/usr/share/perl5/EBox/OpenVPN/Daemon.pm is in zentyal-openvpn 2.3.10+quantal1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package EBox::OpenVPN::Daemon;
# package: Parent class for the distinct types of OpenVPN daemons
use strict;
use warnings;
use base qw(EBox::NetworkObserver);
use File::Slurp;
use Error qw(:try);
use EBox::NetWrappers;
use EBox::Service;
use constant UPSTART_DIR => '/etc/init';
use constant RUN_DIR => '/var/run/';
sub new
{
my ($class, $row) = @_;
my $self = {};
$self->{row} = $row;
bless $self, $class;
return $self;
}
sub _openvpnModule
{
my ($self) = @_;
return EBox::Global->modInstance('openvpn');
}
#
# Method: init
#
# Must be implimented by child to do initalisation stuff
#
# Parametes:
# $name - the name of the daemon
# @params - initialization parameters, may be different for each daemon type
#
sub init
{
throw EBox::Exceptions::NotImplemented('init method');
}
#
# Method: name
#
# Returns:
# the name of the daemon
sub name
{
my ($self) = @_;
return $self->_rowAttr('name');
}
sub type
{
throw EBox::Exceptions::NotImplemented('type class method');
}
sub isEnabled
{
my ($self) = @_;
return $self->_rowAttr('service');
}
sub _rowAttr
{
my ($self, $name) = @_;
my $element = $self->{row}->elementByName($name);
return $element->value();
}
sub _configAttr
{
my ($self, $name) = @_;
my $config =
$self->{row}->elementByName('configuration')->foreignModelInstance();
return $config->value($name);
}
#
# Method: upstartName
#
# Returns:
# the name of the upstart service that controls the daemon
sub upstartName
{
my ($self) = @_;
return __PACKAGE__->upstartNameForDaemon($self->name(), $self->type());
}
#
# Method: upstartNameForDaemon
#
# Parameters:
#
# $type - daemon's type
# $name - daemons's ma,e
#
# Returns:
# the name of the upstart service for the daemon type and name given
sub upstartNameForDaemon
{
my ($class, $name, $type) = @_;
$type
or throw EBox::Exceptions::MissingArgument('type');
$name
or throw EBox::Exceptions::MissingArgument('name');
return 'ebox.openvpn.' . $type . '.' . $name;
}
sub _upstartFile
{
my ($self) = @_;
return __PACKAGE__->_upstartFileForDaemon($self->name(), $self->type());
}
sub _upstartFileForDaemon
{
my ($class, $name, $type) = @_;
return UPSTART_DIR . '/' . $class->upstartNameForDaemon($name, $type) .
'.conf';
}
sub ifaceNumber
{
my ($self) = @_;
return $self->_rowAttr('interfaceNumber');
}
#
# Method: iface
#
# get the iface device name used for this daemon
#
# Returns:
# - the device name
sub iface
{
my ($self) = @_;
my $ifaceType = $self->ifaceType();
my $number = $self->ifaceNumber();
return "$ifaceType$number";
}
#
# Method: ifaceType
#
# get the iface device type used for this daemon
#
# Returns:
# - the device type
sub ifaceType
{
my ($self) = @_;
return $self->_rowAttr('interfaceType');
}
#
# Method: ifaceAddress
#
# get the vpn's iface address
#
# Returns:
# - the address in CIDR notation or undef if the interface has not address
sub ifaceAddress
{
my ($self) = @_;
my $iface = $self->iface();
if (not EBox::NetWrappers::iface_exists($iface)) {
return undef;
}
if (not EBox::NetWrappers::iface_is_up($iface)) {
return undef;
}
my %addresses =
%{ EBox::NetWrappers::iface_addresses_with_netmask($iface) };
my $nAddresses = keys %addresses;
if ($nAddresses == 0) {
EBox::error("No address found for interface $iface");
return undef;
}elsif ($nAddresses > 1) {
EBox::warn(
'More than one address for $iface interface. Only one of them will be shown' );
}
my ($addr, $netmask) = each %addresses;
my $cidrAddr = EBox::NetWrappers::to_network_with_mask($addr, $netmask);
return $cidrAddr;
}
#
# Method: user
#
# Return the user will be used to run the daemon
# after root drops privileges
# Returns:
# string - the user which will be run the daemon after the initialization
sub user
{
my ($self) = @_;
return $self->_openvpnModule->user();
}
# Method: group
#
# Return the user will be used to run the daemon
# after root drops privileges
#
# Returns:
# string - the group which will be run the daemon after the initialization
sub group
{
my ($self) = @_;
return $self->_openvpnModule->group();
}
#
# Method: dh
#
# Returns:
# the diffie-hellman parameters file used by the daemon
sub dh
{
my ($self) = @_;
return $self->_openvpnModule->dh();
}
sub logFile
{
my ($self) = @_;
return $self->_logFile('');
}
sub statusLogFile
{
my ($self) = @_;
return $self->_logFile('status-');
}
sub _logFile
{
my ($self, $prefix) = @_;
my $logDir = $self->_openvpnModule->logDir();
my $file = $logDir . "/$prefix" . $self->name() . '.log';
return $file;
}
# Method: internal
#
# tell wether the client must been internal for users in the UI or nodaemon
# is a internal daemon used and created by other EBox services
#
# Returns:
# returns the daemon's internal state
sub internal
{
throw EBox::Exceptions::NotImplemented(
'Must be immplemented in subclasses');
