1 files changed, 690 insertions, 0 deletions
diff --git a/dynamic-layers/meta-perl/recipes-security/bastille/files/ServiceAdmin.pm b/dynamic-layers/meta-perl/recipes-security/bastille/files/ServiceAdmin.pm
new file mode 100644
index 0000000..879223a
--- /dev/null
+++ b/dynamic-layers/meta-perl/recipes-security/bastille/files/ServiceAdmin.pm
@@ -0,0 +1,690 @@
+package Bastille::API::ServiceAdmin;
+use strict;
+use Bastille::API;
+use Bastille::API::HPSpecific;
+use Bastille::API::FileContent;
+require Exporter;
+our @ISA = qw(Exporter);
+our @EXPORT_OK = qw(
+B_chkconfig_on
+B_chkconfig_off
+B_service_start
+B_service_stop
+B_service_restart
+B_is_service_off
+checkServiceOnLinux
+remoteServiceCheck
+remoteNISPlusServiceCheck
+B_create_nsswitch_file
+);
+our @EXPORT = @EXPORT_OK;
+#######
+# &B_chkconfig_on and &B_chkconfig_off() are great for systems that didn't use
+# a more modern init system.  This is a bit of a problem on Fedora, though,
+# which used upstart from Fedora 9 to Fedora 14, then switched to a new
+# Red Hat-created system called systemd for Fedora 15 and 16 (so far).
+# OpenSUSE also moved to systemd, starting with 12.1.  Version 11.4 did not
+# use systemd.
+# It is also a problem on Ubuntu, starting at version 6.10, where they also
+# used upstart.
+#####
+###########################################################################
+# &B_chkconfig_on ($daemon_name) creates the symbolic links that are
+# named in the "# chkconfig: ___ _ _ " portion of the init.d files.  We
+# need this utility, in place of the distro's chkconfig, because of both
+# our need to add revert functionality and our need to harden distros that
+# are not mounted on /.
+#
+# It uses the following global variables to find the links and the init
+# scripts, respectively:
+#
+#   &getGlobal('DIR', "rcd")    -- directory where the rc_.d subdirs can be found
+#   &getGlobal('DIR', "initd")  -- directory the rc_.d directories link to
+#
+# Here an example of where you might use this:
+#
+# You'd like to tell the system to run the firewall at boot:
+#       B_chkconfig_on("bastille-firewall")
+#
+###########################################################################
+# PW: Blech. Copied B_chkconfig_off() and changed a few things,
+#               then changed a few more things....
+sub B_chkconfig_on {
+    my $startup_script=$_[0];
+    my $retval=1;
+    my $chkconfig_line;
+    my ($runlevelinfo,@runlevels);
+    my ($start_order,$stop_order,$filetolink);
+    &B_log("ACTION","# chkconfig_on enabling $startup_script\n");
+    # In Debian system there is no chkconfig script, run levels are checked
+    # one by one (jfs)
+    if (&GetDistro =~/^DB.*/) {
+            $filetolink = &getGlobal('DIR', "initd") . "/$startup_script";
+            if (-x $filetolink)
+            {
+                    foreach my $level ("0","1","2","3","4","5","6" ) {
+                            my $link = '';
+                            $link = &getGlobal('DIR', "rcd") . "/rc" . "$level" . ".d/K50" . "$startup_script";
+                            $retval=symlink($filetolink,$link);
+                    }
+            }
+            return $retval;
+    }
+    #
+    # On SUSE, chkconfig-based rc scripts have been replaced with a whole different
+    # system.  chkconfig on SUSE is actually a shell script that does some stuff and then
+    # calls insserv, their replacement.
+    #
+    if (&GetDistro =~ /^SE/) {
+        # only try to chkconfig on if init script is found
+        if ( -e (&getGlobal('DIR', "initd") . "/$startup_script") ) {
+            $chkconfig_line=&getGlobal('BIN','chkconfig');
+            &B_System("$chkconfig_line $startup_script on", "$chkconfig_line $startup_script off");
+            # chkconfig doesn't take affect until reboot, need to restart service also
+            B_service_restart("$startup_script");
+            return 1; #success
+        }
+        return 0; #failure
+    }
+    #
+    # Run through the init script looking for the chkconfig line...
