Split login authentication configuration into three scripts

Getting cumbersome with one big script.

4 files changed, 387 insertions, 327 deletions

diff --git a/scripts/system/vyatta_update_login.pl b/scripts/system/vyatta_update_login.pl
deleted file mode 100755
index a28224f8..00000000
--- a/scripts/system/vyatta_update_login.pl
+++ /dev/null
@@ -1,327 +0,0 @@
-#!/usr/bin/perl
-
-# **** License ****
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# This code was originally developed by Vyatta, Inc.
-# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc.
-# All Rights Reserved.
-#
-# **** End License ****
-
-use strict;
-use lib "/opt/vyatta/share/perl5";
-use Vyatta::Config;
-
-# handle "user"
-my $uconfig = new Vyatta::Config;
-$uconfig->setLevel("system login user");
-
-my %users     = $uconfig->listNodeStatus();
-my @user_keys = sort keys %users;
-
-if (   ( scalar(@user_keys) <= 0 )
-    || !( grep /^root$/, @user_keys )
-    || ( $users{'root'} eq 'deleted' ) )
-{
-
-    # root is deleted
-    print STDERR "User \"root\" cannot be deleted\n";
-    exit 1;
-}
-
-# Exit codes form useradd.8 man page
-my %reasons = (
-    0  => 'success',
-    1  => 'can´t update password file',
-    2  => 'invalid command syntax',
-    3  => 'invalid argument to option',
-    4  => 'UID already in use (and no -o)',
-    6  => 'specified group doesn´t exist',
-    9  => 'username already in use',
-    10 => 'can´t update group file',
-    12 => 'can´t create home directory',
-    13 => 'can´t create mail spool',
-);
-
-# Map of level to additional groups
-my %level_map = (
-    'admin'    => [ 'quaggavty', 'vyattacfg', 'sudo', 'adm', 'dip', 'disk'],
-    'operator' => [ 'quaggavty', 'operator',  'adm', 'dip', ],
-);
-
-# Construct a map from existing users to group membership
-# Use space seperated format
-my %group_map;
-while (my ($name, undef, undef, $members) = getgrent()) {
-    foreach my $user (split / /,$members) {
-	my $g = $group_map{$user};
-	if ($g) {
-	    my @l = split / /, $g;
-	    push @l, $name;
-	    $group_map{$user} = join(' ', sort @l);
-	} else {
-	    $group_map{$user} = $name;
-	}
-
-    }
-}
-
-# we have some users
-for my $user (@user_keys) {
-    if ( $users{$user} eq 'deleted' ) {
-        system("sudo userdel -r '$user'") == 0
-	    or die "userdel failed: $?\n"
-    }
-    elsif ( $users{$user} eq 'added' || $users{$user} eq 'changed' ) {
-        $uconfig->setLevel("system login user $user");
-        my $pwd  = $uconfig->returnValue('authentication encrypted-password');
-	$pwd or die "Encrypted password not in configuration for $user";
-
-        my $level  = $uconfig->returnValue('level');
-	$level or die "Level not defined for $user";
-
-	# map level to group membership
-        my @groups = @{$level_map{$level}};
-	# add any additional groups from configuration
-        push( @groups, $uconfig->returnValues('group') );
-
-        my $fname = $uconfig->returnValue('full-name');
-        my $home = $uconfig->returnValue('home-directory');
-
-        # Read existing settings
-        my (undef, $opwd, $uid,  $gid, undef, $comment, 
-	    undef, $dir, $shell, undef) = getpwnam($user);
-
-        my $cmd;
-	# not found in existing passwd, must be new
-        if ( !defined $uid ) {
-	    # make new user using vyatta shell
-	    #  and make home directory (-m)
-            #  and with default group of 100 (users)
-            $cmd = 'useradd -s /bin/vbash -m -N';
-        } else {
-	    # If no part of password or group file changed
-	    # then there is nothing to do here.
