examples/logon/mklogon/mklogon.pl

   1 #!/usr/bin/perl -w
   2
   3 # 05/01/2005 - 18:07:10
   4 #
   5 # mklogon.pl - Login Script Generator
   6 # Copyright (C) 2005 Ricky Nance
   7 # ricky.nance@gmail.com
   8 # http://www.weaubleau.k12.mo.us/~rnance/samba/mklogon.txt
   9 #
  10 # This program is free software; you can redistribute it and/or
  11 # modify it under the terms of the GNU General Public License
  12 # as published by the Free Software Foundation; either version 2
  13 # of the License, or any later version.
  14 #
  15 # This program is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with this program; if not, see <http://www.gnu.org/licenses/>.
  22 #
  23
  24 # Version: 1.0 (Stable)
  25 # Revised: 07/28/2005
  26
  27 # Comments...
  28 # Working on logging to the system logs, Logs user activity, but not errors yet.
  29
  30 use strict;
  31 use Getopt::Long;
  32
  33 eval { require Config::Simple; };
  34 if ($@) {
  35     print("\n");
  36     print( "It appears as though you don't have the Config Simple perl module installed.\n" );
  37     print("The package is typically called 'Config::Simple' \n");
  38     print("and it needs to be installed, before you can use this utility\n");
  39     print("Most PERL installations will allow you to use a command like\n");
  40     print("\ncpan -i Config::Simple\n");
  41     print("from the command line while logged in as the root user.\n");
  42     print("\n");
  43     exit(1);
  44 }
  45
  46 # use Data::Dumper; #Used for debugging purposes
  47
  48 # This variable should point to the external conf file, personally I would set
  49 # it to /etc/samba/mklogon.conf
  50 my $configfile;
  51
  52 foreach my $dir ( ( '/etc', '/etc/samba', '/usr/local/samba/lib' ) ) {
  53     if ( -e "$dir/mklogon.conf" ) {
  54         $configfile = "$dir/mklogon.conf";
  55         last;
  56     }
  57 }
  58
  59 # This section will come directly from the samba server. Basically it just makes the script easier to read.
  60 my $getopts = GetOptions(
  61     'u|username=s'   => \my $user,
  62     'm|machine=s'    => \my $machine,
  63     's|servername=s' => \my $server,
  64     'o|ostype=s'     => \my $os,
  65     'i|ip=s'         => \my $ip,
  66     'd|date=s'       => \my $smbdate,
  67     'h|help|?'       => \my $help
  68 );
  69
  70 if ($help) {
  71     help();
  72     exit(0);
  73 }
  74
  75 # We want the program to error out if its missing an argument.
  76 if ( !defined($user) )    { error("username"); }
  77 if ( !defined($machine) ) { error("machine name") }
  78 if ( !defined($server) )  { error("server name") }
  79 if ( !defined($os) )      { error("operating system") }
  80 if ( !defined($ip) )      { error("ip address") }
  81 if ( !defined($smbdate) ) { error("date") }
  82
  83 # This section will be read from the external config file
  84 my $cfg = new Config::Simple($configfile) or die "Could not find $configfile";
  85
  86 # Read this part from the samba config
  87 my ( $sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst ) = localtime(time);
  88 my $sambaconf = $cfg->param("global.sambaconf") or die "Couldn't find your samba config! \n";
  89 my $smbcfg = new Config::Simple( filename => $sambaconf, syntax => "ini" );
  90 my $smbprof = $smbcfg->param("profiles.path");
  91 my $smbnetlogdir = $smbcfg->param("netlogon.path");
  92 my $logging      = lc( $cfg->param("global.logging") );
  93 my $mkprofile    = lc( $cfg->param("global.mkprofile") );
  94 my $logdir       = $cfg->param("global.logdir");
  95 my $logfile      = $cfg->param("global.logfile");
