From 4e704ba37596ea3516d922bf2eca9c10ff6b2d94 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ermal=20Lu=E7i?= Date: Sat, 25 Apr 2009 19:05:46 +0000 Subject: Add igmpproxy as a package for the 1.2.x branch. --- config/igmpproxy/filter.tmp | 3312 ++++++++++++++++++++++++++++++ config/igmpproxy/firewall_rules_edit.tmp | 879 ++++++++ config/igmpproxy/igmpproxy.inc | 83 + config/igmpproxy/igmpproxy.xml | 149 ++ 4 files changed, 4423 insertions(+) create mode 100644 config/igmpproxy/filter.tmp create mode 100755 config/igmpproxy/firewall_rules_edit.tmp create mode 100644 config/igmpproxy/igmpproxy.inc create mode 100644 config/igmpproxy/igmpproxy.xml diff --git a/config/igmpproxy/filter.tmp b/config/igmpproxy/filter.tmp new file mode 100644 index 00000000..fa79ac54 --- /dev/null +++ b/config/igmpproxy/filter.tmp @@ -0,0 +1,3312 @@ +. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + +*/ + +/* include all configuration functions */ +require_once("functions.inc"); +require_once("pkg-utils.inc"); +require_once("notices.inc"); + +if($config['system']['shapertype'] <> "m0n0") + require_once ("shaper.inc"); + +/* holds the items that will be executed *AFTER* the filter is fully loaded */ +$after_filter_configure_run = array(); + +function filter_pflog_start() { + global $config, $g; + + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "filter_pflog_start() being called $mt\n"; + } + + mute_kernel_msgs(); + + $pid = `ps awwwux | grep -v "grep" | grep "tcpdump -v -l -n -e -ttt -i pflog0" | awk '{ print $2 }'`; + if(!$pid) + mwexec_bg("/usr/sbin/tcpdump -v -l -n -e -ttt -i pflog0 | logger -t pf -p local0.info"); + + unmute_kernel_msgs(); + +} + +/* reload filter async */ +function filter_configure() { + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "filter_configure() being called $mt\n"; + } + global $g; + + touch($g['tmp_path'] . "/filter_dirty"); +} + +/* reload filter sync */ +function filter_configure_sync() { + global $config, $g, $after_filter_configure_run; + filter_pflog_start(); + update_filter_reload_status("Initializing"); + /* invalidate interface cache */ + get_interface_arr(true); + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "filter_configure_sync() being called $mt\n"; + } + + /* load ipfw / dummynet early on if required */ + if($config['system']['dummynetshaper']) { + $status = intval(`kldstat | grep ipfw | wc -l | awk '{ print $1 }'`); + if($status == "0") { + mwexec("/sbin/kldload ipfw"); + mwexec("/sbin/kldload dummynet"); + } + } else { + /* check to see if any rules reference a schedule + * and if so load ipfw for later usage. + */ + foreach($config['filter']['rule'] as $rule) { + if($rule['sched']) + $time_based_rules = true; + } + if($time_based_rules == true) { + $status = intval(`kldstat | grep ipfw | wc -l | awk '{ print $1 }'`); + if($status == "0") { + mute_kernel_msgs(); + mwexec("/sbin/kldload ipfw"); + unmute_kernel_msgs(); + } + exec("/sbin/ipfw delete set 9"); + exec("/sbin/ipfw delete 2"); + exec("/sbin/ipfw delete 3"); + } + } + + $lan_if = $config['interfaces']['lan']['if']; + $wan_if = get_real_wan_interface(); + + /* generate aliases */ + if($g['booting'] == true) echo "."; + update_filter_reload_status("Creating aliases"); + $aliases = filter_generate_aliases(); + /* generate nat rules */ + if($g['booting'] == true) echo "."; + update_filter_reload_status("Generating NAT rules"); + $natrules = filter_nat_rules_generate(); + /* generate pfctl rules */ + if($g['booting'] == true) echo "."; + update_filter_reload_status("Generating filter rules"); + $pfrules = filter_rules_generate(); + + if (isset($config['shaper']['enable']) and $config['system']['shapertype'] <> "m0n0") { + /* generate altq interface setup parms */ + if($g['booting'] == true) echo "."; + update_filter_reload_status("Generating ALTQ interfaces"); + $altq_ints = filter_setup_altq_interfaces(); + /* generate altq queues */ + if($g['booting'] == true) echo "."; + update_filter_reload_status("Generating ALTQ queues"); + $altq_queues = filter_generate_altq_queues($altq_ints); + /* generate altq rules */ + if($g['booting'] == true) echo "."; + /* Setup a default rule that tags ALL packets as unshaped + * we'll match only unshaped packets in the shaper code later + * this allows the shaper to be first match + */ + $pf_altq_rules = "block in all tag unshaped label \"SHAPER: first match rule\"\n"; + update_filter_reload_status("Generating ALTQ rules"); + $pf_altq_rules .= filter_generate_pf_altq_rules(); + } + + update_filter_reload_status("Loading filter rules"); + + /* enable pf if we need to, otherwise disable */ + if (!isset ($config['system']['disablefilter'])) { + mwexec("/sbin/pfctl -e"); + } else { + mwexec("/sbin/pfctl -d"); + unlink_if_exists("{$g['tmp_path']}/filter_loading"); + update_filter_reload_status("Filter is disabled. Not loading rules."); + return; + } + + $fd = fopen("{$g['tmp_path']}/rules.debug", "w"); + $rules = $aliases . " \n"; + + update_filter_reload_status("Setting up logging information"); + + $rules .= setup_logging_interfaces(); + + if ($config['system']['optimization'] <> "") + $rules .= "set optimization {$config['system']['optimization']}\n"; + else + $rules .= "set optimization normal\n"; + + if ($config['system']['maximumstates'] <> "" && is_numeric($config['system']['maximumstates'])) { + /* User defined maximum states in Advanced menu. */ + $rules .= "set limit states {$config['system']['maximumstates']}\n"; + } + $rules .= "\n"; + + update_filter_reload_status("Setting up SCRUB information"); + /* get our wan interface? */ + $wanif = get_real_wan_interface(); + + /* disable scrub option */ + if(!isset($config['system']['disablescrub'])) { + /* set up MSS clamping */ + if ($config['interfaces']['wan']['mtu'] <> "" and is_numeric($config['interfaces']['wan']['mtu'])) + $mssclamp = "max-mss " . (intval($config['interfaces']['wan']['mtu'] - 40)); + else + if ($config['interfaces']['wan']['ipaddr'] == "pppoe") + $mssclamp = "max-mss 1452"; + else + $mssclamp = ""; + + /* configure no-df for linux nfs and others */ + if ($config['system']['scrubnodf']) + $scrubnodf = "no-df random-id"; + else + $scrubnodf = "random-id"; + $rules .= "scrub all {$scrubnodf} {$mssclamp} fragment reassemble\n"; // reassemble all directions + } else if ($config['interfaces']['wan']['mtu'] <> "" and is_numeric($config['interfaces']['wan']['mtu'])) { + $rules .= "scrub {$mssclamp}\n"; // reassemble all directions + } + + if($config['system']['shapertype'] <> "m0n0") { + $rules.= "{$altq_ints}\n"; + $rules.= "{$altq_queues}\n"; + } + $rules.= "{$natrules}\n"; + if($config['system']['shapertype'] <> "m0n0") + $rules.= "{$pf_altq_rules}\n"; + $rules.= "{$pfrules}\n"; + fwrite($fd, $rules); + fclose($fd); + + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "pfctl being called at $mt\n"; + } + $rules_loading = mwexec("/sbin/pfctl -o -f {$g['tmp_path']}/rules.debug"); + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "pfctl done at $mt\n"; + } + + /* check for a error while loading the rules file. if an error has occured + then output the contents of the error to the caller */ + if($rules_loading <> 0) { + $rules_error = exec_command("/sbin/pfctl -f {$g['tmp_path']}/rules.debug"); + $line_error = split("\:", $rules_error); + $line_number = $line_error[1]; + $rules_file = `/bin/cat {$g['tmp_path']}/rules.debug`; + $line_split = split("\n", $rules_file); + if(is_array($line_split)) + $line_error = "The line in question reads [{$line_number}]: {$line_split[$line_number-1]}"; + if($line_error and $line_number) { + file_notice("filter_load", "There were error(s) loading the rules: {$rules_error} {$line_error}", "Filter Reload", ""); + log_error("There were error(s) loading the rules: {$rules_error} - {$line_error}"); + update_filter_reload_status("There were error(s) loading the rules: {$rules_error} - {$line_error}"); + return; + } + } + + unlink_if_exists("/usr/local/pkg/pf/carp_sync_client.php"); + + /* run items scheduled for after filter configure run */ + foreach($after_filter_configure_run as $afcr) { + $fda = fopen("/tmp/commands.txt", "w"); + fwrite($fda, $afcr . "\n"); + fclose($fda); + } + if(file_exists("/tmp/commands.txt")) { + mwexec("sh /tmp/commands.txt &"); + unlink("/tmp/commands.txt"); + } + + update_filter_reload_status("Running plugins"); + + /* process packager manager custom rules */ + $files = return_dir_as_array("/usr/local/pkg/pf/"); + if($files <> "") { + foreach ($files as $file) { + if($file) { + $text = file_get_contents("/usr/local/pkg/pf/" . $file); + if($text) { + if(stristr($file, ".sh") == true) { + mwexec("/usr/local/pkg/pf/" . $file . " start"); + } else { + if(!stristr($file,"CVS")) { + if($g['booting'] == true) + echo "\t{$file}... "; + require_once("/usr/local/pkg/pf/" . $file); + } + } + } + } + } + } + update_filter_reload_status("Plugins completed."); + + system_start_ftp_helpers(); + + if($config['system']['shapertype'] == "m0n0") { + require_once ("/etc/inc/m0n0/shaper.inc"); + shaper_configure(); + } + + /* if time based rules are enabled then swap in the set */ + if($time_based_rules == true) { + tdr_install_cron(true); + tdr_install_set(); + } else { + tdr_install_cron(false); + } + + /* + we need a way to let a user run a shell cmd after each + filter_configure() call. run this xml command after + each change. + */ + if($config['system']['afterfilterchangeshellcmd'] <> "") + mwexec($config['system']['afterfilterchangeshellcmd']); + + /* sync carp entries to other firewalls */ + update_filter_reload_status("Syncing CARP data"); + carp_sync_client(); + + system_routing_configure(); + + update_filter_reload_status("Done"); + + return 0; +} + +function filter_generate_aliases() { + global $config, $g; + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "filter_generate_aliases() being called $mt\n"; + } + $aliases = ""; + + $i = 0; + + $lanip = find_interface_ip($config['interfaces']['lan']['if']); + $wanip = find_interface_ip(get_real_wan_interface()); + + $lan_aliases = " " . link_ip_to_carp_interface($lanip); + $wan_aliases = " " . link_ip_to_carp_interface($wanip); + + if(link_int_to_bridge_interface("lan")) + $lan_aliases .= " " . link_int_to_bridge_interface("lan"); + if(link_int_to_bridge_interface("wan")) + $wan_aliases .= " " . link_int_to_bridge_interface("wan"); + + $aliases .= "# System Aliases \n"; + $aliases .= "loopback = \"{ lo0 }\"\n"; + $aliases .= "lan = \"{ {$config['interfaces']['lan']['if']}{$lan_aliases} }\"\n"; + + if($config['interfaces']['wan']['ipaddr'] == "pppoe" or $config['interfaces']['wan']['ipaddr'] == "pptp") { + $aliases .= "ng0 = \"{ " . $config['interfaces']['wan']['if'] . " " . get_real_wan_interface() . " }\" \n"; + $aliases .= "wan = \"{ " . $config['interfaces']['wan']['if'] . "{$wan_aliases} ng0 }\"\n"; + } else { + $aliases .= "wan = \"{ " . get_real_wan_interface() . "{$wan_aliases} }\"\n"; + } + + $aliases .