-	    next if ( $opwd eq $pwd &&
-		      (!$fname || $fname eq $comment) &&
-		      (!$home  || $home eq $dir)  &&
-		      join(' ',  sort @groups) eq $group_map{$user} );
-
-            $cmd = "usermod";
-        }
-
-        $cmd .= " -p '$pwd'";
-        $cmd .= " -c \"$fname\"" if ( defined $fname );
-        $cmd .= " -d \"$home\"" if ( defined $home );
-        $cmd .= ' -G ' . join( ',', @groups );
-        system("sudo $cmd $user") == 0
-	    or die "sudo $cmd $user failed: $?";
-    }
-}
-
-## setup tacacs+ server info
-# add tacacs to PAM file
-sub add_tacacs {
-    my $param_string = shift;
-    my $pam = shift;
-
-    my $cmd =
-        'sudo sh -c "'
-      . 'sed -i \'s/^\('
-      . "$pam"
-      . '\trequired\tpam_unix\.so.*\)$/'
-      . "$pam"
-      . '\tsufficient\tpam_tacplus.so\t'
-      . "$param_string # Vyatta"
-      . '\n\1/\' '
-      . "/etc/pam.d/common-$pam\"";
-
-    system($cmd);
-    return 0 if ( $? >> 8 );
-    return 1;
-}
-
-# remove tacacs from PAM files
-sub remove_tacacs {
-    my $cmd =
-        'sudo sh -c "'
-      . 'sed -i \'/\(.*pam_tacplus.*# Vyatta\)/ D\' '
-      . '/etc/pam.d/common-auth '
-      . '/etc/pam.d/common-account '
-      . '/etc/pam.d/common-session "';
-
-    system($cmd);
-    return 0 if ($? >> 8);
-    return 1;
-}
-
-# main tacacs
-# There is a race confition in here betwen radius and tacacs currently.
-# Also should probably add a chack to see if we ned to actually reconfig 
-# PAM rather than jusy doing it each commit.
-# Finally, service and protocol will need to be removed.  They are just 
-# in there for troubleshootig purposes right now.
-#
-my $tconfig = new Vyatta::Config;
-if ($tconfig->isDeleted("system login tacacs-plus")) { remove_tacacs; }
-$tconfig->setLevel("system login tacacs-plus");
-my @tacacs_params = $tconfig->listNodes();
-
-if ( scalar(@tacacs_params) > 0 ) {
-    remove_tacacs;
-    my ($acctall, $debug, $firsthit, $noencrypt);
-    if ( $tconfig->exists("acct-all") ) { $acctall = 1; }
-    if ( $tconfig->exists("debug") ) { $debug = 1; }
-    if ( $tconfig->exists("first-hit") ) { $firsthit = 1; }
-    if ( $tconfig->exists("no-encrypt") ) { $noencrypt = 1; }
-    my $protocol = $tconfig->returnValue("protocol");
-    my $secret = $tconfig->returnValue("secret");
-    my $server = $tconfig->returnValue("server");
-    my $service = $tconfig->returnValue("service");
-
-    if ( $server ne '' && $secret ne '') {
-      my ($authstr, $accountstr, $sessionstr, $ip);
-      my @servers = split /\s/, $server;
-
-      ## 3 common options
-      # encrypt this session
-      if (! $noencrypt ) { $authstr = "encrypt "; }
-      # single secret
-      $authstr .= "secret=$secret ";
-      # and debug
-      if ($debug) { $authstr .= "debug "; }
-
-      ## now they get specific
-      $accountstr = $sessionstr = $authstr;
-
-      # can be multiple servers for auth and session
-      foreach my $ip (@servers) {
-        $authstr    .= "server=$ip ";
-        $sessionstr .= "server=$ip ";
-      }
-
-      # first hit for auth
-      if ($firsthit) { $authstr .= "firsthit "; }
-
-      # acctall for session
-      if ($acctall) { $sessionstr .= "acctall "; }
-
-      # service and protocol for account and session
-      if ($service)  { $accountstr .= "service=$service "; $sessionstr .= "service=$service "; }
-      if ($protocol) { $accountstr .= "protocol=$protocol "; $sessionstr .= "protocol=$protocol "; }
