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Description of problem:
For all user and group related calls in libsss_nss_idmap it is possible the indicate if the given argument should related to a user or a group. The only exception is sss_nss_getorigbyname() which might cause issues since in POSIX the user and group namespaces are separate and it is possible that there is a group with the same name as the user and this group is not a user-private group and should be handled as independent object.

Adding sss_nss_getorigbyusername() and sss_nss_getorigbygroupname() similar to e.g. sss_nss_getsidbyuid() and sss_nss_getsidbygid(), should be the straight forward solution.

There is already https://bugzilla.redhat.com/show_bug.cgi?id=2062379 so that that IPA extdom plugin can make use of the new calls if available.

Upstream PR: https://github.com/SSSD/sssd/pull/6043

Pushed PR: https://github.com/SSSD/sssd/pull/6043

* `master`
    * 9c5632dfaf67d538727b258f0f4971cf6a7e52c0 - nss: add sss_nss_getorigbyusername and sss_nss_getorigbygroupname

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (sssd bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:7739