package SL::Auth;
-use constant OK => 0;
-use constant ERR_PASSWORD => 1;
-use constant ERR_BACKEND => 100;
-
-use constant SESSION_OK => 0;
-use constant SESSION_NONE => 1;
-use constant SESSION_EXPIRED => 2;
+use DBI;
use Digest::MD5 qw(md5_hex);
use IO::File;
use Time::HiRes qw(gettimeofday);
use List::MoreUtils qw(uniq);
+use SL::Auth::Constants qw(:all);
use SL::Auth::DB;
use SL::Auth::LDAP;