-
-      add_tacacs("$authstr", "auth");
-      add_tacacs("$accountstr", "account");
-      add_tacacs("$sessionstr", "session");
-    }
-    else { exit 1; }
-}
-## end tacacs
-
-my $PAM_RAD_CFG   = '/etc/pam_radius_auth.conf';
-my $PAM_RAD_BEGIN = '# BEGIN Vyatta Radius servers';
-my $PAM_RAD_END   = '# END Vyatta Radius servers';
-
-sub is_pam_radius_present {
-    open( my $auth , '<' , '/etc/pam.d/common-auth' ) 
-	or die "Cannot open /etc/pam.d/common-auth\n";
-
-    my $present;
-    while (<$auth>) {
-        if (/\ssufficient\spam_radius_auth\.so$/) {
-            $present = 1;
-            last;
-        }
-    }
-    close $auth;
-    return $present;
-}
-
-sub remove_pam_radius {
-    return 1 if ( !is_pam_radius_present() );
-    my $cmd =
-        'sudo sh -c "'
-      . 'sed -i \'/\tsufficient\tpam_radius_auth\.so$/d;'
-      . '/\tpam_unix\.so /{s/ use_first_pass$//}\' '
-      . '/etc/pam.d/common-auth && '
-      . 'sed -i \'/\tsufficient\tpam_radius_auth\.so$/d\' '
-      . '/etc/pam.d/common-account"';
-    system($cmd);
-    return 0 if ( $? >> 8 );
-    return 1;
-}
-
-sub add_pam_radius {
-    return 1 if ( is_pam_radius_present() );
-    my $cmd =
-        'sudo sh -c "'
-      . 'sed -i \'s/^\(auth\trequired\tpam_unix\.so.*\)$'
-      . '/auth\tsufficient\tpam_radius_auth.so\n\1 use_first_pass/\' '
-      . '/etc/pam.d/common-auth && '
-      . 'sed -i \'s/^\(account\trequired\tpam_unix\.so.*\)$'
-      . '/account\tsufficient\tpam_radius_auth.so\n\1/\' '
-      . '/etc/pam.d/common-account"';
-    system($cmd);
-    return 0 if ( $? >> 8 );
-    return 1;
-}
-
-sub remove_radius_servers {
-    system( "sudo sed -i '/^$PAM_RAD_BEGIN\$/,/^$PAM_RAD_END\$/{d}' "
-          . "$PAM_RAD_CFG" );
-    return 0 if ( $? >> 8 );
-    return 1;
-}
-
-sub add_radius_servers {
-    my $str = shift;
-    system( "sudo sh -c \""
-          . "echo '$PAM_RAD_BEGIN\n$str$PAM_RAD_END\n' >> $PAM_RAD_CFG\"" );
-    return 0 if ( $? >> 8 );
-    return 1;
-}
-
-# handle "radius-server"
-my $rconfig = new Vyatta::Config;
-$rconfig->setLevel("system login radius-server");
-my %servers     = $rconfig->listNodeStatus();
-my @server_keys = sort keys %servers;
-if ( scalar(@server_keys) <= 0 ) {
-
-    # all radius servers deleted
-    exit 1 if ( !remove_pam_radius() );
-    exit 0;
-}
-
-# we have some servers
-my $all_deleted = 1;
-my $server_str  = '';
-remove_radius_servers();
-for my $server (@server_keys) {
-    if ( $servers{$server} ne 'deleted' ) {
-        $all_deleted = 0;
-        my $port    = $rconfig->returnValue("$server port");
-        my $secret  = $rconfig->returnValue("$server secret");
-        my $timeout = $rconfig->returnValue("$server timeout");
-        $server_str .= "$server:$port\t$secret\t$timeout\n";
-    }
-}
-
-if ($all_deleted) {
-
-    # all radius servers deleted
-    exit 1 if ( !remove_pam_radius() );
-} else {
-    exit 1 if ( !add_radius_servers($server_str) );
-    exit 1 if ( !add_pam_radius() );
-}
-
-exit 0;
diff --git a/scripts/system/vyatta_update_radius.pl b/scripts/system/vyatta_update_radius.pl
new file mode 100755
index 00000000..018a3e5d
--- /dev/null
+++ b/scripts/system/vyatta_update_radius.pl
@@ -0,0 +1,122 @@
+#!/usr/bin/perl
+
+# **** License ****
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# This code was originally developed by Vyatta, Inc.
+# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc.
+# All Rights Reserved.