  96 my $logs         = "$logdir\/$logfile";
  97 my $logtype      = $cfg->param("global.logtype");
  98 my $usermap      = "usermap.$user";
  99 my $osmap        = "os.$os";
 100 my @ostype       = $cfg->param($osmap);
 101 my @username     = $cfg->param($usermap);
 102 my $compname     = $cfg->param( -block => "machines" );
 103 my $ipname       = $cfg->param( -block => "ip" );
 104 my $timesync     = $cfg->param("global.timesync");
 105 my $altserver    = $cfg->param("global.servername");
 106 if ( defined($altserver) ) { $server = $altserver; }
 107 $server = uc($server);
 108
 109 # Lets start logging stuff if it is turned on in the config
 110 if ( $logging =~ m/on|yes|1/i ) {
 111     if ($logtype =~ m/file/i) {
 112         print "----- Logging is turned on in the config. -----\n";
 113         print "----- Location of the logfile is \"$logs\" -----\n";
 114         open LOG, ">>$logs";
 115         printf LOG "Date: $smbdate Time: ";
 116         printf LOG '%02d', $hour;
 117         print LOG ":";
 118         printf LOG '%02d', $min;
 119         print LOG ".";
 120         printf LOG '%02d', $sec;
 121         print LOG " -- User: $user - Machine: $machine - IP: $ip -- \n";
 122         close(LOG);
 123     } elsif ($logtype =~ m/syslog|system/i){
 124         use Sys::Syslog;
 125         my $alert = "User: $user Logged into $machine ($ip) at $hour:$min.$sec on $smbdate.";
 126         openlog($0, 'cons', 'user');
 127         syslog('alert', $alert);
 128         closelog();
 129
 130     }
 131 } else {
 132     print "----- Logging is turned off in the config. -----\n";
 133 }
 134
 135 # If the user wants to make profiles with this script lets go
 136 if ( defined($smbprof) ) {
 137     if ( $mkprofile =~ m/on|yes|1/i ) {
 138         print "----- Automatic making of user profiles is turned on in the config. ----- \n";
 139         ( my $login, my $pass, my $uid, my $gid ) = getpwnam($user)
 140           or die "$user not in passwd file \n";
 141         $smbprof =~ s/\%U/$user/g;
 142         my $dir2 = "$smbprof\/$user";
 143         print "$smbprof \n";
 144         print "$dir2 \n";
 145         if ( !-e $dir2 ) {
 146             print "Creating " . $user . "'s profile with a uid of $uid\n";
 147             mkdir $smbprof;
 148             mkdir $dir2;
 149             chomp($user);
 150 #           chown $uid, $gid, $smbprof;
 151             chown $uid, $gid, $dir2;
 152         } else {
 153             print $user . "'s profile already exists \n";
 154         }
 155     } else {
 156         print "----- Automatic making of user profiles is turned off in the config. ----- \n";
 157     }
 158 }
 159
 160 # Lets start making the batch files.
 161 open LOGON, ">$smbnetlogdir\/$user.bat" or die "Unable to create userfile $smbnetlogdir\/$user.bat";
 162 print LOGON "\@ECHO OFF \r\n";
 163
 164 if ( $timesync =~ m/on|yes|1/i ) {
 165     print LOGON "NET TIME /SET /YES \\\\$server \r\n";
 166 } else {
 167     print "----- Time syncing to the client is turned off in the config. -----\n";
 168 }
 169
 170 # Mapping from the common section
 171 my $common = $cfg->param( -block => "common" );
 172 for my $key ( keys %$common ) {
 173     drive_map( @{ $common->{$key} } );
 174 }
 175
 176 my @perform_common = $cfg->param("performcommands.common");
 177 if ( defined( $perform_common[0] ) ) {
 178     foreach (@perform_common) {
 179         print LOGON "$_ \r\n";
 180     }
 181 }
 182
 183 # Map shares on a per user basis.
 184 drive_map(@username);
 185
 186 # Map shares based on the Operating System.