+    #
+    $retval = open CHKCONFIG,&getGlobal('DIR', "initd") . "/$startup_script";
+    unless ($retval) {
+        &B_log("ACTION","# Didn't chkconfig_on $startup_script because we couldn't open " . &getGlobal('DIR', "initd") . "/$startup_script\n");
+    }
+    else {
+      READ_LOOP:
+        while (my $line=<CHKCONFIG>) {
+            # We're looking for lines like this one:
+            #      # chkconfig: 2345 10 90
+            # OR this
+            #      # chkconfig: - 10 90
+            if ($line =~ /^#\s*chkconfig:\s*([-\d]+)\s*(\d+)\s*(\d+)/ ) {
+                $runlevelinfo = $1;
+                $start_order = $2;
+                $stop_order = $3;
+                # handle a run levels arg of '-'
+                if ( $runlevelinfo eq '-' ) {
+                    &B_log("ACTION","chkconfig_on saw '-' for run levels for \"$startup_script\", is defaulting to levels 3,4,5\n");
+                    $runlevelinfo = '345';
+                }
+                @runlevels = split(//,$runlevelinfo);
+                # make sure the orders have 2 digits
+                $start_order =~ s/^(\d)$/0$1/;
+                $stop_order =~ s/^(\d)$/0$1/;
+                last READ_LOOP;
+            }
+        }
+        close CHKCONFIG;
+        # Do we have what we need?
+        if ( (scalar(@runlevels) < 1) || (! $start_order =~ /^\d{2}$/) || (! $stop_order =~ /^\d{2}$/) ) {
+                # problem
+                &B_log("ERROR","# B_chkconfig_on $startup_script failed -- no valid run level/start/stop info found\n");
+                return(-1);
+        }
+        # Now, run through creating symlinks...
+        &B_log("ACTION","# chkconfig_on will use run levels ".join(",",@runlevels)." for \"$startup_script\" with S order $start_order and K order $stop_order\n");
+        $retval=0;
+        # BUG: we really ought to readdir() on &getGlobal('DIR', "rcd") to get all levels
+        foreach my $level ( "0","1","2","3","4","5","6" ) {
+                my $link = '';
+                # we make K links in run levels not specified in the chkconfig line
+                $link = &getGlobal('DIR', "rcd") . "/rc" . $level . ".d/K$stop_order" . $startup_script;
+                my $klink = $link;
+                # now we see if this is a specified run level; if so, make an S link
+                foreach my $markedlevel ( @runlevels ) {
+                        if ( $level == $markedlevel) {
+                                $link = &getGlobal('DIR', "rcd") . "/rc" . $level . ".d/S$start_order" . $startup_script;
+                        }
+                }
+                my $target = &getGlobal('DIR', "initd") ."/" . $startup_script;
+                my $local_return;
+                if ( (-e "$klink") && ($klink ne $link) ) {
+                    # there's a K link, but this level needs an S link
+                    unless ($GLOBAL_LOGONLY) {
+                        $local_return = unlink("$klink");
+                        if ( ! $local_return ) {
+                            # unlinking old, bad $klink failed
+                            &B_log("ERROR","Unlinking $klink failed\n");
+                        } else {
+                            &B_log("ACTION","Removed link $klink\n");
+                            # If we removed the link, add a link command to the revert file
+                            &B_revert_log (&getGlobal('BIN','ln') . " -s $target $klink\n");
+                        } # close what to do if unlink works
+                    }   # if not GLOBAL_LOGONLY
+                }       # if $klink exists and ne $link
+                # OK, we've disposed of any old K links, make what we need
+                if ( (! ( -e "$link" )) && ($link ne '') ) {
+                    # link doesn't exist and the start/stop number is OK; make it
+                    unless ($GLOBAL_LOGONLY) {
+                        # create the link
+                        $local_return = &B_symlink($target,$link);
+                        if ($local_return) {
+                            $retval++;
+                            &B_log("ACTION","Created link $link\n");
+                        } else {
+                            &B_log("ERROR","Couldn't create $link when trying to chkconfig on $startup_script\n");
+                        }
+                    }
+                } # link doesn't exist
+            } # foreach level
+    }
+    if ($retval < @runlevels) {
+        $retval=0;
+    }
+    $retval;
+}
+###########################################################################
+# &B_chkconfig_off ($daemon_name) deletes the symbolic links that are
+# named in the "# chkconfig: ___ _ _ " portion of the init.d files.  We
+# need this utility, in place of the distro's chkconfig, because of both
+# our need to add revert functionality and our need to harden distros that
+# are not mounted on /.
