Ensure Postfix's LDAP searchBase exists when doing a lookup.

Postfix interprets Error Code 32 (No Such Object) as lookup failures,
but that's ugly...

Also, make Postfix simple bind against
cn=postfix,ou=services,dc=fripost,dc=org.

1 files changed, 20 insertions, 11 deletions

diff --git a/roles/common-LDAP/templates/etc/ldap/database.ldif.j2 b/roles/common-LDAP/templates/etc/ldap/database.ldif.j2
index d3915df..4c45219 100644
--- a/roles/common-LDAP/templates/etc/ldap/database.ldif.j2
+++ b/roles/common-LDAP/templates/etc/ldap/database.ldif.j2
@@ -247,50 +247,56 @@ olcAccess: to dn.subtree="dc=fripost,dc=org"
 # Base
 #
 # * Only SyncRepl replicates may access operational attributes in the
 #   subtree, when using a TLS-protected connection.
 {% if 'LDAP-provider' in group_names -%}
 olcAccess: to dn.subtree="ou=virtual,dc=fripost,dc=org"
         attrs=entryDN,entryCSN,entryUUID,structuralObjectClass,hasSubordinates,subschemaSubentry
     by dn.onelevel="ou=syncRepl,dc=fripost,dc=org" tls_ssf=128 =rsd
     by *                                                       =0
 #
 # * They may also read entries (ie, the attributes they have access to
 #   as per the ACL below) in that subtree, when using a TLS-protected
 #   connection.  Listing entries (their DN) is required to replicate
 #   deletions properly.
 olcAccess: to dn.subtree="ou=virtual,dc=fripost,dc=org"
         attrs=entry,objectClass
     by dn.onelevel="ou=syncRepl,dc=fripost,dc=org" tls_ssf=128 =rsd
     by users                                                   =0   break
 {% endif -%}
 #
-# * Dovecot may use the base as a searchBase on the MDA (for the iterate
-#   filter), when SASL-binding using the EXTERNAL mechanism and
-#   connecting to a local ldapi:// socket.
-{% if 'MDA' in group_names -%}
+# * Postfix may use the base as a searchBase on the MX:es, when
+#   connecting a local ldapi:// socket from the 'private' directory in
+#   one of the non-default instance's chroot.
+# * So may Dovecot on the MDA (needed for the iterate filter), when
+#   SASL-binding using the EXTERNAL mechanism and connecting to a local
+#   ldapi:// socket.
 olcAccess: to dn.exact="ou=virtual,dc=fripost,dc=org"
         attrs=entry,objectClass
         filter=(objectClass=FripostVirtual)
-    by dn.exact="username=dovecot,cn=peercred,cn=external,cn=auth" sockurl.regex="^ldapi://" =sd
-    by users                                                                                 =0 break
-{% endif -%}
+    {% if 'MDA' in group_names -%}
+    by dn.exact="username=dovecot,cn=peercred,cn=external,cn=auth" sockurl.regex="^ldapi://"                                            =sd
+    {% endif -%}
+    {% if 'MX' in group_names -%}
+    by dn.exact="cn=postfix,ou=services,dc=fripost,dc=org" sockurl.regex="^ldapi://%2Fvar%2Fspool%2Fpostfix-[-[:alnum:]]+%2Fprivate%2F" =sd
+    {% endif -%}
+    by users                                                                                                                            =0 break
 #
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
 # Domain entries
 #
 # * The SyncRepl replicates have read access to the entry itself, when
 #   using a TLS-protected connection.
 # * So has Postfix, when connecting a local ldapi:// socket from the
 #   'private' directory in one of the non-default instance's chroot.
 # * So has Dovecot on the MDA (for the iterate filter), when
 #   SASL-binding using the EXTERNAL mechanism and connecting to a local
 #   ldapi:// socket.
 # * Amavis may use the entry as searchBase (required to look for the
 #   per-user preferences) but doesn't have read access to the entry.
 # * The 'nobody' UNIX user has read access on the MX:es, when using
 #   SASL-binding using the EXTERNAL mechanism and connecting to a local
 #   ldapi:// socket.  This is required for the 'reserved-alias.pl'
 #   script.
 olcAccess: to dn.regex="^fvd=[^,]+,ou=virtual,dc=fripost,dc=org$"
