diff options
Diffstat (limited to 'manifests/firewall/rule.pp')
| -rw-r--r-- | manifests/firewall/rule.pp | 60 |
1 files changed, 53 insertions, 7 deletions
diff --git a/manifests/firewall/rule.pp b/manifests/firewall/rule.pp index c63162b..688144e 100644 --- a/manifests/firewall/rule.pp +++ b/manifests/firewall/rule.pp @@ -45,7 +45,7 @@ # # [*source*] # (optional) The source IP address associated to the rule. -# Defaults to '0.0.0.0/0' +# Defaults to undef # # [*iniface*] # (optional) The network interface associated to the rule. @@ -70,29 +70,75 @@ define tripleo::firewall::rule ( $proto = 'tcp', $action = 'accept', $state = ['NEW'], - $source = '0.0.0.0/0', + $source = undef, $iniface = undef, $chain = 'INPUT', $destination = undef, $extras = {}, ) { + if $port == 'all' { + warning("All ${proto} traffic will be open on this host.") + # undef so the IPtables rule won't have any port specified. + $port_real = undef + } else { + $port_real = $port + } + $basic = { - 'port' => $port, + 'port' => $port_real, 'dport' => $dport, 'sport' => $sport, 'proto' => $proto, 'action' => $action, - 'state' => $state, 'source' => $source, 'iniface' => $iniface, 'chain' => $chain, 'destination' => $destination, } + if $proto == 'icmp' { + $ipv6 = { + 'provider' => 'ip6tables', + 'proto' => 'ipv6-icmp', + } + } else { + $ipv6 = { + 'provider' => 'ip6tables', + } + } + if $proto != 'gre' { + $state_rule = { + 'state' => $state + } + } else { + $state_rule = {} + } + - $rule = merge($basic, $extras) - validate_hash($rule) + $ipv4_rule = merge($basic, $state_rule, $extras) + $ipv6_rule = merge($basic, $state_rule, $ipv6, $extras) + validate_hash($ipv4_rule) + validate_hash($ipv6_rule) - create_resources('firewall', { "${title}" => $rule }) + # This conditional will ensure that TCP and UDP firewall rules have + # a port specified in the configuration when using INPUT or OUTPUT chains. + # If not, the Puppet catalog will fail. + # If we don't do this sanity check, a user could create some TCP/UDP + # rules without port, and the result would be an iptables rule that allow any + # traffic on the host. + if ($proto in ['tcp', 'udp']) and (! ($port or $dport or $sport) and ($chain != 'FORWARD')) { + fail("${title} firewall rule cannot be created. TCP or UDP rules for INPUT or OUTPUT need port or sport or dport.") + } + if $source or $destination { + if ('.' in $destination or '.' in $source) { + create_resources('firewall', { "${title} ipv4" => $ipv4_rule }) + } + if (':' in $destination or ':' in $source) { + create_resources('firewall', { "${title} ipv6" => $ipv6_rule }) + } + } else { + create_resources('firewall', { "${title} ipv4" => $ipv4_rule }) + create_resources('firewall', { "${title} ipv6" => $ipv6_rule }) + } } |