326 lines
8.6 KiB
Perl
Executable File
326 lines
8.6 KiB
Perl
Executable File
#! /usr/bin/perl
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# $Id$
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#
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# This code is part of LDAP Account Manager (http://www.sourceforge.net/projects/lam)
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# Copyright (C) 2003 - 2006 Tilo Lutz
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# Copyright (C) 2006 - 2009 Roland Gruber
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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#
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# LDAP Account Manager daemon to create and delete homedirecotries and quotas
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use Sys::Syslog;
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# set a known path
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my $path = "";
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if (-d "/sbin") {
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if ($path eq "") { $path = "/sbin"; }
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else { $path = "$path:/sbin"; }
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}
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if (-d "/usr/sbin") {
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if ($path eq "") { $path = "/usr/sbin"; }
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else { $path = "$path:/usr/sbin"; }
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}
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if (-l "/bin") {
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if ($path eq "") { $path = "/usr/bin"; }
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else { $path = "$path:/usr/bin"; }
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}
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else {
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if ($path eq "") { $path = "/bin:/usr/bin"; }
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else { $path = "$path:/bin:/usr/bin"; }
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}
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if (-d "/opt/sbin") { $path = "$path:/opt/sbin"; }
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if (-d "/opt/bin") { $path = "$path:/opt/bin"; }
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$ENV{"PATH"} = $path;
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# get hostname
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$hostname = `hostname`;
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chop($hostname);
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#use strict; # Use strict for security reasons
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@quota_grp;
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@quota_usr; # Filesystems with enabled userquotas
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# vals = DN, PAssword, user, home, (add|rem),
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# quota, (set|get),(u|g), (mountpoint,blocksoft,blockhard,filesoft,filehard)+
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# chown options
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$|=1; # Disable buffering
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sub get_fs { # Load mountpoints from mtab if enabled quotas
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Quota::setmntent();
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my $i=0;
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my @args;
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while (my @temp = Quota::getmntent()) {
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$args[$i][0] = $temp[0];
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$args[$i][1] = $temp[1];
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$args[$i][2] = $temp[2];
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$args[$i][3] = $temp[3];
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$i++;
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}
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Quota::endmntent();
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my $j=0; my $k=0; $i=0;
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while ($args[$i][0]) {
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if ( $args[$i][3] =~ m/usrquota/ ) {
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$quota_usr[$j][0] = $args[$i][0];
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$quota_usr[$j][1] = $args[$i][1];
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$quota_usr[$j][2] = $args[$i][2];
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$quota_usr[$j][3] = $args[$i][3];
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$j++;
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}
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if ( $args[$i][3] =~ m/grpquota/ ) {
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$quota_grp[$k][0] = $args[$i][0];
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$quota_grp[$k][1] = $args[$i][1];
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$quota_grp[$k][2] = $args[$i][2];
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$quota_grp[$k][3] = $args[$i][3];
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$k++;
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}
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$i++;
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}
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}
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# ***************** Check values
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# check if script runs as root
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if ($< != 0 ) {
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print "ERROR,Lamdaemon ($hostname),Not called as root!\n";
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logMessage(LOG_ERR, "Not called as root!");
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exit 1;
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}
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# Drop root privileges
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($<, $>) = ($>, $<);
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# loop for every transmitted user
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while (1) {
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my $input = <STDIN>;
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chop($input);
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$return = "";
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@vals = split (' ', $input);
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switch: {
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# test if lamdaemon can be run
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if (($vals[1] eq 'test')) {
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runTest();
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last switch;
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}
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# Get user information
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if (($vals[3] eq 'user') || ($vals[1] eq 'home')) { @user = getpwnam($vals[0]); }
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else { @user = getgrnam($vals[0]); }
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if ($vals[1] eq 'home') {
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if ($vals[2] eq 'add') {
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createHomedir();
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}
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elsif ($vals[2] eq 'rem') {
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removeHomedir();
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}
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else {
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# Show error if undefined command is used
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$return = "ERROR,Lamdaemon ($hostname),Unknown home command $vals[2].";
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logMessage(LOG_ERR, "Unknown command $vals[2]");
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}
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last switch;
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};
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if ($vals[1] eq 'quota') {
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require Quota; # Needed to get and set quotas
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get_fs(); # Load list of devices with enabled quotas
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# Store quota information in array
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@quota_temp1 = split (':', $vals[4]);
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$group=0;
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$i=0;
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while ($quota_temp1[$i]) {
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$j=0;
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@temp = split (',', $quota_temp1[$i]);
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while ($temp[$j]) {
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$quota[$i][$j] = $temp[$j];
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$j++;
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}
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$i++;
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}
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if ($vals[3] eq 'user') { $group=false; }
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else {
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$group=1;
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@quota_usr = @quota_grp;
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}
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if ($vals[2] eq 'rem') {
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remQuotas();
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}
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elsif ($vals[2] eq 'set') {
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setQuotas();
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}
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elsif ($vals[2] eq 'get') {
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getQuotas();
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}
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else {
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$return = "ERROR,Lamdaemon ($hostname),Unknown quota command $vals[2].";
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logMessage(LOG_ERR, "Unknown command $vals[2].");
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}
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};
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last switch;
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$return = "ERROR,Lamdaemon ($hostname),Unknown command $vals[1].";
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logMessage(LOG_ERR, "Unknown command $vals[1].");
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};
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print "$return\n";
