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If the DNS names of member domains in an AD forest have a parent-child relation ship, e.g. forest.ad, child.forest.ad, grandchild.forest.ad, the LDAP sub-trees in the GC for the child domains are children of the forest root LDAP tree. Hence a subtree search in the forest root tree will find results in the child domains as well.
Since there are user and group names which are present in all AD domains e.g. a search for 'Domain Users' will return multiple matches. Currently this is not expected by the generic SSSD LDAP code and the following can be found in the logs:
(Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_groups_next_base] (0x0400): Searching for groups with base [DC=ad18,DC=ipa18,DC=devel] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x0400): calling ldap_search_ext with [(&(name=domain admins)(objectclass=group)(name=*))][DC=ad18,DC=ipa18,DC=devel]. (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [objectClass] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [name] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [gidNumber] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [member] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [objectGUID] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [objectSID] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [whenChanged] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [uSNChanged] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_step] (0x2000): ldap_search_ext called, msgid = 5 (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_id_op_connect_done] (0x4000): caching successful connection after 1 notifies (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [be_run_unconditional_online_cb] (0x4000): List of unconditional online callbacks is empty, nothing to do. (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_process_result] (0x2000): Trace: sh[0x89ed1a8], connected[1], ops[0x89de5b0], ldap[0x89e28d8] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_process_message] (0x4000): Message type: [LDAP_RES_SEARCH_ENTRY] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_entry] (0x4000): OriginalDN: [CN=Domain Admins,CN=Users,DC=ad18,DC=ipa18,DC=devel]. (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [objectClass] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [member] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [whenChanged] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [uSNChanged] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [name] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [objectGUID] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [objectSid] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_process_result] (0x2000): Trace: sh[0x89ed1a8], connected[1], ops[0x89de5b0], ldap[0x89e28d8] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_process_message] (0x4000): Message type: [LDAP_RES_SEARCH_ENTRY] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_entry] (0x4000): OriginalDN: [CN=Domain Admins,CN=Users,DC=sub,DC=ad18,DC=ipa18,DC=devel]. (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [objectClass] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [whenChanged] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [uSNChanged] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [name] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [objectGUID] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_parse_range] (0x2000): No sub-attributes for [objectSid] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_process_result] (0x2000): Trace: sh[0x89ed1a8], connected[1], ops[0x89de5b0], ldap[0x89e28d8] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_process_message] (0x4000): Message type: [LDAP_RES_SEARCH_RESULT] (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_generic_ext_done] (0x0400): Search result: Success(0), no errmsg set (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_groups_process] (0x0400): Search for groups, returned 2 results. (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_get_groups_process] (0x0080): Individual group search returned multiple results (Thu Nov 14 11:49:39 2013) [sssd[be[ad18.ipa18.devel]]] [sdap_id_op_done] (0x4000): releasing operation connection
This is a similar issue like the one fixed by 022ebf5 but in a different code path.
Fields changed
milestone: NEEDS_TRIAGE => SSSD 1.11.3
Ticket has been cloned to Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1030483
rhbz: => [https://bugzilla.redhat.com/show_bug.cgi?id=1030483 1030483]
owner: somebody => sbose status: new => assigned
patch: 0 => 1
resolution: => fixed status: assigned => closed
changelog: => The AD provider is able to resolve group memberships for groups with Global and Universal scope. The initgroups (get groups for user) operation for users from trusted AD domains was mode reliable by reading the required tokenGroups attribute from LDAP instead of Global Catalog
Metadata Update from @sbose: - Issue assigned to sbose - Issue set to the milestone: SSSD 1.11.3
SSSD is moving from Pagure to Github. This means that new issues and pull requests will be accepted only in SSSD's github repository.
This issue has been cloned to Github and is available here: - https://github.com/SSSD/sssd/issues/3190
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