 187 drive_map(@ostype);
 188
 189 # Map shares only if they are in a group
 190 # This line checks against the unix "groups" command, to see the secondary groups of a user.
 191 my @usergroups = split( /\s/, do { open my $groups, "-|", groups => $user; <$groups> } );
 192 foreach (@usergroups) {
 193     my $groupmap  = "groupmap.$_";
 194     my @groupname = $cfg->param($groupmap);
 195     drive_map(@groupname);
 196 }
 197
 198 #Here is where we check the machine name against the config...
 199 for my $key ( keys %$compname ) {
 200     my $test = $compname->{$key};
 201     if ( ref $test eq 'ARRAY' ) {
 202         foreach (@$test) {
 203             if ( $_ eq $machine ) {
 204                 my $performit = $cfg->param("performcommands.$key");
 205                 if ( defined($performit) ) {
 206                     if ( ref $performit ) {
 207                         foreach (@$performit) { print LOGON "$_ \r\n"; }
 208                     } else {
 209                         print LOGON "$performit \r\n";
 210                     }
 211                 }
 212             }
 213         }
 214     }
 215     elsif ( $test eq $machine ) {
 216         my $performit = $cfg->param("performcommands.$key");
 217         if ( defined($performit) ) {
 218             if ( ref $performit ) {
 219                 foreach (@$performit) { print LOGON "$_ \r\n"; }
 220             } else {
 221                 print LOGON "$performit \r\n";
 222             }
 223         }
 224     }
 225 }
 226
 227 # Here is where we test the ip address against the client to see if they have "Special Mapping"
 228 # A huge portion of the ip matching code was made by
 229 # Carsten Schaub (rcsu in the #samba chan on freenode.net)
 230
 231 my $val;
 232 for my $key ( sort keys %$ipname ) {
 233     if ( ref $ipname->{$key} eq 'ARRAY' ) {
 234         foreach ( @{ $ipname->{$key} } ) {
 235             getipval( $_, $key );
 236         }
 237     } else {
 238         getipval( $ipname->{$key}, $key );
 239     }
 240 }
 241
 242 sub getipval {
 243     my ( $range, $rangename ) = @_;
 244     if ( parse( $ip, ipmap($range) ) ) {
 245         if ( $val eq 'true' ) {
 246             my $performit = $cfg->param("performcommands.$rangename");
 247             if ( defined($performit) ) {
 248                 if ( ref $performit ) {
 249                     foreach (@$performit) { print LOGON "$_ \r\n"; }
 250                 } else {
 251                     print LOGON "$performit \r\n";
 252                 }
 253             }
 254         } elsif ( $val eq 'false' ) {
 255         }
 256     } else {
 257     }
 258 }
 259
 260 sub ipmap {
 261     my $pattern = shift;
 262     my ( $iprange, $iprange2, $ipmask );
 263     if ( $pattern =~ m/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\/(\d{1,2})$/ ) {
 264         # 1.1.1.1/3 notation
 265         $iprange = pack( "U4", $1, $2, $3, $4 );
 266         $ipmask = pack( "U4", 0, 0, 0, 0 );
 267         my $numbits = $5;
 268         for ( my $i = 0 ; $i < $numbits ; $i++ ) {
 269             vec( $ipmask, int( $i / 8 ) * 8 + ( 8 - ( $i % 8 ) ) - 1, 1 ) = 1;
 270         }
 271         $iprange &= "$ipmask";
 272     } elsif ( $pattern =~ m/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\/(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/ ) {
 273         # 1.1.1.1/255.255.255.255 notation
 274         $iprange = pack( "U4", $1, $2, $3, $4 );
 275         $ipmask  = pack( "U4", $5, $6, $7, $8 );
 276         $iprange &= "$ipmask";
 277     } elsif ( $pattern =~ m/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ ) {
 278         # 1.1.1.1 notation
 279         $iprange = pack( "U4", $1, $2, $3, $4 );
 280         $ipmask = pack( "U4", 255, 255, 255, 255 );
 281     } elsif ( $pattern =~ m/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\s*\-\s*(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ ) {
