[Allow greeter to set fields]
Identity=unix-user:lightdm
Action=org.ayatana.AccountsService.GreeterChangeAny
ResultAny=no
ResultInactive=yes
ResultActive=yes

[Allow greeter to read fields]
Identity=unix-user:lightdm
Action=org.ayatana.AccountsService.GreeterReadAny
ResultAny=yes
ResultInactive=yes
ResultActive=yes