[squid-users] kerberos_ldap_group stopped working with subdomains

Hi!
Please, help.
I've been using squid 3.3.11 on FreeBSD 10 for a year.
I have AD and kerberos authentification. Squid checks DenyInternet
group membership through kerberos_ldap_group. My domain example.org
has subdomains like south.example.org, west.example.org, etc. All
users use proxy.example.org.
Everything works fine. Here is config:

auth_param negotiate program
/usr/local/libexec/squid/negotiate_kerberos_auth -s
HTTP/proxy.example.org_at_EXAMPLE.ORG
auth_param negotiate children 100 startup=30 idle=5
auth_param negotiate keep_alive

external_acl_type no_inet_users ttl=3600 negative_ttl=3600
children-max=100 children-startup=30 children-idle=5 grace=15 %LOGIN
/usr/local/libexec/squid/ext_kerberos_ldap_group_acl -d -a -g
DenyInternet -m 64 -D EXAMPLE.ORG -u squid -p itsPass

Now I'm tring to migrate to squid 3.4.6. Same config.
I've encountered with problem that kerberos_ldap_group stopped working
with subdomain users like user_at_south.example.org while it still works
with user_at_example.org.
In general it started to complain "ERROR: Error during setup of
Kerberos credential cache" in cache.log.
When I turn on the debug I'm getting this:

kerberos_ldap_group.cc(372): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: INFO: Got User: ptimofeev Domain:
SOUTH.EXAMPLE.ORG
support_member.cc(55): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: User domain loop: group_at_domain
OCS-DenyInternet-G_at_NULL
support_member.cc(83): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Default domain loop: group_at_domain
OCS-DenyInternet-G_at_NULL
support_member.cc(111): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Default group loop: group_at_domain
OCS-DenyInternet-G_at_NULL
support_member.cc(113): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Found group_at_domain OCS-DenyInternet-G_at_NULL
support_ldap.cc(801): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Setup Kerberos credential cache
support_krb5.cc(90): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Get default keytab file name
support_krb5.cc(96): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Got default keytab file name
/usr/local/etc/squid/squid.keytab
support_krb5.cc(110): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Get principal name from keytab
/usr/local/etc/squid/squid.keytab
support_krb5.cc(119): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Keytab entry has realm name: EXAMPLE.ORG
support_krb5.cc(119): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Keytab entry has realm name: EXAMPLE.ORG
support_krb5.cc(119): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Keytab entry has realm name: EXAMPLE.ORG
support_krb5.cc(119): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Keytab entry has realm name: EXAMPLE.ORG
support_krb5.cc(119): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Keytab entry has realm name: EXAMPLE.ORG
support_krb5.cc(174): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Set credential cache to
MEMORY:squid_ldap_13729
support_krb5.cc(186): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Did not find a principal in keytab for
domain SOUTH.EXAMPLE.ORG.
support_krb5.cc(187): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Try to get principal of trusted domain.
support_krb5.cc(201): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Keytab entry has principal:
HTTP/proxy.example.org_at_EXAMPLE.ORG
support_krb5.cc(247): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Found trusted principal name:
HTTP/proxy.example.org_at_EXAMPLE.ORG
support_krb5.cc(315): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: Got no principal name
support_ldap.cc(806): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: ERROR: Error during setup of Kerberos credential
cache
support_member.cc(124): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: INFO: User ptimofeev is not member of
group_at_domain OCS-DenyInternet-G_at_NULL
kerberos_ldap_group.cc(407): pid=13729 :2014/08/21 13:58:53|
kerberos_ldap_group: DEBUG: ERR
Received on Thu Aug 21 2014 - 10:52:43 MDT