time. So the
current wording seems OK to me.
Note that I updated the list of enum (so as to support loopback value)
in https://code.wireshark.org/review/#/c/10225/


I knew that media is the plural form of medium:). And I rechecked the
MSDN about OID_GEN_MEDIA_IN_USE  (see:
https://msdn.microsoft.com/en-us/library/windows/hardware/ff569607(v=vs.85).aspx),
it said "*As a query, the OID_GEN_MEDIA_IN_USE OID specifies a complete
list of the media types that the NIC currently uses.*". So I think that
in Microsoft' point of view, "multiple" media can be in use at a given time
(this looks weird for me too). But in practice, I didn't see "multiple"
media are ever returned on the OID_GEN_MEDIA_IN_USE or
OID_GEN_MEDIA_SUPPORTED request.


I amended https://code.wireshark.org/review/#/c/10225/ with the rename.



Cheers,
Yang



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