+#
+# chkconfig allows for a REVERT of its work by writing to an executable
+# file &getGlobal('BFILE', "removed-symlinks").
+#
+# It uses the following global variables to find the links and the init
+# scripts, respectively:
+#
+#   &getGlobal('DIR', "rcd")    -- directory where the rc_.d subdirs can be found
+#   &getGlobal('DIR', "initd")  -- directory the rc_.d directories link to
+#
+# Here an example of where you might use this:
+#
+# You'd like to tell stop running sendmail in daemon mode on boot:
+#       B_chkconfig_off("sendmail")
+#
+###########################################################################
+sub B_chkconfig_off {
+    my $startup_script=$_[0];
+    my $retval=1;
+    my $chkconfig_line;
+    my @runlevels;
+    my ($start_order,$stop_order,$filetolink);
+    if (&GetDistro =~/^DB.*/) {
+            $filetolink = &getGlobal('DIR', "initd") . "/$startup_script";
+            if (-x $filetolink)
+            {
+                    # Three ways to do this in Debian:
+                    # 1.- have the initd script set to 600 mode
+                    # 2.- Remove the links in rcd (re-installing the package
+                    # will break it)
+                    # 3.- Use update-rc.d --remove (same as 2.)
+                    # (jfs)
+                    &B_chmod(0600,$filetolink);
+                    $retval=6;
+                    # The second option
+                    #foreach my $level ("0","1","2","3","4","5","6" ) {
+                    #my $link = '';
+                    #$link = &getGlobal('DIR', "rcd") . "/rc" . "$level" . ".d/K50" . "$startup_script";
+                    #unlink($link);
+                    #}
+            }
+    }
+    #
+    # On SUSE, chkconfig-based rc scripts have been replaced with a whole different
+    # system.  chkconfig on SUSE is actually a shell script that does some stuff and then
+    # calls insserv, their replacement.
+    #
+    elsif (&GetDistro =~ /^SE/) {
+        # only try to chkconfig off if init script is found
+        if ( -e (&getGlobal('DIR', "initd") . "/$startup_script") ) {
+            $chkconfig_line=&getGlobal('BIN','chkconfig');
+            &B_System("$chkconfig_line $startup_script on", "$chkconfig_line $startup_script off");
+            # chkconfig doesn't take affect until reboot, need to stop service
+            # since expectation is that the daemons are disabled even without a reboot
+            B_service_stop("$startup_script");
+            return 1; #success
+        }
+        return 0; #failure
+    }
+    else {
+            # Run through the init script looking for the chkconfig line...
+            $retval = open CHKCONFIG,&getGlobal('DIR', "initd") . "/$startup_script";
+            unless ($retval) {
+                    &B_log("ACTION","Didn't chkconfig_off $startup_script because we couldn't open " . &getGlobal('DIR', "initd") . "/$startup_script\n");
+            }
+            else {
+                    READ_LOOP:
+                    while (my $line=<CHKCONFIG>) {
+                            # We're looking for lines like this one:
+                            #      # chkconfig: 2345 10 90
+                            if ($line =~ /^#\s*chkconfig:\s*([-\d]+)\s*(\d+)\s*(\d+)/ ) {
+                                    @runlevels=split //,$1;
+                                    $start_order=$2;
+                                    $stop_order=$3;
+                                    # Change single digit run levels to double digit -- otherwise,
+                                    # the alphabetic ordering chkconfig depends on fails.
+                                    if ($start_order =~ /^\d$/ ) {
+                                            $start_order = "0" . $start_order;
+                                            &B_log("ACTION","chkconfig_off converted start order to $start_order\n");
+                                    }
+                                    if ($stop_order =~ /^\d$/ ) {
+                                            $stop_order = "0" . $stop_order;
+                                            &B_log("ACTION","chkconfig_off converted stop order to $stop_order\n");
+                                    }
+                                    last READ_LOOP;
+                            }
+                    }
+                    close CHKCONFIG;
+                    # If we never found a chkconfig line, can we just run through all 5
+                    # rcX.d dirs from 1 to 5...?
