Wireshark mailing list archives
Re: Plan to make NPcap available for Wireshark
From: Yang Luo <hsluoyb () gmail com>
Date: Mon, 6 Jul 2015 01:06:18 +0800
Good question, Graham. This is simply because WinPcap has taken the System32\SysWow64 dirs and NPcap wants to coexist with WinPcap. As NPcap has the same file names (wpcap.dll and packet.dll) for compatibility, we just can't put the the-same-name files in the same folder with WinPcap. Though I personally prefer the way to "Make NPcap and WinPcap mutually exclusive" (this needs user softwares like Wireshark and Nmap nothing to change), coexisting way has also its benefits, and finally we chose the latter. Cheers, Yang On Sun, Jul 5, 2015 at 1:28 AM, Graham Bloice <graham.bloice () trihedral com> wrote:
Out of interest why does NPcap not place its DLL's in System32\SysWow64 as that is on the standard DLL search path? On 4 July 2015 at 17:28, Yang Luo <hsluoyb () gmail com> wrote: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 theDLL 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, YangHi 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. ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org ?subject=unsubscribe___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org ?subject=unsubscribe-- Graham Bloice Software Developer Trihedral UK Limited ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org ?subject=unsubscribe
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Current thread:
- Plan to make NPcap available for Wireshark Yang Luo (Jul 03)
- Re: Plan to make NPcap available for Wireshark Pascal Quantin (Jul 04)
- Re: Plan to make NPcap available for Wireshark Yang Luo (Jul 04)
- Re: Plan to make NPcap available for Wireshark Graham Bloice (Jul 04)
- Re: Plan to make NPcap available for Wireshark Yang Luo (Jul 05)
- Re: Plan to make NPcap available for Wireshark Graham Bloice (Jul 05)
- Re: Plan to make NPcap available for Wireshark Yang Luo (Jul 05)
- Re: Plan to make NPcap available for Wireshark Joerg Mayer (Jul 07)
- Re: Plan to make NPcap available for Wireshark Graham Bloice (Jul 07)
- Re: Plan to make NPcap available for Wireshark Yang Luo (Jul 07)
- Re: Plan to make NPcap available for Wireshark Guy Harris (Jul 07)
- Re: Plan to make NPcap available for Wireshark Joerg Mayer (Jul 07)
- Re: Plan to make NPcap available for Wireshark Yang Luo (Jul 07)
- Re: Plan to make NPcap available for Wireshark Yang Luo (Jul 04)
- Re: Plan to make NPcap available for Wireshark Yang Luo (Jul 07)
- Re: Plan to make NPcap available for Wireshark Pascal Quantin (Jul 04)