[sssd PR#5594][opened] AD: read trusted domains from local domain as well (1.16)

[sumit-bose]

   URL: https://github.com/SSSD/sssd/pull/5594
Author: sumit-bose
 Title: #5594: AD: read trusted domains from local domain as well (1.16)
Action: opened

PR body:
"""
Currently SSSD only uses information stored in a domain controller of
the forest root domain to get the names of other trusted domains in the
forest. Depending on how the forest was created the forest root might
not have LDAP objects for all domains in the forest. It looks like a
typical case are child domains of other domains in the forest.

As a start SSSD can now include trusted domains stored in the LDAP tree
of a local domain controller as well. In a long run it would make sense
to allow SSSD to explicitly search for domain by looking up DNS entries
and checking a potential domain controller with a CLDAP ping.

Resolves: #5528
"""

To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/5594/head:pr5594
git checkout pr5594