[strongSwan] upgrade to 4.4.0 and virt ip-address-pool

[Peter Winterer]

Hi all, 
I just did an upgrade from strongswan 4.3.5 to 4.4.0.
We are using an virtual ip-adresspool (sqlite) to assign ip-addresses from the 
server to the client. With 4.3.5 this works without any problems. 
After upgrading, I am getting the following error-message:

ipsec pool --status :
  database URI libhydra.plugins.attr-sql.database not set

And the following message in the log, when I start "ipsec":


Starting IKEv2 charon daemon (strongSwan 4.4.0)
[CFG] attr-sql plugin: database URI not set
[LIB] plugin 'attr-sql': failed to load - attr_sql_plugin_create returned NULL


The plugins seem to be available:

/usr/libexec/ipsec/plugins/libstrongswan-sql.a                                                                                     
/usr/libexec/ipsec/plugins/libstrongswan-sql.la                                                                                    
/usr/libexec/ipsec/plugins/libstrongswan-sqlite.so                                                                                 
/usr/libexec/ipsec/plugins/libstrongswan-sqlite.a                                                                                  
/usr/libexec/ipsec/plugins/libstrongswan-attr-sql.so                                                                               
/usr/libexec/ipsec/plugins/libstrongswan-sqlite.la                                                                                 
/usr/libexec/ipsec/plugins/libstrongswan-attr-sql.la                                                                               
/usr/libexec/ipsec/plugins/libstrongswan-sql.so                                                                                    
/usr/libexec/ipsec/plugins/libstrongswan-attr-sql.a                                                                                
                                                                                               
/usr/lib/libhydra.la                                                                                                               
/usr/lib/libhydra.a                                                                                                                
/usr/lib/libhydra.so.0.0.0                                                                                                         
/usr/lib/libhydra.so.0 -> libhydra.so.0.0.0                                                                                        
/usr/lib/libhydra.so -> libhydra.so.0.0.0  


strongswan.conf:
...
libstrongswan {
        plugins {
                attr-sql {

                        # loglevel to log into sql database
                        loglevel = -1

                        # URI to the database
                        # database = sqlite:///path/to/file.db
                        database = sqlite:///etc/ipsec.d/ipsec.db
                        # database = mysql://user:password@localhost/database
                }
        }
}
pool {
      load = sqlite
}
.....



Any ideas? Thanks 
Peter