Wireshark-dev: Re: [Wireshark-dev] Enable monitor mode column in Wireshark GUI for Windows

From: Alexis La Goutte <alexis.lagoutte@xxxxxxxxx>
Date: Sun, 15 May 2016 20:50:01 +0200


On Sun, May 15, 2016 at 7:49 PM, Yang Luo <hsluoyb@xxxxxxxxx> wrote:
Hi Guy,

On Sun, May 15, 2016 at 4:29 AM, Guy Harris <guy@xxxxxxxxxxxx> wrote:
On May 9, 2016, at 9:31 AM, Yang Luo <hsluoyb@xxxxxxxxx> wrote:

> I want to enable monitor mode column for Windows. Based on this post: https://www.wireshark.org/lists/wireshark-dev/201601/msg00002.html, we need to undefine the HAVE_PCAP_OPEN macro when building Wireshark for Windows.

No.

It "means that dumpcap needs to be changed to use those APIs on local adapters if they're available, regardless of whether pcap_open() is available, and to use pcap_open() *only* for remote adapters."

And that's already been done in the master branch.  See caputils/capture-pcap-util.c and caputils/capture-wpcap.c.

I saw these 3 commits as below (I think these are what you mean by "that's already been done in the master branch"?): 

1) Add opiton to configure HAVE_PCAP_CREATE
2) [WINPCAP] First step to be able to use pcap_create()
3) Set both HAVE_PCAP_CREATE and HAVE_PCAP_OPEN.
 
So I think the HAVE_PCAP_CREATE macro has been defined in the source code now?

And from here:

I saw these:
#if defined(HAVE_PCAP_CREATE)
#define SHOW_MONITOR_COLUMN 1
#endif

So SHOW_MONITOR_COLUMN should be also defined in the recent source code after those 3 commits. This should mean that monitor column will show up in the QT and GTK GUI? But in fact, I still didn't see them. I haven't changed the libpcap API in Npcap yet, but I don't think this will affect the monitor mode column?

These commits happen in 7 Jan, and Wireshark 2.0.3 which I use is released on Apr 23. So I think these commits work for 2.0.3.
Why I still didn't see the monitor column?
Hi Yang,

Patches are on "Master" branch and only backport fix on master-2.0 branch.
We need to try a Wireshark 2.1.x (master branch)

Cheers
 

Cheers,
Yang


> As Guy said, it seems that the drawback for this patch is acceptable (losing support of WinPcap 4.1 earlier)

No - on Windows, it "[chooses] whether to use pcap_create() *et al* at run time" - perhaps I didn't want to have to do that at the time, but I eventually did it anyway.
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