 282         # 1.1.1.1 - 2.2.2.2 notation
 283         $iprange  = pack( "U4", $1,  $2,  $3,  $4 );
 284         $iprange2 = pack( "U4", $5,  $6,  $7,  $8 );
 285         $ipmask   = pack( "U4", 255, 255, 255, 255 );
 286     } else {
 287         return;
 288     }
 289         return $iprange, $ipmask, $iprange2;
 290 }
 291
 292 sub parse {
 293     my ( $origip, $ipbase, $ipmask, $iprange2 ) = @_;
 294     $origip =~ m/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/;
 295     $origip = pack( "U4", $1, $2, $3, $4 );
 296     if ( defined($iprange2) ) {
 297         if ( $ipbase le $origip && $origip le $iprange2 ) {
 298             return $val = 'true';
 299         } else {
 300             return $val = 'false';
 301         }
 302     } elsif ( ( "$origip" & "$ipmask" ) eq $ipbase ) {
 303         return $val = 'true';
 304     } else {
 305         return $val = 'false';
 306     }
 307 }
 308
 309 # This sub will distinguish the drive mappings
 310 sub drive_map {
 311     my @data = @_;
 312     for ( my $i = 0 ; $i < scalar(@data) ; ) {
 313         if ( $data[$i] =~ m/^[a-z]\:$/i ) {
 314             my $driveletter = $data[$i];
 315             $i++;
 316             my $sharename = $data[$i];
 317             $i++;
 318             if ( $sharename eq '/home' ) {
 319                 print LOGON uc("NET USE $driveletter \\\\$server\\$user \/Y \r\n");
 320             } else {
 321                 print LOGON
 322                   uc("NET USE $driveletter \\\\$server\\$sharename \/Y \r\n");
 323             }
 324         } else {
 325             print LOGON uc("$data[$i] \r\n");
 326             $i++;
 327         }
 328     }
 329 }
 330
 331 close(LOGON);
 332
 333 sub error {
 334     my $var = shift(@_);
 335     help();
 336     print "\n\tCritical!!! \n\n\tNo $var specified\n\n\tYou must specify a $var.\n\n";
 337     exit(0);
 338 }
 339
 340 sub help {
 341
 342     print << "EOF" ;
 343
 344         Usage:   $0 [options]
 345
 346         Options:
 347
 348         -h,--help               This help screen.
 349
 350         -u,--username           The name of the user from the samba server.
 351
 352         -m,--machinename        The name of the client connecting to the server.
 353
 354         -s,--server             The name of the server this script is running in.
 355
 356         -o,--os                 The clients OS -- Windows 95/98/ME (Win95), Windows NT (WinNT),
 357                                 Windows 2000 (Win2K), Windows  XP  (WinXP), and Windows 2003
 358                                 (Win2K3). Anything else will be known as ``UNKNOWN''
 359                                 That snippet is directly from man smb.conf.
 360
 361         -i,--ip                 The clients IP address.
 362
 363         -d,--date               Time and Date returned from the samba server.
 364
 365
 366
 367                                 --IMPORTANT--
 368
 369
 370                                 All options MUST be specified.
 371
 372                                 The mklogon.conf file MUST be located in /etc, /etc/samba, or
 373                                 /usr/local/samba/lib.
 374
 375         To use this file from the command line:
 376                 $0 -u User -m machine -s servername -o ostype -i X.X.X.X -d MM/DD/YY
 377
 378         To use this file from the samba server add these lines to your /etc/samba/smb.conf:
 379
 380
 381                 This line goes in the [global] section
 382                         login script = %U.bat
 383
 384                 This line should be at the end of the [netlogon] section.
 385                         root preexec = /path/to/mklogon.pl -u %U -m %m -s %L -o %a -i %I -d %t
 386
 387
 388 EOF
 389
 390     print "\n\n";
 391
 392 }