SSSD 1.13.4

Highlights

  • The IPA sudo provider was reimplemented. The new version reads the data from IPA’s LDAP tree (as opposed to the compat tree populated by the slapi-nis plugin that was used previously). The benefit is that deployments which don’t require the compat tree for other purposes, such as support for non-SSSD clients can disable those autogenerated LDAP trees to conserve resources that slapi-nis otherwise requires. There should be no visible changes to the end user.
  • SSSD now has the ability to renew the machine credentials (keytabs) when the ad provider is used. Please note that a recent version of the adcli (0.8 or newer) package is required for this feature to work.
  • The automatic ID mapping feature was improved so that the administrator is no longer required to manually set the range size in case a RID in the AD domain is larger than the default range size
  • A potential infinite loop in the NFS ID mapping plugin that was resulting in an excessive memory usage was fixed
  • Clients that are pinned to a particular AD site using the ad_site option no longer communicate with DCs outside that site during service discovery.
  • The IPA identity provider is now able to resolve external (typically coming from a trusted AD forest) group members during get-group-information requests. Please note that resolving external group memberships for AD users during the initgroup requests used to work even prior to this update. This feature is mostly useful for cases where an IPA client is using the compat tree to resolve AD trust users.
  • The IPA ID views feature now works correctly even for deployments without a trust relationship. Previously, the subdomains IPA provider failed to read the views data if no master domain record was created on the IPA server during trust establishment.
  • A race condition in the client libraries between the SSSD closing the socket as idle and the client application using the socket was fixed. This bug manifested with a Broken Pipe error message on the client.
  • SSSD is now able to resolve users with the same usernames in different OUs of an AD domain
  • The smartcard authentication now works properly with gnome-screensaver

Packaging Changes

  • The krb5.include.d directory is now owned by the sssd user and packaged in the krb5-common subpackage

Documentation Changes

  • A new option ldap_idmap_helper_table_size was added. This option can help tune allocation of new ID mapping slices for AD domains with a high RID values. Most deployments can use the default value of this option.
  • Several PAM services were added to the lists that are used to map Windows logon services to GNU/Linux PAM services. The newly added PAM services include login managers (lightdm, lxdm, sddm and xdm) as well as the cockpit service.
  • The AD machine credentials renewal task can be fine-tuned using the ad_machine_account_password_renewal_opts to change the initial delay and period of the credentials renewal task. In addition, the new ad_maximum_machine_account_password_age option allows the administrator to select how old the machine credential must be before trying to renew it.
  • The administrator can use the new option pam_account_locked_message to set a custom informational message when the account logging in is locked.

Tickets Fixed

#1041
[RFE] Support Automatic Renewing of Kerberos Host Keytabs
#1108
[RFE] SUDO: Support the IPA schema
#2188
automatically assign new slices for any AD domain
#2522
[RFE] IPA: resolve external group memberships of IPA groups during getgrnam and getgrgid
#2626
Retry EPIPE from clients
#2764
the colondb intreface has no unit tests
#2765
ad_site parameter does not work
#2785
incompatibility between sparkleshare and sss_ssh_knownhostsproxy due to setlocale()
#2791
sssd dereference processing failed : Input/output error
#2829
collapse_srv_lookups frees fo_server structure that is returned by fail over API
#2839
Allow SSSD to notify user of denial due to AD account lockout
#2849
cache_req: don’t search override values in LDAP when using LOCAL view
#2865
sssd_nss memory usage keeps growing on sssd-1.12.4-47.el6.x86_64 (RHEL6.7) when trying to retrieve non-existing netgroups
#2881
MAN: Clarify that subdomains always use service discovery
#2888
SRV lookups with id_provider=proxy and auth_provider=krb5
#2899
[sssd] Trusted (AD) user’s info stays in sssd cache for much more than expected.
#2902
Review and update wiki pages for 1.13.4
#2904
sssd_be AD segfaults on missing A record
#2906
Cannot retrieve users after upgrade from 1.12 to 1.13
#2909
extreme memory usage in libnfsidmap sss.so plug-in when resolving groups with many members
#2910
sssd mixup nested group from AD trusted domains
#2912
refresh_expired_interval stops sss_cache from working
#2917
Properly remove OriginalMemberOf attribute in SSSD cache if user has no secondary groups anymore
#2922
ID mapping - bug in computing max id for slice range
#2925
Add gnome-screensaver to the list of PAM services considered for Smartcard authentication
#2931
Warn if user cannot read krb5.conf
#2934
After removing certificate from user in IPA and even after sss_cache, FindByCertificate still finds the user
#2937
sss_obfuscate: SyntaxError: Missing parentheses in call to ‘print’
#2938
Cannot start sssd after switching to non-root
#2959
The delete operation of the memberof plugin allocates memory on NULL context
#2960
IPA view: view name not stored properly with default FreeIPA installation
#2961
Initgroups in AD provider might fail if user is stored in a non-default ou
#2962
GPO: Access denied in non-root mode
#2964
GPO: Access denied after blocking connection to AD.
#2969
sudorule not working with ipa sudo_provider on older freeipa
#2970
sudo smart refresh does not work correctly on openldap
#2971
SSSD PAM module does not support multiple password prompts (e.g. Password + Token) with sudo
#2972
IPA sudo: support the externalUser attribute
#2980
sssd_be[11010]: segfault at 0 ip 00007ff889ff61bb sp 00007ffc7d66a3b0 error 4 in libsss_ipa.so[7ff889fcf000+5d000]
#2989
local overrides: issues with sub-domain users and mixed case names