+                    # unless ( $start_order and $stop_order ) {
+                    #    @runlevels=("1","2","3","4","5");
+                    #    $start_order = "*"; $stop_order="*";
+                    # }
+                    # Now, run through removing symlinks...
+                    $retval=0;
+                    # Handle the special case that the run level specified is solely "-"
+                    if ($runlevels[0] =~ /-/) {
+                            @runlevels = ( "0","1","2","3","4","5","6" );
+                    }
+                    foreach my $level ( @runlevels ) {
+                            my $link = &getGlobal('DIR', "rcd") . "/rc" . $level . ".d/S$start_order" . $startup_script;
+                            my $new_link = &getGlobal('DIR', "rcd") . "/rc" . $level . ".d/K$stop_order" . $startup_script;
+                            my $target = &getGlobal('DIR', "initd") ."/" . $startup_script;
+                            my $local_return;
+                            # Replace the S__ link in this level with a K__ link.
+                            if ( -e $link ) {
+                                    unless ($GLOBAL_LOGONLY) {
+                                            $local_return=unlink $link;
+                                            if ($local_return) {
+                                                    $local_return=symlink $target,$new_link;
+                                                    unless ($local_return) {
+                                                            &B_log("ERROR","Linking $target to $new_link failed.\n");
+                                                    }
+                                            }
+                                            else {  # unlinking failed
+                                                    &B_log("ERROR","Unlinking $link failed\n");
+                                            }
+                                    }
+                                    if ($local_return) {
+                                            $retval++;
+                                            &B_log("ACTION","Removed link $link\n");
+                                            #
+                                            # If we removed the link, add a link command to the revert file
+                                            # Write out the revert information for recreating the S__
+                                            # symlink and deleting the K__ symlink.
+                                            &B_revert_log(&getGlobal('BIN',"ln") . " -s $target $link\n");
+                                            &B_revert_log(&getGlobal('BIN',"rm") . " -f $new_link\n");
+                                    }
+                                    else {
+                                            &B_log("ERROR","B_chkconfig_off $startup_script failed\n");
+                                    }
+                            }
+                    } # foreach
+            } # else-unless
+    } # else-DB
+    if ($retval < @runlevels) {
+            $retval=0;
+    }
+    $retval;
+}
+###########################################################################
+# &B_service_start ($daemon_name)
+# Starts service on RedHat/SUSE-based Linux distributions which have the
+# service command:
+#
+#       service $daemon_name start
+#
+# Other Linux distros that also support this method of starting
+# services can be added to use this function.
+#
+# Here an example of where you might use this:
+#
+# You'd like to tell the system to start the vsftpd daemon:
+#       &B_service_start("vsftpd")
+#
+# Uses &B_System in HP_API.pm
+# To match how the &B_System command works this method:
+# returns 1 on success
+# returns 0 on failure
+###########################################################################
+sub B_service_start {
+    my $daemon=$_[0];
+    if ( (&GetDistro !~ /^SE/) and (&GetDistro !~ /^RH/) and
+        (&GetDistro !~ /^RHFC/) and (&GetDistro !~ /^MN/) ) {
+        &B_log("ERROR","Tried to call service_start on a system lacking a service command! Internal Bastille error.");
+       return undef;
+    }
+    # only start service if init script is found
+    if ( -e (&getGlobal('DIR', 'initd') . "/$daemon") ) {
+        &B_log("ACTION","# service_start enabling $daemon\n");
+        my $service_cmd=&getGlobal('BIN', 'service');
+        if ($service_cmd) {
+            # Start the service,
+            # Also provide &B_System revert command
+            return (&B_System("$service_cmd $daemon start",
+                              "$service_cmd $daemon stop"));
+        }
+    }
+    # init script not found, do not try to start, return failure
+    return 0;
+}
+###########################################################################
+# &B_service_stop ($daemon_name)
+# Stops service on RedHat/SUSE-based Linux distributions which have the
+# service command:
+#
+#       service $daemon_name stop
+#
+# Other Linux distros that also support this method of starting
+# services can be added to use this function.
