diff options
Diffstat (limited to 'puppet/modules/site_openvpn')
| -rw-r--r-- | puppet/modules/site_openvpn/README | 20 | ||||
| -rw-r--r-- | puppet/modules/site_openvpn/manifests/init.pp | 166 | ||||
| -rw-r--r-- | puppet/modules/site_openvpn/manifests/resolver.pp | 96 | ||||
| -rw-r--r-- | puppet/modules/site_openvpn/manifests/server_config.pp | 17 | ||||
| -rw-r--r-- | puppet/modules/site_openvpn/templates/add_gateway_ips.sh.erb | 11 |
5 files changed, 244 insertions, 66 deletions
diff --git a/puppet/modules/site_openvpn/README b/puppet/modules/site_openvpn/README new file mode 100644 index 00000000..cef5be23 --- /dev/null +++ b/puppet/modules/site_openvpn/README @@ -0,0 +1,20 @@ +Place to look when debugging problems +======================================== + +Log files: + + openvpn: /var/log/syslog + shorewall: /var/log/syslog + shorewall startup: /var/log/shorewall-init.log + +Check NAT masq: + + iptables -t nat --list-rules + +Check interfaces: + + ip addr ls + +Scripts: + + /usr/local/bin/add_gateway_ips.sh
\ No newline at end of file diff --git a/puppet/modules/site_openvpn/manifests/init.pp b/puppet/modules/site_openvpn/manifests/init.pp index e3d2a9af..4f900623 100644 --- a/puppet/modules/site_openvpn/manifests/init.pp +++ b/puppet/modules/site_openvpn/manifests/init.pp @@ -1,55 +1,141 @@ +# +# An openvpn gateway can support three modes: +# +# (1) limited and unlimited +# (2) unlimited only +# (3) limited only +# +# The difference is that 'unlimited' gateways only allow client certs that match the 'unlimited_prefix', +# and 'limited' gateways only allow certs that match the 'limited_prefix'. +# +# We potentially create four openvpn config files (thus four daemons): +# +# (1) unlimited + tcp => tcp_config.conf +# (2) unlimited + udp => udp_config.conf +# (3) limited + tcp => limited_tcp_config.conf +# (4) limited + udp => limited_udp_config.conf +# + class site_openvpn { tag 'leap_service' - # parse hiera config - $ip_address = hiera('ip_address') - $interface = getvar("interface_${ip_address}") - #$gateway_address = hiera('gateway_address') - $openvpn_config = hiera('openvpn') - $openvpn_gateway_address = $openvpn_config['gateway_address'] - $openvpn_tcp_network_prefix = '10.1.0' - $openvpn_tcp_netmask = '255.255.248.0' - $openvpn_tcp_cidr = '21' - $openvpn_udp_network_prefix = '10.2.0' - $openvpn_udp_netmask = '255.255.248.0' - $openvpn_udp_cidr = '21' - $x509_config = hiera('x509') + + $openvpn_config = hiera('openvpn') + $x509_config = hiera('x509') + $openvpn_ports = $openvpn_config['ports'] + + if $::ec2_instance_id { + $openvpn_gateway_address = $::ipaddress + } else { + $openvpn_gateway_address = $openvpn_config['gateway_address'] + if $openvpn_config['second_gateway_address'] { + $openvpn_second_gateway_address = $openvpn_config['second_gateway_address'] + } else { + $openvpn_second_gateway_address = undef + } + } + + $openvpn_allow_unlimited = $openvpn_config['allow_unlimited'] + $openvpn_unlimited_prefix = $openvpn_config['unlimited_prefix'] + $openvpn_unlimited_tcp_network_prefix = '10.41.0' + $openvpn_unlimited_tcp_netmask = '255.255.248.0' + $openvpn_unlimited_tcp_cidr = '21' + $openvpn_unlimited_udp_network_prefix = '10.42.0' + $openvpn_unlimited_udp_netmask = '255.255.248.0' + $openvpn_unlimited_udp_cidr = '21' + + if !