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}
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#
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# Runs tests to check the environment
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#
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sub runTest {
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# basic test
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if ($vals[2] eq 'basic') {
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$return = "Ok";
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}
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# quota test
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elsif ($vals[2] eq 'quota') {
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require Quota;
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$return = "Ok";
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}
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}
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#
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# Creates the homedirectory of the user
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#
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sub createHomedir {
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my $homedir = $user[7];
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my $path = $homedir;
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# split homedir to set all directories below the last dir. to 0755
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$path =~ s,/(?:[^/]*)$,,;
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($<, $>) = ($>, $<); # Get root privileges
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if (! -e $path) {
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system 'mkdir', '-m', '0755', '-p', $path; # Create paths to homedir
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}
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if (! -e $homedir) {
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system 'mkdir', '-m', $vals[3], $homedir; # Create homedir itself
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system ("(cd /etc/skel && tar cf - .) | (cd $homedir && tar xmf -)"); # Copy /etc/sekl into homedir
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system 'chown', '-hR', "$user[2]:$user[3]" , $homedir; # Change owner to new user
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if (-e '/usr/sbin/useradd.local') {
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system '/usr/sbin/useradd.local', $user[0]; # run useradd-script
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system 'chmod', '-R', $vals[3], $homedir; # Edit chmod rights
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}
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system 'chmod', $vals[3], $homedir; # Edit chmod rights
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$return = "INFO,Lamdaemon ($hostname),Home directory created (" . $homedir . ").";
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logMessage(LOG_INFO, "Home directory created (" . $homedir . ")");
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}
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else {
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$return = "ERROR,Lamdaemon ($hostname),Home directory already exists (" . $homedir . ").";
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logMessage(LOG_INFO, "Home directory already exists (" . $homedir . ")");
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}
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($<, $>) = ($>, $<); # Give up root previleges
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}
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#
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# Removes the homedirectory of the user
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#
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sub removeHomedir {
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($<, $>) = ($>, $<); # Get root previliges
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if (-d $user[7] && $user[7] ne '/') {
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if ((stat($user[7]))[4] eq $user[2]) {
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system 'rm', '-R', $user[7]; # Delete Homedirectory
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if (-e '/usr/sbin/userdel.local') {
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system '/usr/sbin/userdel.local', $user[0];
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}
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$return = "Ok";
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logMessage(LOG_INFO, "Home directory removed (" . $user[7] . ")");
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}
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else {
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$return = "ERROR,Lamdaemon ($hostname),Home directory not owned by $user[2].";
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logMessage(LOG_ERR, "Home directory owned by wrong user (" . $user[7] . ")");
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}
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}
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else {
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$return = "INFO,Lamdaemon ($hostname),The directory which should be deleted was not found (skipped).";
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}
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($<, $>) = ($>, $<); # Give up root previleges
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}
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#
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# Removes the quotas of a user or group
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#
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sub remQuotas {
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$i=0;
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($<, $>) = ($>, $<); # Get root privileges
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while ($quota_usr[$i][0]) {
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$dev = Quota::getqcarg($quota_usr[$i][1]);
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$return = Quota::setqlim($dev,$user[2],0,0,0,0,1,$group);
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$i++;
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}
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($<, $>) = ($>, $<); # Give up root previleges
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}
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#
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# Sets the quota values
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#
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sub setQuotas {
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$i=0;
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($<, $>) = ($>, $<); # Get root privileges
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while ($quota[$i][0]) {
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$dev = Quota::getqcarg($quota[$i][0]);
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$return = Quota::setqlim($dev,$user[2],$quota[$i][1],$quota[$i][2],$quota[$i][3],$quota[$i][4],1,$group);
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if ($return == -1) {
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$return = "ERROR,Lamdaemon ($hostname),Unable to set quota!";
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logMessage(LOG_ERR, "Unable to set quota for $user[0].");
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}
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else {
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logMessage(LOG_INFO, "Set quota for $user[0].");
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}
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$i++;
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}
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($<, $>) = ($>, $<); # Give up root previleges
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}
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#
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# Reads the quota values
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#
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sub getQuotas {
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$i=0;
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($<, $>) = ($>, $<); # Get root privileges
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while ($quota_usr[$i][0]) {
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if ($vals[0]ne'+') {
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$dev = Quota::getqcarg($quota_usr[$i][1]);
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@temp = Quota::query($dev,$user[2],$group);
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if ($temp[0]ne'') {
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if ($temp == -1) {
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$return = "ERROR,Lamdaemon ($hostname),Unable to read quota!";
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logMessage(LOG_ERR, "Unable to read quota for $user[0].");
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}
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else {
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$return = "$quota_usr[$i][1],$temp[0],$temp[1],$temp[2],$temp[3],$temp[4],$temp[5],$temp[6],$temp[7]:$return";
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}
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}
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else { $return = "$quota_usr[$i][1],0,0,0,0,0,0,0,0:$return"; }
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}
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else { $return = "$quota_usr[$i][1],0,0,0,0,0,0,0,0:$return"; }
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$i++;
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}
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($<, $>) = ($>, $<); # Give up root previleges
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}
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#
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# Logs a message to the syslog.
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#
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# Parameters: level message
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#
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# level: error level
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# message: message text
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#
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sub logMessage {
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my $level = $_[0];
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my $message = $_[1];
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openlog('LAM - lamdaemon','','user');
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syslog($level, $message);
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closelog;
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}
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