+# Stops service.
+#
+#
+# Here an example of where you might use this:
+#
+# You'd like to tell the system to stop the vsftpd daemon:
+#       &B_service_stop("vsftpd")
+#
+# Uses &B_System in HP_API.pm
+# To match how the &B_System command works this method:
+# returns 1 on success
+# returns 0 on failure
+###########################################################################
+sub B_service_stop {
+    my $daemon=$_[0];
+    if ( (&GetDistro !~ /^SE/) and (&GetDistro !~ /^RH/) and
+        (&GetDistro !~ /^RHFC/) and (&GetDistro !~ /^MN/) ) {
+        &B_log("ERROR","Tried to call service_stop on a system lacking a service command! Internal Bastille error.");
+       return undef;
+    }
+    # only stop service if init script is found
+    if ( -e (&getGlobal('DIR', 'initd') . "/$daemon") ) {
+        &B_log("ACTION","# service_stop disabling $daemon\n");
+        my $service_cmd=&getGlobal('BIN', 'service');
+        if ($service_cmd) {
+        # Stop the service,
+        # Also provide &B_System revert command
+           return (&B_System("$service_cmd $daemon stop",
+                             "$service_cmd $daemon start"));
+        }
+    }
+    # init script not found, do not try to stop, return failure
+    return 0;
+}
+###########################################################################
+# &B_service_restart ($daemon_name)
+# Restarts service on RedHat/SUSE-based Linux distributions which have the
+# service command:
+#
+#       service $daemon_name restart
+#
+# Other Linux distros that also support this method of starting
+# services can be added to use this function.
+#
+# Here an example of where you might use this:
+#
+# You'd like to tell the system to restart the vsftpd daemon:
+#       &B_service_restart("vsftpd")
+#
+# Uses &B_System in HP_API.pm
+# To match how the &B_System command works this method:
+# returns 1 on success
+# returns 0 on failure
+###########################################################################
+sub B_service_restart {
+    my $daemon=$_[0];
+    if ( (&GetDistro !~ /^SE/) and (&GetDistro !~ /^RH/) and
+        (&GetDistro !~ /^RHFC/) and (&GetDistro !~ /^MN/) ) {
+        &B_log("ERROR","Tried to call service_restart on a system lacking a service command! Internal Bastille error.");
+       return undef;
+    }
+    # only restart service if init script is found
+    if ( -e (&getGlobal('DIR', 'initd') . "/$daemon") ) {
+        &B_log("ACTION","# service_restart re-enabling $daemon\n");
+        my $service_cmd=&getGlobal('BIN', 'service');
+        if ($service_cmd) {
+            # Restart the service
+            return (&B_System("$service_cmd $daemon restart",
+                              "$service_cmd $daemon restart"));
+        }
+    }
+    # init script not found, do not try to restart, return failure
+    return 0;
+}
+###########################################################################
+# &B_is_service_off($;$)
+#
+# Runs the specified test to determine whether or not the question should
+# be answered.
+#
+# return values:
+# NOTSECURE_CAN_CHANGE()/0:     service is on
+# SECURE_CANT_CHANGE()/1:     service is off
+# undef: test is not defined
+###########################################################################
+sub B_is_service_off ($){
+   my $service=$_[0];
+   if(&GetDistro =~ "^HP-UX"){
+     #die "Why do I think I'm on HPUX?!\n";
+     return &checkServiceOnHPUX($service);
+   }
+   elsif ( (&GetDistro =~ "^RH") || (&GetDistro =~ "^SE") ) {
+     return &checkServiceOnLinux($service);
+   }
+   else {
+    &B_log("DEBUG","B_is_service off called for unsupported OS");
+     # not yet implemented for other distributions of Linux
+     # when GLOBAL_SERVICE, GLOBAL_SERVTYPE and GLOBAL_PROCESS are filled
+     # in for Linux, then
+     # at least inetd and inittab services should be similar to the above,
+     # whereas chkconfig would be used on some Linux distros to determine
+     # if non-inetd/inittab services are running at boot time.  Looking at
+     # processes should be similar.
+     return undef;
+   }
+}
+###########################################################################
+# &checkServiceOnLinux($service);
+#
+# Checks if the given service is running on a Linux system.  This is
+# called by B_is_Service_Off(), which is the function that Bastille
+# modules should call.