$::ec2_instance_id { + $openvpn_allow_limited = $openvpn_config['allow_limited'] + $openvpn_limited_prefix = $openvpn_config['limited_prefix'] + $openvpn_rate_limit = $openvpn_config['rate_limit'] + $openvpn_limited_tcp_network_prefix = '10.43.0' + $openvpn_limited_tcp_netmask = '255.255.248.0' + $openvpn_limited_tcp_cidr = '21' + $openvpn_limited_udp_network_prefix = '10.44.0' + $openvpn_limited_udp_netmask = '255.255.248.0' + $openvpn_limited_udp_cidr = '21' + } # deploy ca + server keys include site_openvpn::keys - # create 2 openvpn config files, one for tcp, one for udp - site_openvpn::server_config { 'tcp_config': - port => '1194', - proto => 'tcp', - local => $openvpn_gateway_address, - server => "${openvpn_tcp_network_prefix}.0 ${openvpn_tcp_netmask}", - push => "\"dhcp-option DNS ${openvpn_tcp_network_prefix}.1\"", - management => '127.0.0.1 1000' + if $openvpn_allow_unlimited and $openvpn_allow_limited { + $unlimited_gateway_address = $openvpn_gateway_address + $limited_gateway_address = $openvpn_second_gateway_address + } elsif $openvpn_allow_unlimited { + $unlimited_gateway_address = $openvpn_gateway_address + $limited_gateway_address = undef + } elsif $openvpn_allow_limited { + $unlimited_gateway_address = undef + $limited_gateway_address = $openvpn_gateway_address } - site_openvpn::server_config { 'udp_config': - port => '1194', - proto => 'udp', - server => "${openvpn_udp_network_prefix}.0 ${openvpn_udp_netmask}", - push => "\"dhcp-option DNS ${openvpn_udp_network_prefix}.1\"", - local => $openvpn_gateway_address, - management => '127.0.0.1 1001' + + if $openvpn_allow_unlimited { + site_openvpn::server_config { 'tcp_config': + port => '1194', + proto => 'tcp', + local => $unlimited_gateway_address, + tls_remote => "\"${openvpn_unlimited_prefix}\"", + server => "${openvpn_unlimited_tcp_network_prefix}.0 ${openvpn_unlimited_tcp_netmask}", + push => "\"dhcp-option DNS ${openvpn_unlimited_tcp_network_prefix}.1\"", + management => '127.0.0.1 1000' + } + site_openvpn::server_config { 'udp_config': + port => '1194', + proto => 'udp', + local => $unlimited_gateway_address, + tls_remote => "\"${openvpn_unlimited_prefix}\"", + server => "${openvpn_unlimited_udp_network_prefix}.0 ${openvpn_unlimited_udp_netmask}", + push => "\"dhcp-option DNS ${openvpn_unlimited_udp_network_prefix}.1\"", + management => '127.0.0.1 1001' + } + } else { + tidy { "/etc/openvpn/tcp_config.conf": } + tidy { "/etc/openvpn/udp_config.conf": } + } + + if $openvpn_allow_limited { + site_openvpn::server_config { 'limited_tcp_config': + port => '1194', + proto => 'tcp', + local => $limited_gateway_address, + tls_remote => "\"${openvpn_limited_prefix}\"", + server => "${openvpn_limited_tcp_network_prefix}.0 ${openvpn_limited_tcp_netmask}", + push => "\"dhcp-option DNS ${openvpn_limited_tcp_network_prefix}.1\"", + management => '127.0.0.1 1002' + } + site_openvpn::server_config { 'limited_udp_config': + port => '1194', + proto => 'udp', + local => $limited_gateway_address, + tls_remote => "\"${openvpn_limited_prefix}\"", + server => "${openvpn_limited_udp_network_prefix}.0 ${openvpn_limited_udp_netmask}", + push => "\"dhcp-option DNS ${openvpn_limited_udp_network_prefix}.1\"", + management => '127.0.0.1 1003' + } + } else { + tidy { "/etc/openvpn/limited_tcp_config.conf": } + tidy { "/etc/openvpn/limited_udp_config.conf": } } - # add second IP on given interface - file { '/usr/local/bin/leap_add_second_ip.sh': - content => "#!/bin/sh -ip addr show dev $interface | grep -q ${openvpn_gateway_address}/24 || ip addr add ${openvpn_gateway_address}/24 dev $interface -/bin/echo 1 > /proc/sys/net/ipv4/ip_forward -", - mode => '0755', + file { + '/usr/local/bin/add_gateway_ips.sh': + content => template('site_openvpn/add_gateway_ips.sh.erb'), + mode => '0755'; } - exec { '/usr/local/bin/leap_add_second_ip.sh': - subscribe => File['/usr/local/bin/leap_add_second_ip.sh'], + exec { '/usr/local/bin/add_gateway_ips.sh': + subscribe => File['/usr/local/bin/add_gateway_ips.sh'], } - cron { 'leap_add_second_ip.sh': - command => "/usr/local/bin/leap_add_second_ip.sh", + exec { 'restart_openvpn': + command => '/etc/init.d/openvpn restart', + refreshonly => true, + subscribe => File['/etc/openvpn'], + require => [ Package['openvpn'], File['/etc/openvpn'] ]; + } + + cron { 'add_gateway_ips.sh': + command => '/usr/local/bin/add_gateway_ips.sh', user => 'root', special => 'reboot', } @@ -63,6 +149,7 @@ ip addr show dev $interface | grep -q ${openvpn_gateway_address}/24 || ip addr a 'openvpn': ensure => installed; } + service { 'openvpn': ensure => running, @@ -74,6 +161,7 @@ ip addr show dev $interface | grep -q ${openvpn_gateway_address}/24 || ip addr a file { '/etc/openvpn': ensure => directory, + notify => Exec['restart_openvpn'], require => Package['openvpn']; } diff --git a/puppet/modules/site_openvpn/manifests/resolver.pp b/puppet/modules/site_openvpn/manifests/resolver.pp index d3963c95..dc31767c 100644 --- a/puppet/modules/site_openvpn/manifests/resolver.pp +++ b/puppet/modules/site_openvpn/manifests/resolver.pp @@ -1,5 +1,53 @@ class site_openvpn::resolver { + if $site_openvpn::openvpn_allow_unlimited { + $ensure_unlimited = 'present' + file { + '/etc/unbound/conf.d/vpn_unlimited_udp_resolver': + content => "interface: ${site_openvpn::openvpn_unlimited_udp_network_prefix}.1\naccess-control: ${site_openvpn::openvpn_unlimited_udp_network_prefix}.0/${site_openvpn::openvpn_unlimited_udp_cidr} allow\n", + owner => root, + group => root, + mode => '0644', + require => Service['openvpn'], + notify => Service['unbound']; + '/etc/unbound/conf.d/vpn_unlimited_tcp_resolver': + content => "interface: ${site_openvpn::openvpn_unlimited_tcp_network_prefix}.1\naccess-control: ${site_openvpn::openvpn_unlimited_tcp_network_prefix}.0/${site_openvpn::openvpn_unlimited_tcp_cidr} allow\n", + owner => root, + group => root, + mode => '0644', + require => Service['openvpn'], + notify => Service['unbound']; + } + } else { + $ensure_unlimited = 'absent' + tidy { '/etc/unbound/conf.d/vpn_unlimited_udp_resolver': } + tidy { '/etc/unbound/conf.d/vpn_unlimited_tcp_resolver': } + } + + if $site_openvpn::openvpn_allow_limited { + $ensure_limited = 'present' + file { + '/etc/unbound/conf.d/vpn_limited_udp_resolver': + content => "interface: ${site_openvpn::openvpn_limited_udp_network_prefix}.1\naccess-control: ${site_openvpn::openvpn_limited_udp_network_prefix}.0/${site_openvpn::openvpn_limited_udp_cidr} allow\n", + owner => root, + group => root, + mode => '0644', + require => Service['openvpn'], + notify => Service['unbound']; + '/etc/unbound/conf.d/vpn_limited_tcp_resolver': + content => "interface: ${site_openvpn::openvpn_limited_tcp_network_prefix}.1\naccess-control: ${site_openvpn::openvpn_limited_tcp_network_prefix}.0/${site_openvpn::openvpn_limited_tcp_cidr} allow\n", + owner => root, + group => root, + mode => '0644', + require => Service['openvpn'], + notify => Service['unbound']; + } + } else { + $ensure_limited = 'absent' + tidy { '/etc/unbound/conf.d/vpn_limited_udp_resolver': } + tidy { '/etc/unbound/conf.d/vpn_limited_tcp_resolver': } + } + # this is an unfortunate way to get around the fact that the version of # unbound we are working with does not accept a wildcard include directive # (/etc/unbound/conf.d/*), when it does, these line definitions should @@ -7,30 +55,30 @@ class site_openvpn::resolver { # include: /etc/unbound/conf.d/* line { - 'add_tcp_resolver': - ensure => present, - file => '/etc/unbound/unbound.conf', - line => 'server: include: /etc/unbound/conf.d/vpn_tcp_resolver', - notify => Service['unbound']; - - 'add_udp_resolver': - ensure => present, - file => '/etc/unbound/unbound.conf', - line => 'server: include: /etc/unbound/conf.d/vpn_udp_resolver', - notify => Service['unbound']; + 'add_unlimited_tcp_resolver': + ensure => $ensure_unlimited, + file => '/etc/unbound/unbound.conf', + line => 'server: include: /etc/unbound/conf.d/vpn_unlimited_tcp_resolver', + notify => Service['unbound'], + require => Package['unbound']; + 'add_unlimited_udp_resolver': + ensure => $ensure_unlimited, + file => '/etc/unbound/unbound.conf', + line => 'server: include: /etc/unbound/conf.d/vpn_unlimited_udp_resolver', + notify => Service['unbound'], + require => Package['unbound']; + 'add_limited_tcp_resolver': + ensure => $ensure_limited, + file => '/etc/unbound/unbound.conf', + line => 'server: include: /etc/unbound/conf.d/vpn_limited_tcp_resolver', + notify => Service['unbound'], + require => Package['unbound']; + 'add_limited_udp_resolver': + ensure => $ensure_limited, + file => '/etc/unbound/unbound.conf', + line => 'server: include: /etc/unbound/conf.d/vpn_limited_udp_resolver', + notify => Service['unbound'], + require => Package['unbound'] } - file { - '/etc/unbound/conf.d/vpn_udp_resolver': - content => "interface: ${site_openvpn::openvpn_udp_network_prefix}.1\naccess-control: ${site_openvpn::openvpn_udp_network_prefix}.0/${site_openvpn::openvpn_udp_cidr} allow\n", - owner => root, group => root, mode => '0644', - require => Service['openvpn'], - notify => Service['unbound']; - - '/etc/unbound/conf.d/vpn_tcp_resolver': - content => "interface: ${site_openvpn::openvpn_tcp_network_prefix}.1\naccess-control: ${site_openvpn::openvpn_tcp_network_prefix}.0/${site_openvpn::openvpn_tcp_cidr} allow\n", - owner => root, group => root, mode => '0644', - require => Service['openvpn'], - notify => Service['unbound']; - } } diff --git a/puppet/modules/site_openvpn/manifests/server_config.pp b/puppet/modules/site_openvpn/manifests/server_config.pp index de273b46..6106cfbb 100644 --- a/puppet/modules/site_openvpn/manifests/server_config.pp +++ b/puppet/modules/site_openvpn/manifests/server_config.pp @@ -52,18 +52,29 @@ # note: the default is BF-CBC (blowfish) # -define site_openvpn::server_config ($port, $proto, $local, $server, $push, $management ) { +define site_openvpn::server_config( + $port, $proto, $local, $server, $push, + $management, $tls_remote = undef) { $openvpn_configname = $name concat { - "/etc/openvpn/$openvpn_configname.conf": + "/etc/openvpn/${openvpn_configname}.conf": owner => root, group => root, mode => 644, warn => true, require => File['/etc/openvpn'], - notify => Service['openvpn']; + notify => Exec['restart_openvpn']; + } + + if $tls_remote != undef { + openvpn::option { + "tls-remote $openvpn_configname": + key => 'tls-remote', + value => $tls_remote, + server => $openvpn_configname; + } } openvpn::option { diff --git a/puppet/modules/site_openvpn/templates/add_gateway_ips.sh.erb b/puppet/modules/site_openvpn/templates/add_gateway_ips.sh.erb new file mode 100644 index 00000000..05f3d16b --- /dev/null +++ b/puppet/modules/site_openvpn/templates/add_gateway_ips.sh.erb @@ -0,0 +1,11 @@ +#!/bin/sh + +ip addr show dev <%= scope.lookupvar('site_config::params::interface') %> | grep -q <%= @openvpn_gateway_address %>/24 || + ip addr add <%= @openvpn_gateway_address %>/24 dev <%= scope.lookupvar('site_config::params::interface') %> + +<% if @openvpn_second_gateway_address %> +ip addr show dev <%= scope.lookupvar('site_config::params::interface') %> | grep -q <%= @openvpn_second_gateway_address %>/24 || + ip addr add <%= @openvpn_second_gateway_address %>/24 dev <%= scope.lookupvar('site_config::params::interface') %> +<% end %> + +/bin/echo 1 > /proc/sys/net/ipv4/ip_forward |