         attrs=entry,objectClass,fvd
         filter=(&(objectClass=FripostVirtualDomain)(!(objectClass=FripostPendingEntry)))
@@ -318,47 +324,50 @@ olcAccess: to dn.regex="^fvd=[^,]+,ou=virtual,dc=fripost,dc=org$"
 # * So can Postfix on the MX:es, when connecting a local ldapi:// socket
 #   from the 'private' directory in one of the non-default instance's
 #   chroot.
 {% if 'MX' in group_names or ('LDAP-provider' in group_names and groups.MX | difference([inventory_hostname])) %}
 olcAccess: to dn.regex="^fvd=[^,]+,ou=virtual,dc=fripost,dc=org$"
         attrs=fripostIsStatusActive,fripostOptionalMaildrop
         filter=(&(objectClass=FripostVirtualDomain)(!(objectClass=FripostPendingEntry)))
     {% if 'LDAP-provider' in group_names and groups.MX | difference([inventory_hostname]) -%}
     by dn.exact="cn=mX,ou=syncRepl,dc=fripost,dc=org"      tls_ssf=128                                                                  =rsd
     {% endif -%}
     {% if 'MX' in group_names -%}
     by dn.exact="cn=postfix,ou=services,dc=fripost,dc=org" sockurl.regex="^ldapi://%2Fvar%2Fspool%2Fpostfix-[-[:alnum:]]+%2Fprivate%2F" =rsd
     {% endif -%}
     by users                                                                                                                            =0 break
 {% endif %}
 #
 # * The 'nobody' UNIX user can list the domain owners and postmasters on
 #   the MX:es, when SASL-binding using the EXTERNAL mechanism and
 #   connecting to a local ldapi:// socket.  This is required for the
 #   'reserved-alias.pl' script.
-{% if 'MX' in group_names %}
 olcAccess: to dn.regex="^fvd=[^,]+,ou=virtual,dc=fripost,dc=org$"
         attrs=fripostOwner,fripostPostmaster
         filter=(&(objectClass=FripostVirtualDomain)(!(objectClass=FripostPendingEntry)))
-    by dn.exact="username=nobody,cn=peercred,cn=external,cn=auth" sockurl.regex="^ldapi://" =rsd
-    by users                                                                                =0 break
-{% endif %}
+    {% if 'LDAP-provider' in group_names and groups.MX | difference([inventory_hostname]) -%}
+    by dn.exact="cn=mX,ou=syncRepl,dc=fripost,dc=org"                                       tls_ssf=128   =rsd
+    {% endif -%}
+    {% if 'MX' in group_names %}
+    by dn.exact="username=nobody,cn=peercred,cn=external,cn=auth" sockurl.regex="^ldapi://"               =rsd
+    {% endif -%}
+    by users                                                                                              =0 break
 #
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
 # Alias domain entries
 #
 # * The SyncRepl MX replicates have read access to the entry itself and
 #   the destination domain it aliases to, when using a TLS-protected
 #   connection.
 # * So has Postfix on the MX:es, when connecting a local ldapi:// socket
 #   from the 'private' directory in one of the non-default instance's
 #   chroot.
 {% if 'MX' in group_names or ('LDAP-provider' in group_names and groups.MX | difference([inventory_hostname])) %}
 olcAccess: to dn.regex="^fvd=[^,]+,ou=virtual,dc=fripost,dc=org$"
         attrs=entry,fripostMaildrop
         filter=(&(objectClass=FripostVirtualAliasDomain)(!(objectClass=FripostPendingEntry)))
     {% if 'LDAP-provider' in group_names and groups.MX | difference([inventory_hostname]) -%}
     by dn.exact="cn=mX,ou=syncRepl,dc=fripost,dc=org"      tls_ssf=128                                                                  =rsd
     {% endif -%}
     {% if 'MX' in group_names -%}
     by dn.exact="cn=postfix,ou=services,dc=fripost,dc=org" sockurl.regex="^ldapi://%2Fvar%2Fspool%2Fpostfix-[-[:alnum:]]+%2Fprivate%2F" =rsd
     {% endif -%}