Wireshark mailing list archives

Re: Plan to make NPcap available for Wireshark


From: Yang Luo <hsluoyb () gmail com>
Date: Sun, 5 Jul 2015 00:28:46 +0800

Hi Pascal, I hold the same opinion with you, because a user installing
NPcap implies that he wants to use it, I think I will make it this way:)

Cheers,
Yang

On Sat, Jul 4, 2015 at 6:07 PM, Pascal Quantin <pascal.quantin () gmail com>
wrote:


Le 4 juil. 2015 4:26 AM, "Yang Luo" <hsluoyb () gmail com> a écrit :

Hi list,

Given that current Wireshark can't make use of NPcap because of the DLL
search path problem mentioned in
https://www.wireshark.org/lists/wireshark-dev/201506/msg00030.html, I'd
like to make a patch for Wireshark. As it is a security consideration that
Wireshark don't want to search the DLLs in the Windows way. My plan is to
explicitly add the NPcap path to Wireshark's DLL search logic. NPcap uses
the "C:\Windows\System32\NPcap" and "C:\Windows\SysWow64\NPcap" to store
its DLLs (WinPcap uses "C:\Windows\System32" and "C:\Windows\SysWow64"
directly). As it is a sub directory of System32 folder. Its access control
policy is the same with System32, and there should be no security problem I
think. The second question is if WinPcap and NPcap are both available in a
system, which will be loaded first? I'd like to hear your opinions:)

Cheers,
Yang


Hi Yang,

As WinPcap is older and could be installed for other programs, on my side
I would consider NPcap has having higher precedence and be loaded first.

Best regards,
Pascal.

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