Detailed Changelog

Dan Lavu (1):

  • PAM: Fix man for pam_account_{expired,locked}_message

David Disseldorp (1):

  • build: detect endianness at configure time

Jakub Hrozek (17):

  • Upgrading the version for the 1.13.4 release
  • SDAP: Make it possible to silence errors from dereference
  • Add a new option ldap_group_external_member
  • IPA: Add interface to call into IPA provider from LDAP provider
  • LDAP: Use the IPA provider interface to resolve external group members
  • FO: Don’t free rc-allocated structure
  • tests: Reduce failover code duplication
  • FO: Use refcount to keep track of servers returned to callers
  • FO: Use tevent_req_defer_callback() when notifying callers
  • memberof: Don’t allocate on a NULL context
  • tests: Add a unit test for the external groups resolution
  • MAN: Remove duplicate description of the pam_account_locked_message option
  • AD: Recognize Windows Server 2016
  • memberof: Fix a memory leak when removing ghost users
  • memberof: Don’t allocate on NULL when deleting memberUids
  • tests: Check NULL context in sysdb-tests when removing group members
  • Updating translations for the 1.13.4 release

Lukas Slebodnik (33):

  • SPEC: Change package ownership of %{pubconfpath}/krb5.include.d
  • CONFIGURE: Replace obsoleted macro AC_PROG_LIBTOOL
  • TESTS: Fix race condition in python test
  • PYTHON: sss_obfuscate should work with python3
  • PYTHON: Fix pep8 errors in sss_obfuscate
  • UTIL: Backport error code ERR_ACCOUNT_LOCKED
  • sss_idmap-tests: Fix segmentation fault
  • krb5_child: Warn if user cannot read krb5.conf
  • Fix typos reported by lintian
  • UTIL: Use prefix for debug function
  • UTIL: Provide varargs version of debug_fn
  • UTIL: Use sss_vdebug_fn for callbacks
  • Revert “DEBUG: Preventing chown_debug_file if journald on”
  • DEBUG: Ignore ENOENT for change owner of log files
  • TOOLS: Fix minor memory leak in sss_colondb_writeline
  • CI: Use yum-deprecated instead of dnf
  • FAIL_OVER: Fix warning value computed is not used
  • UTIL: Fix indentation in dlinklist.h
  • UTIL: Fix warning misleading-indentation
  • CLIENT: Reduce code duplication
  • CLIENT: Retry request after EPIPE
  • UTIL: Move debug part from util.h -> new debug.h
  • UTIL: Allow to append new line in sss_vdebug_fn
  • AUTOMAKE: Force usage of parallel test harness
  • CI: Use make check instead of make-check-wrap
  • test_ipa_subdom_server: Workaround for slow krb5 + SELinux
  • SPEC: Run extra unit tests with epel
  • GPO: Soften umask in gpo_child
  • GPO_CHILD: Create directories in gpo_cache with right permissions
  • GPO: Process GPOS in offline mode if ldap search failed
  • IPA: Check RDN in ipa_add_ad_memberships_get_next
  • dp_ptask: Fix memory leak in synchronous ptask
  • test_be_ptask: Check leaks in tests

Michal Židek (6):

