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DescriptionAlexander Bokovoy
2019-08-23 09:26:37 UTC
In RHEL 7.8-devel, ipasam module from FreeIPA is built against Samba 4.9.1. It doesn't work against Samba 4.10 which is a rebase in RHEL 7.8:
[2019/08/23 05:09:42.615616, 5, pid=31083, effective(0, 0), real(0, 0), class=passdb] ../../source3/passdb/pdb_interface.c:155(make_pdb_method_name)
Attempting to find a passdb backend to match ipasam:ldapi://%2fvar%2frun%2fslapd-IPAEXAMPLE-TEST.socket (ipasam)
[2019/08/23 05:09:42.615634, 2, pid=31083, effective(0, 0), real(0, 0), class=passdb] ../../source3/passdb/pdb_interface.c:161(make_pdb_method_name)
No builtin backend found, trying to load plugin
[2019/08/23 05:09:42.615648, 5, pid=31083, effective(0, 0), real(0, 0)] ../../lib/util/modules.c:160(load_module_absolute_path)
load_module_absolute_path: Probing module '/usr/lib64/samba/pdb/ipasam.so'
[2019/08/23 05:09:42.620596, 5, pid=31083, effective(0, 0), real(0, 0)] ../../lib/util/modules.c:49(load_module)
Error loading module '/usr/lib64/samba/pdb/ipasam.so': /usr/lib64/samba/pdb/ipasam.so: undefined symbol: DEBUGLEVEL_CLASS
[2019/08/23 05:09:42.620641, 0, pid=31083, effective(0, 0), real(0, 0), class=passdb] ../../source3/passdb/pdb_interface.c:171(make_pdb_method_name)
No builtin nor plugin backend for ipasam found
FreeIPA ipasam module uses DEBUG() macro from Samba which included DEBUGLEVEL_CLASS variable in Samba < 4.10. It was renamed to dbgc_config:
commit 3b293c669024e55d2c5343e85f1f43a03682b478
Author: Ralph Boehme <slow>
Date: Wed Dec 12 22:19:06 2018 +0100
debug: rename DEBUGLEVEL_CLASS variable to dbgc_config
Variable names should not be given in uppercase.
Signed-off-by: Ralph Boehme <slow>
Reviewed-by: Jeremy Allison <jra>
$ git tag --contains 3b293c669024e55d2c5343e85f1f43a03682b478|grep samba
samba-4.10.0
samba-4.10.0rc1
samba-4.10.0rc2
samba-4.10.0rc3
samba-4.10.0rc4
samba-4.10.1
samba-4.10.2
samba-4.10.3
samba-4.10.4
samba-4.10.5
samba-4.10.6
samba-4.11.0rc1
As result, binary compatibility is broken and ipa package needs to be rebuilt against Samba 4.10, also raising dependencies.
Comment 2Alexander Bokovoy
2019-08-23 09:53:51 UTC
Verification is sanity-only:
For incorrect version the following will be true:
$ pdbedit -s /dev/null -b ipasam -d5 |grep Error
Can't initialize passdb backend.
Error loading module '/usr/lib64/samba/pdb/ipasam.so': /usr/lib64/samba/pdb/ipasam.so: undefined symbol: DEBUGLEVEL_CLASS
For fixed version there should be no 'Error loading module' message.
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, 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-2020:1083
In RHEL 7.8-devel, ipasam module from FreeIPA is built against Samba 4.9.1. It doesn't work against Samba 4.10 which is a rebase in RHEL 7.8: [2019/08/23 05:09:42.615616, 5, pid=31083, effective(0, 0), real(0, 0), class=passdb] ../../source3/passdb/pdb_interface.c:155(make_pdb_method_name) Attempting to find a passdb backend to match ipasam:ldapi://%2fvar%2frun%2fslapd-IPAEXAMPLE-TEST.socket (ipasam) [2019/08/23 05:09:42.615634, 2, pid=31083, effective(0, 0), real(0, 0), class=passdb] ../../source3/passdb/pdb_interface.c:161(make_pdb_method_name) No builtin backend found, trying to load plugin [2019/08/23 05:09:42.615648, 5, pid=31083, effective(0, 0), real(0, 0)] ../../lib/util/modules.c:160(load_module_absolute_path) load_module_absolute_path: Probing module '/usr/lib64/samba/pdb/ipasam.so' [2019/08/23 05:09:42.620596, 5, pid=31083, effective(0, 0), real(0, 0)] ../../lib/util/modules.c:49(load_module) Error loading module '/usr/lib64/samba/pdb/ipasam.so': /usr/lib64/samba/pdb/ipasam.so: undefined symbol: DEBUGLEVEL_CLASS [2019/08/23 05:09:42.620641, 0, pid=31083, effective(0, 0), real(0, 0), class=passdb] ../../source3/passdb/pdb_interface.c:171(make_pdb_method_name) No builtin nor plugin backend for ipasam found FreeIPA ipasam module uses DEBUG() macro from Samba which included DEBUGLEVEL_CLASS variable in Samba < 4.10. It was renamed to dbgc_config: commit 3b293c669024e55d2c5343e85f1f43a03682b478 Author: Ralph Boehme <slow> Date: Wed Dec 12 22:19:06 2018 +0100 debug: rename DEBUGLEVEL_CLASS variable to dbgc_config Variable names should not be given in uppercase. Signed-off-by: Ralph Boehme <slow> Reviewed-by: Jeremy Allison <jra> $ git tag --contains 3b293c669024e55d2c5343e85f1f43a03682b478|grep samba samba-4.10.0 samba-4.10.0rc1 samba-4.10.0rc2 samba-4.10.0rc3 samba-4.10.0rc4 samba-4.10.1 samba-4.10.2 samba-4.10.3 samba-4.10.4 samba-4.10.5 samba-4.10.6 samba-4.11.0rc1 As result, binary compatibility is broken and ipa package needs to be rebuilt against Samba 4.10, also raising dependencies.