+#
+# **** End License ****
+
+use strict;
+use warnings;
+
+use lib "/opt/vyatta/share/perl5";
+use Vyatta::Config;
+
+my $PAM_RAD_CFG   = '/etc/pam_radius_auth.conf';
+my $PAM_RAD_BEGIN = '# BEGIN Vyatta Radius servers';
+my $PAM_RAD_END   = '# END Vyatta Radius servers';
+
+sub is_pam_radius_present {
+    open( my $auth, '<', '/etc/pam.d/common-auth' )
+      or die "Cannot open /etc/pam.d/common-auth\n";
+
+    my $present;
+    while (<$auth>) {
+        if (/\ssufficient\spam_radius_auth\.so$/) {
+            $present = 1;
+            last;
+        }
+    }
+    close $auth;
+    return $present;
+}
+
+sub remove_pam_radius {
+    return 1 if ( !is_pam_radius_present() );
+    my $cmd =
+        'sudo sh -c "'
+      . 'sed -i \'/\tsufficient\tpam_radius_auth\.so$/d;'
+      . '/\tpam_unix\.so /{s/ use_first_pass$//}\' '
+      . '/etc/pam.d/common-auth && '
+      . 'sed -i \'/\tsufficient\tpam_radius_auth\.so$/d\' '
+      . '/etc/pam.d/common-account"';
+    system($cmd);
+    return 0 if ( $? >> 8 );
+    return 1;
+}
+
+sub add_pam_radius {
+    return 1 if ( is_pam_radius_present() );
+    my $cmd =
+        'sudo sh -c "'
+      . 'sed -i \'s/^\(auth\trequired\tpam_unix\.so.*\)$'
+      . '/auth\tsufficient\tpam_radius_auth.so\n\1 use_first_pass/\' '
+      . '/etc/pam.d/common-auth && '
+      . 'sed -i \'s/^\(account\trequired\tpam_unix\.so.*\)$'
+      . '/account\tsufficient\tpam_radius_auth.so\n\1/\' '
+      . '/etc/pam.d/common-account"';
+    system($cmd);
+    return 0 if ( $? >> 8 );
+    return 1;
+}
+
+sub remove_radius_servers {
+    system( "sudo sed -i '/^$PAM_RAD_BEGIN\$/,/^$PAM_RAD_END\$/{d}' "
+          . "$PAM_RAD_CFG" );
+    return 0 if ( $? >> 8 );
+    return 1;
+}
+
+sub add_radius_servers {
+    my $str = shift;
+    system( "sudo sh -c \""
+          . "echo '$PAM_RAD_BEGIN\n$str$PAM_RAD_END\n' >> $PAM_RAD_CFG\"" );
+    return 0 if ( $? >> 8 );
+    return 1;
+}
+
+# handle "radius-server"
+my $rconfig = new Vyatta::Config;
+$rconfig->setLevel("system login radius-server");
+my %servers     = $rconfig->listNodeStatus();
+my @server_keys = sort keys %servers;
+if ( scalar(@server_keys) <= 0 ) {
+
+    # all radius servers deleted
+    exit 1 if ( !remove_pam_radius() );
+    exit 0;
+}
+
+# we have some servers
+my $all_deleted = 1;
+my $server_str  = '';
+remove_radius_servers();
+for my $server (@server_keys) {
+    if ( $servers{$server} ne 'deleted' ) {
+        $all_deleted = 0;
+        my $port    = $rconfig->returnValue("$server port");
+        my $secret  = $rconfig->returnValue("$server secret");
+        my $timeout = $rconfig->returnValue("$server timeout");
+        $server_str .= "$server:$port\t$secret\t$timeout\n";
+    }
+}
+
+if ($all_deleted) {
+
+    # all radius servers deleted
+    exit 1 if ( !remove_pam_radius() );
+}
+else {
+    exit 1 if ( !add_radius_servers($server_str) );
+    exit 1 if ( !add_pam_radius() );
+}
diff --git a/scripts/system/vyatta_update_tacacs.pl b/scripts/system/vyatta_update_tacacs.pl
new file mode 100755
index 00000000..c4684efe
--- /dev/null
+++ b/scripts/system/vyatta_update_tacacs.pl
@@ -0,0 +1,129 @@
+#!/usr/bin/perl
+
+# **** License ****
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# This code was originally developed by Vyatta, Inc.
+# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc.
+# All Rights Reserved.
+#
+# **** End License ****
+
+use strict;
+use warnings;
+
+use lib "/opt/vyatta/share/perl5";
+use Vyatta::Config;
+
+## setup tacacs+ server info
+# add tacacs to PAM file
+sub add_tacacs {
+    my $param_string = shift;
+    my $pam          = shift;
+
+    my $cmd =
+        'sudo sh -c "'
+      . 'sed -i \'s/^\(' . "$pam"
+      . '\trequired\tpam_unix\.so.*\)$/' . "$pam"
+      . '\tsufficient\tpam_tacplus.so\t'
+      . "$param_string # Vyatta"
+      . '\n\1/\' '
+      . "/etc/pam.d/common-$pam\"";
+
+    system($cmd);
+    return 0 if ( $? >> 8 );
+    return 1;
+}
+
+# remove tacacs from PAM files
+sub remove_tacacs {
+    my $cmd =
+        'sudo sh -c "'
+      . 'sed -i \'/\(.*pam_tacplus.*# Vyatta\)/ D\' '
+      . '/etc/pam.d/common-auth '
+      . '/etc/pam.d/common-account '
+      . '/etc/pam.d/common-session "';
+
+    system($cmd);
+    return 0 if ( $? >> 8 );
+    return 1;
+}
+
+# main tacacs
+# There is a race condition in here betwen radius and tacacs currently.
+# Also should probably add a chack to see if we ned to actually reconfig
+# PAM rather than jusy doing it each commit.
+# Finally, service and protocol will need to be removed.  They are just
+# in there for troubleshootig purposes right now.
+#
+my $tconfig = new Vyatta::Config;
+if ( $tconfig->isDeleted("system login tacacs-plus") ) { remove_tacacs; }
+$tconfig->setLevel("system login tacacs-plus");
+my @tacacs_params = $tconfig->listNodes();
+
+if ( scalar(@tacacs_params) > 0 ) {
+    remove_tacacs;
+    my ( $acctall, $debug, $firsthit, $noencrypt );
+    if ( $tconfig->exists("acct-all") )   { $acctall   = 1; }
+    if ( $tconfig->exists("debug") )      { $debug     = 1; }
+    if ( $tconfig->exists("first-hit") )  { $firsthit  = 1; }
+    if ( $tconfig->exists("no-encrypt") ) { $noencrypt = 1; }
+    my $protocol = $tconfig->returnValue("protocol");
+    my $secret   = $tconfig->returnValue("secret");
+    my $server   = $tconfig->returnValue("server");
+    my $service  = $tconfig->returnValue("service");
+
+    if ( $server ne '' && $secret ne '' ) {
+        my ( $authstr, $accountstr, $sessionstr, $ip );
+        my @servers = split /\s/, $server;
+
+        ## 3 common options
+        # encrypt this session
+        if ( !$noencrypt ) { $authstr = "encrypt "; }
+
+        # single secret
+        $authstr .= "secret=$secret ";
+
+        # and debug
+        if ($debug) { $authstr .= "debug "; }
+
+        ## now they get specific
+        $accountstr = $sessionstr = $authstr;
+
+        # can be multiple servers for auth and session
+        foreach my $ip (@servers) {
+            $authstr    .= "server=$ip ";
+            $sessionstr .= "server=$ip ";
+        }
+
+        # first hit for auth
+        if ($firsthit) { $authstr .= "firsthit "; }
+
+        # acctall for session
+        if ($acctall) { $sessionstr .= "acctall "; }
+
+        # service and protocol for account and session
+        if ($service) {
+            $accountstr .= "service=$service ";
+            $sessionstr .= "service=$service ";
+        }
+        if ($protocol) {
+            $accountstr .= "protocol=$protocol ";
+            $sessionstr .= "protocol=$protocol ";
+        }
+
+        add_tacacs( "$authstr",    "auth" );
+        add_tacacs( "$accountstr", "account" );
+        add_tacacs( "$sessionstr", "session" );
+    }
+    else { exit 1; }
+}
+
+exit 0;
diff --git a/scripts/system/vyatta_update_users.pl b/scripts/system/vyatta_update_users.pl
new file mode 100755
index 00000000..d610aacf
--- /dev/null
+++ b/scripts/system/vyatta_update_users.pl
@@ -0,0 +1,136 @@
+#!/usr/bin/perl
+
+# **** License ****
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# This code was originally developed by Vyatta, Inc.
+# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc.
+# All Rights Reserved.
+#
+# **** End License ****
+
+use strict;
+use warnings;
+
+use lib "/opt/vyatta/share/perl5";
+use Vyatta::Config;
+
+# Exit codes form useradd.8 man page
+my %reasons = (
+    0  => 'success',
+    1  => 'can´t update password file',
+    2  => 'invalid command syntax',
+    3  => 'invalid argument to option',
+    4  => 'UID already in use (and no -o)',
+    6  => 'specified group doesn´t exist',
+    9  => 'username already in use',
+    10 => 'can´t update group file',
+    12 => 'can´t create home directory',
+    13 => 'can´t create mail spool',
+);
+
+# Map of level to additional groups
+my %level_map = (
+    'admin'    => [ 'quaggavty', 'vyattacfg', 'sudo', 'adm', 'dip', 'disk' ],
+    'operator' => [ 'quaggavty', 'operator',  'adm',  'dip', ],
+);
+
+# Construct a map from existing users to group membership
+# Use space seperated format
+my %group_map;
+
+while ( my ( $name, undef, undef, $members ) = getgrent() ) {
+    foreach my $user ( split / /, $members ) {
+        my $g = $group_map{$user};
+        if ($g) {
+            my @l = split / /, $g;
+            push @l, $name;
+            $group_map{$user} = join( ' ', sort @l );
+        }
+        else {
+            $group_map{$user} = $name;
+        }
+
+    }
+}
+
+my $uconfig = new Vyatta::Config;
+$uconfig->setLevel("system login user");
+my %users = $uconfig->listNodeStatus();
+
+# we have some users
+for my $user ( keys %users ) {
+    my $status = $users{$user};
+
+    if ( $status eq 'deleted' ) {
+        if ( $user eq 'root' ) {
+            warn "User \"root\" can really be deleted\n";
+        }
+        else {
+            system("sudo userdel -r '$user'") == 0
+              or die "userdel failed: $?\n";
+        }
+    }
+    elsif ( $status eq 'added' || $status eq 'changed' ) {
+        $uconfig->setLevel("system login user $user");
+        my $pwd = $uconfig->returnValue('authentication encrypted-password');
+        $pwd or die "Encrypted password not in configuration for $user";
+
+        my $level = $uconfig->returnValue('level');
+        $level or die "Level not defined for $user";
+
+        # map level to group membership
+        my @groups = @{ $level_map{$level} };
+
+        # add any additional groups from configuration
+        push( @groups, $uconfig->returnValues('group') );
+
+        my $fname = $uconfig->returnValue('full-name');
+        my $home  = $uconfig->returnValue('home-directory');
+
+        # Read existing settings
+        my (
+            undef,    $opwd, $uid, $gid,   undef,
+            $comment, undef, $dir, $shell, undef
+        ) = getpwnam($user);
+
+        my $cmd;
+
+        # not found in existing passwd, must be new
+        if ( !defined $uid ) {
+
+            # make new user using vyatta shell
+            #  and make home directory (-m)
+            #  and with default group of 100 (users)
+            $cmd = 'useradd -s /bin/vbash -m -N';
+        }
+        else {
+
+            # If no part of password or group file changed
+            # then there is nothing to do here.
+            next
+              if ( $opwd eq $pwd
+                && ( !$fname || $fname eq $comment )
+                && ( !$home  || $home  eq $dir )
+                && join( ' ', sort @groups ) eq $group_map{$user} );
+
+            $cmd = "usermod";
+        }
+
+        $cmd .= " -p '$pwd'";
+        $cmd .= " -c \"$fname\"" if ( defined $fname );
+        $cmd .= " -d \"$home\"" if ( defined $home );
+        $cmd .= ' -G ' . join( ',', @groups );
+        system("sudo $cmd $user") == 0
+          or die "sudo $cmd $user failed: $?";
+    }
+}
+
+exit 0;