  • NSS: do not skip cache check for netgoups
  • util: Continue if setlocale fails
  • server_setup: Log failed attempt to set locale
  • tests: Run intgcheck without libsemanage
  • tests: Regression test with wrong LC_ALL
  • GPO: log specific ini parse error messages

Pavel Březina (37):

  • AD SRV: prefer site-local DCs in LDAP ping
  • SDAP: do not fail if refs are found but not processed
  • SDAP: Add request that iterates over all search bases
  • SDAP: rename sdap_get_id_specific_filter
  • SDAP: support empty filters in sdap_combine_filters()
  • SUDO: use sdap_search_bases instead custom sb iterator
  • SUDO: make sudo sysdb interface more reusable
  • SUDO: move code shared between ldap and ipa to separate module
  • SUDO: allow to disable ptask
  • SUDO: fail on failed request that cannot be retry
  • IPA: add ipa_get_rdn and ipa_check_rdn
  • SDAP: use ipa_get_rdn() in nested groups
  • IPA SUDO: choose between IPA and LDAP schema
  • IPA SUDO: Add ipasudorule mapping
  • IPA SUDO: Add ipasudocmdgrp mapping
  • IPA SUDO: Add ipasudocmd mapping
  • IPA SUDO: Implement sudo handler
  • IPA SUDO: Implement full refresh
  • IPA SUDO: Implement rules refresh
  • IPA SUDO: Remember USN
  • SDAP: Add sdap_or_filters
  • IPA SUDO: Implement smart refresh
  • SUDO: sdap_sudo_set_usn() do not steal usn
  • SUDO: remove full_refresh_in_progress
  • SUDO: assume zero if usn is unknown
  • SUDO: allow disabling full refresh
  • SUDO: remember usn as number instead of string
  • SUDO: simplify usn filter
  • IPA SUDO: Add support for ipaSudoRunAsExt* attributes
  • sdap_connect_send: fail if uri or sockaddr is NULL
  • cache_req: simplify cache_req_cache_check()
  • cache_req: do not lookup views if possible
  • remove user certificate if not found on the server
  • IPA SUDO: download externalUser attribute
  • IPA SUDO: fix typo
  • IPA SUDO: support old ipasudocmd rdn
  • SUDO: be able to parse modifyTimestamp correctly

Pavel Reichl (11):

  • sudo: remove unused param name in sdap_sudo_get_usn()
  • sudo: remove unused param. in ldap_get_sudo_options
  • IDMAP: Fix computing max id for slice range
  • IDMAP: New structure for domain range params
  • IDMAP: Add support for automatic adding of ranges
  • IDMAP: Fix minor memory leak
  • IDMAP: Man change for ldap_idmap_range_size option
  • NSS: Fix memory leak netgroup
  • IDMAP: Add test to validate off by one bug
  • SDAP: Add return code ERR_ACCOUNT_LOCKED
  • PAM: Pass account lockout status and display message

Petr Cech (6):

  • KRB5: Adding DNS SRV lookup for krb5 provider
  • TOOLS: Fix memory leak after getline() failed
  • TOOLS: Add comments on functions in colondb
  • TEST_TOOLS_COLONDB: Add tests for sss_colondb_*
  • REFACTOR: umask(077) –> umask(SSS_DFL_X_UMASK)
  • REFACTOR: umask(0177) –> umask(SSS_DFL_UMASK)

Stephen Gallagher (2):

  • GPO: Add Cockpit to the Remote Interactive defaults
  • GPO: Add other display managers to interactive logon

Sumit Bose (20):

  • nfs idmap: fix infinite loop
  • Use right domain for user lookups
  • sdap_save_grpmem: determine domain by SID if possible
  • ipa_s2n_save_objects(): use configured user and group timeout
  • ldap: remove originalMeberOf if there is no memberOf
  • UTIL: allow to skip default options for child processes
  • DP_TASK: add be_ptask_get_timeout()
  • AD: add task to renew the machine account password if needed
  • FO: add fo_get_active_server()
  • FO: add be_fo_get_active_server_name()
  • AD: try to use current server in the renewal task
  • p11: add gnome-screensaver to list of allowed services
  • IPA: lookup idview name even if there is no master domain record
  • IPA: invalidate override data if original view is missing
  • sdap: improve filtering of multiple results in GC lookups
  • pam_sss: reorder pam_message array
  • sss_override: do not generate DN, search object
  • tools: read additional data of the master domain
  • sss_override: only add domain if name is not fully qualified
  • intg: local override for user with mixed case name