+#
+# Return values:
+# NOTSECURE_CAN_CHANGE() if the service is on
+# SECURE_CANT_CHANGE() if the service is off
+# undef if the state of the service cannot be determined
+#
+###########################################################################
+sub checkServiceOnLinux($) {
+  my $service=$_[0];
+  # get the list of parameters which could be used to initiate the service
+  # (could be in /etc/rc.d/rc?.d, /etc/inetd.conf, or /etc/inittab, so we
+  # check all of them)
+  
+  my @params = @{ &getGlobal('SERVICE', $service) };
+  my $chkconfig = &getGlobal('BIN', 'chkconfig');
+  my $grep = &getGlobal('BIN', 'grep');
+  my $inittab = &getGlobal('FILE', 'inittab');
+  my $serviceType = &getGlobal('SERVTYPE', $service);;
+  # A kludge to get things running because &getGlobal('SERVICE' doesn't
+  # return the expected values.
+  @params = ();
+  push (@params, $service);
+  foreach my $param (@params) {
+    &B_log("DEBUG","Checking to see if service $service is off.\n");
+    if ($serviceType =~ /rc/) {
+      my $on = &B_Backtick("$chkconfig --list $param 2>&1");
+      if ($on =~ /^$param:\s+unknown/) {
+          # This service isn't installed on the system
+          return NOT_INSTALLED();
+      }
+      if ($on =~ /^error reading information on service $param: No such file or directory/) {
+          # This service isn't installed on the system
+          return NOT_INSTALLED();
+      }
+      if ($on =~ /^error/) {
+          # This probably
+          &B_log("DEBUG","chkconfig returned: $param=$on\n");
+          return undef;
+      }
+      $on =~ s/^$param\s+//;            # remove the service name and spaces
+      $on =~ s/[0-6]:off\s*//g;         # remove any runlevel:off entries
+      $on =~ s/:on\s*//g;               # remove the :on from the runlevels
+      # what remains is a list of runlevels in which the service is on,
+      # or a null string if it is never turned on
+      chomp $on;                        # newline should be gone already (\s)
+      &B_log("DEBUG","chkconfig returned: $param=$on\n");
+      if ($on =~ /^\d+$/) {
+        # service is not off
+        ###########################   BREAK out, don't skip question
+        return NOTSECURE_CAN_CHANGE();
+      }
+  }
+    elsif ($serviceType =~ /inet/) {
+        my $on = &B_Backtick("$chkconfig --list $param 2>&1");
+        if ($on =~ /^$param:\s+unknown/) {
+            # This service isn't installed on the system
+            return NOT_INSTALLED();
+        }
+        if ($on =~ /^error reading information on service $param: No such file or directory/) {
+            # This service isn't installed on the system
+            return NOT_INSTALLED();
+        }
+        if ($on =~ /^error/ ) {
+         # Something else is wrong?
+         # return undef
+         return undef;
+     }
+      if ($on =~ tr/\n// > 1) {
+        $on =~ s/^xinetd.+\n//;
+      }
+      $on =~ s/^\s*$param:?\s+//;       # remove the service name and spaces
+      chomp $on;                        # newline should be gone already (\s)
+      &B_log("DEBUG","chkconfig returned: $param=$on\n");
+      if ($on =~ /^on$/) {
+        # service is not off
+        ###########################   BREAK out, don't skip question
+        return NOTSECURE_CAN_CHANGE();
+      }
+    }
+    else {
+      # perhaps the service is started by inittab
+      my $inittabline = &B_Backtick("$grep -E '^[^#].{0,3}:.*:.+:.*$param' $inittab");
+      if ($inittabline =~ /.+/) {  # . matches anything except newlines
+        # service is not off
+        &B_log("DEBUG","Checking inittab; found $inittabline\n");
+        ###########################   BREAK out, don't skip question
+        return NOTSECURE_CAN_CHANGE();
+      }
+    }
+  }  # foreach my $param
+  # boot-time parameters are not set; check processes
+  # Note the checkProcsforService returns INCONSISTENT() if a process is found
+  # assuming the checks above
+  return &checkProcsForService($service);
+}
+1;