On Sun, Jul 27, 2025 at 08:26:03PM -0700, Rick Macklem wrote:
> On Tue, Jul 22, 2025 at 9:00 AM Cy Schubert <cy.schub...@cschubert.com> wrote:
> >
> > CAUTION: This email originated from outside of the University of Guelph. Do 
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> > ith...@uoguelph.ca.
> >
> > In message <ah98inxobigu3...@kib.kiev.ua>, Konstantin Belousov writes:
> > > On Mon, Jul 21, 2025 at 07:46:45AM -0700, Cy Schubert wrote:
> > > > In message <47c3cc37-6f32-4376-900a-b5387b981...@freebsd.org>, Jessica
> > > > Clarke w
> > > > rites:
> > > > > On 21 Jul 2025, at 15:10, Cy Schubert <c...@freebsd.org> wrote:
> > > > > >=20
> > > > > > The branch main has been updated by cy:
> > > > > >=20
> > > > > > URL: =
> > > > > https://cgit.FreeBSD.org/src/commit/?id=3Dc7da9fb90b0b6385e99bb7747476359
> > > b=
> > > > > 712993fa
> > > > > >=20
> > > > > > commit c7da9fb90b0b6385e99bb7747476359b712993fa
> > > > > > Author:     Cy Schubert <c...@freebsd.org>
> > > > > > AuthorDate: 2025-07-19 14:11:18 +0000
> > > > > > Commit:     Cy Schubert <c...@freebsd.org>
> > > > > > CommitDate: 2025-07-21 14:07:22 +0000
> > > > > >=20
> > > > > >    KRB5: Enable MIT KRB5 by default
> > > > > >=20
> > > > > >    Set WITH_MITKRB5=3Dyes as the default.
> > > > > >=20
> > > > > >    Rebuild all USES=3Dgssapi ports is recommended.
> > > > > >=20
> > > > > >    A clean buildworld is required.
> > > > >
> > > > > That=E2=80=99s going to be quite annoying and cause a lot of issues =
> > > > > given
> > > > > WITH_CLEAN is now the default. Can we do something in 
> > > > > depend-cleanup.sh
> > > > > to delete everything from the obj tree that needs to be rebuilt if we
> > > > > detect the wrong kerberos implementation was previously built?
> > > >
> > > > All binaries that depend on any kerberos libraries must be rebuilt.
> > > > WITHOUT_CLEAN will fail at various spots. Meta mode should take care of
> > > > this for us.
> > > Does the statement mean that ABI for the base libraries was broken?
> > > If yes, and the new libs have the same name as the old, we must bump
> > > dso versions.
> >
> > Three new libs have the same names. Most don't. The three with the same
> > names are libkrb5, libgssapi_krb5 and libcom_err.
> >
> > libgssapi_krb5 is a merge of the Heimdal libgssapi_* files. For example,
> > there is no libgssapi_spnego in MIT.
> >
> > The libcom_err contains the same but updated MIT functions.
> >
> > libkrb5 removes Heimdal-only functions.
> >
> > There is no libasn1 nor libroken in MIT.
> >
> > The differences are outlined at https://k5wiki.kerberos.org/wiki/Samba%27s_u
> > se_of_Heimdal_symbols,_with_MIT_differences.
> I know diddly about how libraries are handled, but is it possible to put the
> old Heimdal 1.5.2 libraries somewhere (semi-private) under different names?
> 
> I ask because it is going to be very difficult to port the gssd to the
> new libraries.
> 
> The problem is that the KGSSAPI code assumes some stuff very specific
> to Heimdal. Take a look at sys/kgssapi/krb5/krb5_mech.c and you'll see
> what I mean. (There's code that parses the keys etc out of the internally
> generated tokens. I have no idea where to even find the information on
> how/where the MIT code hides this stuff and it a large part of krb5_mech.c
> looks like it will have to be re-written to work with the MIT libraries.)

It might be better to extract the required bits and keep just them.
Perhaps even moving that bits from vendor to FreeBSD-owned code area.

I do not think that keeping large pieces of code in vendor without updates
is a good plan.

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