}
# Method: createDirectories
#
# Create the directory structure needed for the daemon if it does not exists.
# Default empty implementation
sub createDirectories
{
}
# Method: confFile
#
# get the configuration file for this daemon
#
# Parameters:
# confDir - directory where the configuration file will be stored
#
# Returns:
# - the path of the configuration file
sub confFile
{
my ($self, $confDir) = @_;
my $name = $self->name();
return __PACKAGE__->confFileForName($name, $confDir);
}
sub confFileForName
{
my ($package, $name, $confDir) = @_;
defined $confDir
or throw EBox::Exceptions::MissingArgument('confDir');
defined $name
or throw EBox::Exceptions::MissingArgument('name');
return "$confDir/$name.d/$name.conf";
}
#
# Method: writeConfFile
#
# write the daemon's configuration file
#
# Parameters:
# confDir - directory where the configuration file will be stored
#
sub writeConfFile
{
my ($self, $confDir) = @_;
return if not $self->isEnabled();
my $confFilePath = $self->confFile($confDir);
my $templatePath = $self->confFileTemplate();
my $templateParams = $self->confFileParams(confDir => $confDir);
push @{$templateParams},
(
logFile => $self->logFile(),
statusLogFile => $self->statusLogFile(),
pidFile => $self->_pidFile(),
);
my $fileAttrs = {
uid => 0,
gid => 0,
mode => '0400',
};
EBox::Module::Base::writeConfFileNoCheck(
$confFilePath, $templatePath,
$templateParams, $fileAttrs
);
}
#
# Method: confFileTemplate
#
# Abstract method. Must return the configuration file template
#
# Returns:
# the mason path of the configuration file template
sub confFileTemplate
{
throw EBox::Exceptions::NotImplemented();
}
#
# Method: daemonFiles
#
# Get a list with the files and directories generated by the given
# daemon. Paths must be absolute. Directories contents are not included
#
# This is a default implementation, specifics daemon classes may want to
# override this to include their additional files
#
# Parameters:
# $name - daemon name
#
# Returns:
# a list with each path as string
sub daemonFiles
{
my ($class, $name) = @_;
my $confDir = $class->_openvpnModule->confDir();
my $confFile = $class->confFileForName($name, $confDir);
return ($confFile);
}
#
# Method: confFileParams
#
# Abstract method. Must return the configuration file template parameters
#
# Returns:
# a reference to the parameter's list
sub confFileParams
{
throw EBox::Exceptions::NotImplemented();
}
#
# Method: ripDaemon
#
# Abstract method. Must return the configuration file template
#
#
# Returns:
# undef if no ripDaemon is needed by the openvpn's daemon
# if the ripDaemons is needed it must return a hash refrence with the
# following keys:
# iface - a hash ref returned from the method ifaceWithRipPasswd
# redistribute - wether the daemon wants to redistribute routes or not
sub ripDaemon
{
throw EBox::Exceptions::NotImplemented();
}
# Method: ifaceWithRipPasswd
#
# return a reference to a hash with the interface information needed to
# configure the ripd daemon
#
# Returns:
# hash reference with the following fields
# ifaceName - name of the network interface
# passwd - rip password for this daemon
sub ifaceWithRipPasswd
{
my ($self) = @_;
my $iface = $self->iface;
my $passwd = $self->ripPasswd;
return {
ifaceName => $iface,
passwd => $passwd,
};
}
# Method: ripPasswd
#
# get the password used by this daemon to secure RIP transmissions
#
# Returns:
# the password as string (empty string if the password wasn't set)
sub ripPasswd
{
my ($self) = @_;
my $passwd = $self->_configAttr('ripPasswd');
defined $passwd or $passwd = ''; # in some cases it may be optional it may
# be undefined
return $passwd;
