Full_Name: Hallvard B Furuseth
Submission from: (NULL) (22.214.171.124)
Submitted by: hallvard
slapd.conf(5)'s moduleload description should say which filename a
module has: foo.so or foo.la. (Or worse - is that different on
different OSes? Windows, anyone?)
"foo.la" will work on all platforms. The actual shared object that the .la
file points to may have different naming conventions on different platforms.
It should say where the standard installed modules are found.
Also that is a default modulepath which as far as I can tell from
strace includes the standard installation directory and the system
loader's standard load path. And again, is it OS-dependent? It
uses libtool's lt_dlopenext(), I haven't looked for what it does yet.
I would expect that of course yes, the system loader's standard path is
slapd.plugin(5) should mention that slapi itself is a module which
may need to be loaded. And that it's "slapi.la", not
The chain and distproc overlays are not found in<overlay>.la
back_ldap.la. This should be documented. I suggest a "moduleload
back_ldap.la" statement before all the other directives, with
However, even if documented, people will miss that. One does't look
for doc about what one already "knows".
The simplest and maybe most informative fix would be to add dummy
modules which simply give an error message that the overlays are found
in the back_ldap module.
When the software knows exactly what must be done, failing with an error
message is just annoying. If we were to do anything here at all, dummy modules
would better be replaced by symlinks to the actual module, so that It Just
Works. But I think just noting the discrepancy in the documentation is sufficient.
An alternative would be to move them to separate modules which depend
back-ldap - and document their dependency on back-ldap. More correct I
guess, but personally I don't see how it's an improvement. That might
just be because I have had little to do with maintaining binary
I don't think it's an improvement either.
A third would be to store a module registry where module names are
mapped to one or more module filenames to load. Overkill? More
general, but also more complex.
Yes, overkill. And there are probably more modules out there than we would
ever know about for a registry, so ultimately not useful.
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/