[Spice-devel] Webdav on Windows XP

[Koopa Koopa]

On 7/31/20, Frediano Ziglio <fziglio at redhat.com> wrote:
>> On 7/31/20, Victor Toso <victortoso at redhat.com> wrote:
>> > Hi,
>> >
>> > On Thu, Jul 30, 2020 at 01:38:54PM -0400, Koopa Koopa wrote:
>> >> On 7/30/20, Frediano Ziglio <fziglio at redhat.com> wrote:
>> >> >>
>> >> >> Hi all,
>> >> >>
>> >> >> I'm trying to setup a Windows XP SP3 virtual machine with SPICE
>> >> >> folder
>> >> >> sharing. The latest version, v2.4, fails to install, as the
>> >> >> spice-webdavd service fails to start. Running spice-webdavd.exe
>> >> >> manually yields the error message "The procedure entry point
>> >> >> AcquireSRWLockExclusive could not be located in the dynamic link
>> >> >> library KERNEL32.dll", which seems to be a deficiency in using XP
>> >> >> [1].
>> >> >> After some digging, I've determined that the cause of this is that,
>> >> >> when starting the service, spice-webdavd calls g_mutex_lock from
>> >> >> Glib
>> >> >> [2], which had XP support removed a couple of years ago [3].
>> >> >>
>> >> >> Version v2.2, which comes from before the Glib change was made,
>> >> >> successfully installs and runs. I have been able to map and
>> >> >> somewhat
>> >> >> use a network drive mapped to the share, but it has broken and I
>> >> >> can't
>> >> >> seem to get it working again; Windows just says that "The network
>> >> >> path
>> >> >> http://localhost:9843 could not be found." Strangely enough, when
>> >> >> going to that address in Mypal, the share directory is displayed
>> >> >> without any issues, and I can browse it.
>> >> >>
>> >> >
>> >> > The purpose of spice-webdavd is to provide the port to be able to
>> >> > use
>> >> > webdav from the guest. If another program is able to use it I would
>> >> > try to understand why Windows cannot.
>> >> >
>> >> > Just to confirm, using netstat in the guest can you see the port
>> >> > (9843)
>> >> > in listening state?
>> >>
>> >> Yep, that port is in the listening state.
>> >>
>> >> > Is the Windows XP service running?
>> >>
>> >> Yes, it is, and I have tried restarting it.
>> >>
>> >> In further testing, the share works perfectly fine with the free
>> >> BitKinex client, but I still can't get it to work again as a mapped
>> >> drive in Windows at all. Since it continues to work without any issues
>> >> in the 3rd party programs I have tried, I'm inclined to believe that
>> >> the issue is not at all with spice-webdavd. It seems like either an XP
>> >> bug or misconfiguration of my (clean) installation. In any case, I'm
>> >> exploring other options for host/guest file sharing, as I can't seem
>> >> to resolve this.
>> >
>> > Sorry if I missed in case you have done it before, but I think
>> > you have to run the map-drive.bat script
>> >
>> > 	https://gitlab.gnome.org/GNOME/phodav/-/blob/master/bin/map-drive.bat
>>
>> Ah, yeah, I forgot to mention that script. For the short period of
>> time in which the share was working, I had gotten it to work by
>> manually adding it to File Explorer. That is, I tried running the
>> script, got error 67, and then successfully added the share from the
>> File Explorer GUI right after. The script - or, rather, the command
>> "net use * http://localhost:9843", seems to always give:
>>
>>   System error 67 occurred.
>>
>>   The network name cannot be found.
>>
>> When setting up spice-webdavd with Windows 10, I've had this error
>> occur in cases when the service is not running. In this case, though,
>> the service definitely is running, and SPICE is responding to
>> http://localhost:9843 in browsers in the guest.
>>
>> >
>> >> >> If this configuration is not supported, I totally understand. Part
>> >> >> of
>> >> >> why I want to point this out is so that, at the very least, this
>> >> >> incompatibility could be added to the Spice User Manual [4].
>> >> >> Thanks!
>> >> >>
>> >> >
>> >> > I would avoid it, Microsoft stopped supporting XP more than 6 years
>> >> > ago. Windows XP is abandonware.
>> >>
>> >> Yeah, I have a Windows 10 VM that I use for most things, it's just
>> >> that I have a program which requires Windows XP in order to function.
>> >
>> > :)
>> >
>>
>>
>
> Being abandonware is difficult to find old updates and fixes.
> You can try
> https://download.cnet.com/Software-Update-for-Web-Folders-KB907306/3000-2064_4-10753425.html
> ?

This does not seem to fix the issue. In further research, I have found
a couple [1] [2] of support threads that very closely match my issue.
The Server Fault thread makes me think that this is a bug in Windows
XP, and that this issue is very unrelated to spice-webdavd, as it has
the same issues I'm having, without any virtualization. Since I *did*
have it working once, and then never again, I may try with an install
of XP without updates, for troubleshooting purposes. If that doesn't
yield any results, if the struggles of that person from 2011 are any
indication, this may be a lost cause for XP ;)

[1] https://serverfault.com/q/308781
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1733947

>
> Frediano
>
>