}
# Method: setRipPasswd
#
# set the password used by this daemon to secure RIP transmissions
#
# Parameters:
# passwd - string
sub setRipPasswd
{
my ($self, $passwd) = @_;
throw EBox::Exceptions::NotImplemented('setRipPasswd');
}
# Method: start
#
# Start the daemon
sub start
{
my ($self) = @_;
EBox::Service::manage($self->upstartName, 'start');
}
#
# Method: stop
#
# Stop the daemon
sub stop
{
my ($self) = @_;
EBox::Service::manage($self->upstartName, 'stop');
}
sub stopDeletedDaemon
{
my ($class, $name, $type) = @_;
$class->isa('EBox::OpenVPN::Daemon')
or throw EBox::Exceptions::Internal(
"$class is not a openvpn's daemon class");
# see if we have upstart service
my $upstartFile = $class->_upstartFileForDaemon($name, $type);
if (not -f $upstartFile) {
return;
}
my $upstartService = $class->upstartNameForDaemon($name, $type);
EBox::Service::manage($upstartService, 'stop');
}
sub deletedDaemonCleanup
{
my ($class, $name) = @_;
my $type = $class->type();
try {
$class->stopDeletedDaemon($name, $type);
$class->removeUpstartFileForDaemon($name, $type);
foreach my $file( $class->daemonFiles($name) ) {
EBox::Sudo::root("rm -rf '$file'");
}
}
otherwise {
my $ex = shift;
EBox::error(
"Failure when cleaning up the deleted openvpn daemon $name. Possibly you will need to do some manual cleanup"
);
$ex->throw();
};
}
sub _rootCommandForStartDaemon
{
my ($self) = @_;
my $name = $self->name();
my $bin = $self->_openvpnModule->openvpnBin();
my $confDir = $self->_openvpnModule->confDir();
my $confFilePath = $self->confFile($confDir);
my $pidFile = $self->_pidFile();
return "$bin --syslog '$name' --config '$confFilePath'";
}
# Method: limitRespawn
#
# Return if the respawn for the openvpn is limited to 5 times
# within 40 seconds
#
# Returns:
#
# Boolean - indicating the respawning process is limited
#
sub limitRespawn
{
return 0;
}
# Method: _pidFile
#
# Get the PID file to write to check the status afterwards
#
# Returns:
#
# String - the path to the PID file for this daemon
#
sub _pidFile
{
my ($self) = @_;
return RUN_DIR . 'openvpn.' . $self->name() . '.pid';
}
# Method: pid
#
# Returns:
# the pid of the daemon or undef if isn't running
sub pid
{
my ($self) = @_;
my $pid;
try {
$pid = File::Slurp::read_file($self->_pidFile());
}
otherwise {
$pid = undef;
};
return $pid;
}
#
# Method: isRunning
#
# Returns:
# bool - whether the daemon is running
sub isRunning
{
my ($self) = @_;
if (not -f $self->_upstartFile()) {
return undef;
}
return EBox::Service::running($self->upstartName);
}
sub writeUpstartFile
{
my ($self) = @_;
my $path = $self->_upstartFile();
my $cmd = $self->_rootCommandForStartDaemon();
my $limited = $self->limitRespawn();
my $fileAttrs = {
uid => 0,
gid => 0,
mode => '0644',
};
EBox::Module::Base::writeConfFileNoCheck(
$path, '/openvpn/upstart.mas',
[ cmd => $cmd, limited => $limited],
$fileAttrs
);
}
sub removeUpstartFile
{
my ($self) = @_;
my $path = $self->_upstartFile();
EBox::Sudo::root("rm -f '$path'");
}
sub removeUpstartFileForDaemon
{
my ($class, $name, $type) = @_;
$type
or throw EBox::Exceptions::MissingArgument('type');
$name
or throw EBox::Exceptions::MissingArgument('name');
my $path = $class->_upstartFileForDaemon($name, $type);
EBox::Sudo::root("rm -f '$path'");
}
#
# Method: summary
#
# Abstract method. May be implemented by any daemon which wants his summary section
#
# Returns:
# the summary data as list; the first element will be the title of the summary
# section and the following pairs will be usd to build EBox::Summary::Value objects
sub summary
{
my ($self) = @_;
return ();
}
1;
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