Re: Kerberos support broken on MSVC builds for Windows x64?

Greetings,

* Dave Page (dpage(at)pgadmin(dot)org) wrote:
> On Tue, Sep 1, 2020 at 5:29 PM Stephen Frost <sfrost(at)snowman(dot)net> wrote:
> > * Dave Page (dpage(at)pgadmin(dot)org) wrote:
> > > Attached is a patch against 12.4 for the build system in case anyone
> > wants
> > > to play (I'll do it properly against the head branch later). I'm guessing
> > > this will work for < 12, as with 12 I'm now getting the following which
> > > looks like it's related to GSS encryption:
> > >
> > > "C:\Users\dpage\Downloads\postgresql-12.4\pgsql.sln" (default target)
> > (1) ->
> > > "C:\Users\dpage\Downloads\postgresql-12.4\pgcrypto.vcxproj" (default
> > > target) (2) ->
> > > "C:\Users\dpage\Downloads\postgresql-12.4\postgres.vcxproj" (default
> > > target) (3) ->
> > > (Link target) ->
> > > be-secure-gssapi.obj : error LNK2019: unresolved external symbol setenv
> > > referenced in function secure_open_gssapi
> > > [C:\Users\dpage\Downloads\postgresql-12.4\postgres.vcxproj]
> > > .\Release\postgres\postgres.exe : fatal error LNK1120: 1 unresolved
> > > externals [C:\Users\dpage\Downloads\postgresql-12.4\postgres.vcxproj]
> > >
> > > I'll dig into that some more.
> >
> > Yes, that'd be in the GSSENC code, which I hadn't been expecting to be
> > used under Windows. If you're successful, I don't have any issue
> > helping to make that work, though I'm curious if you're trying to build
> > with MIT KfW (which is rather ancient these days, being based on krb5
> > 1.13 and not updated since..) or with a more current release...?
>
> I'm currently using the KFW 4.1 build from MIT. I've tried building it
> myself but it requires a very old toolchain (which defeated the point of
> what I was trying to do at the time).

> I haven't yet looked to see if the source for krb5-1.8.2 will build or even
> has the right bits in it for Windows - as I'm sure you know MIT seem to
> maintain an entirely different version for Windows for which I assume
> there's a reason.

I'm a bit confused as to why you'd consider trying 1.8.2- did you mean
1.18.2 there, perhaps..? That's what I would think to try, since, as I
understand it from following the Kerberos Dev list (which is pretty
responsive...) has been updated to work with newer Windows build
toolchains.

> > Of course, it'd be good to get a buildfarm animal in place that's
> > actually testing this if we're going to make it work.
>
> Fixing the config on hamerkop should deal with that I think. Though I am
> confused as to why the Buildfarm UI thinks it has Kerberos support enabled
> - did we change the config parameter from krb5 to gss some time prior to
> 9.5? If so, that could explain it.

Looks to be run by SRA OSS.. Perhaps reaching out to them to ask about
it would help?

> > Regarding the setenv() call, should be able to use pgwin32_putenv() in
> > place on Windows, I'd think..?
>
> Right, I imagine so. It's on my todo...

Alright.

Thanks,

Stephen