= "enc0 = \"{ enc0 }\"\n"; + + /* used to count netgraph interfaces */ + $counter = 0; + + /* ng ordering is VERY important here. do not alter order */ + if($config['pptpd']['mode'] == "server") { + /* build pptp alias */ + $tmp = "pptp = \"{ "; + $starting_pptp = 1; + if($config['interfaces']['wan']['ipaddr'] == "pppoe") + $starting_pptp = 1; + for($x=$starting_pptp; $x<$g["n_pptp_units"]+$starting_pptp; $x++) + $tmp .= "ng{$x} "; + $counter = $x; + $tmp .= "}\" \n"; + if($counter > 0) + $aliases .= $tmp; + } + if($config['pppoe']['mode'] == "server") { + /* build pppoe alias */ + $tmp = "pppoe = \"{ "; + $starting_pppoe = 1; + if($config['interfaces']['wan']['ipaddr'] == "pppoe") + $starting_pppoe = 1; + for($x=0; $x<$g["n_pppoe_units"]+$starting_pppoe; $x++) { + $tmp .= "ng{$counter} "; + $counter++; + } + $tmp .= "}\" \n"; + if($x > 0) + $aliases .= $tmp; + } + + $ifdescrs = array(); + for ($j = 1; isset($config['interfaces']['opt' . $j]); $j++) { + $ifdescrs['opt' . $j] = "opt" . $j; + } + $bridgetracker = 0; + foreach ($ifdescrs as $ifdescr => $ifname) { + /* do not process tun interfaces */ + /* do process tun interfaces for openvpn compatibility */ + /* if(stristr(filter_opt_interface_to_real($ifname), "tun") == true) continue; */ + $aliases .= convert_friendly_interface_to_friendly_descr($ifname) . " = \"{ " . filter_opt_interface_to_real($ifname); + if(link_int_to_bridge_interface($ifname)) + $aliases .= " " . link_int_to_bridge_interface($ifname); + $optip = find_interface_ip($config['interfaces'][$ifname]['if']); + if($optip) { + $opt_carp_ints = link_ip_to_carp_interface($optip); + if($opt_carp_ints) + $aliases .= $opt_carp_ints; + } + $aliases .= " }\"\n"; + } + $aliases .= "# User Aliases \n"; + /* Setup pf groups */ + if (isset($config['aliases']['alias'])) { + foreach ($config['aliases']['alias'] as $alias) { + $extraalias = ""; + $ip = find_interface_ip($alias['address']); + $extraalias = " " . link_ip_to_carp_interface($ip); + $aliases .= "{$alias['name']} = \"{ {$alias['address']}{$extralias} }\"\n"; + } + } + + return $aliases; +} + +function get_vpns_list() { + global $config; + /* build list of vpns */ + $vpns = ""; + $isfirst = true; + /* ipsec */ + if ($config['ipsec']['tunnel']) { + foreach ($config['ipsec']['tunnel'] as $tunnel) { + if ($isfirst == false) + $vpns .= " "; + $vpns .= $tunnel['remote-subnet']; + $isfirst = false; + } + } + /* openvpn */ + foreach (array('client', 'server') as $type) { + $conf =& $config['installedpackages']["openvpn$type"]['config']; + if (!is_array($conf)) continue; + foreach ($conf as $tunnel) { + if ($isfirst == false) + $vpns .= " "; + $vpns .= $tunnel['remote_network']; + $isfirst = false; + } + } + /* pppoe */ + if ($config['pppoe']['remoteip']) { + if ($isfirst == false) + $vpns .= " "; + $vpns .= $config['pppoe']['remoteip'] ."/". $config['pppoe']['pppoe_subnet']; + $isfirst = false; + } + $vpns .= " "; + return $vpns; +} + +function generate_optcfg_array(& $optcfg) { + global $config; + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "generate_optcfg_array() being called $mt\n"; + } + + for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) { + $oc = $config['interfaces']['opt' . $i]; + + if (isset($oc['enable']) && $oc['if']) { + $oic = array(); + $oic['if'] = $oc['if']; + + if ($oc['bridge']) { + if (!strstr($oc['bridge'], "opt") || + isset($config['interfaces'][$oc['bridge']]['enable'])) { + if (is_ipaddr($config['interfaces'][$oc['bridge']]['ipaddr'])) { + $oic['ip'] = $config['interfaces'][$oc['bridge']]['ipaddr']; + $oic['sn'] = $config['interfaces'][$oc['bridge']]['subnet']; + $oic['sa'] = gen_subnet($oic['ip'], $oic['sn']); + } + } + $oic['bridge'] = 1; + } else { + $oic['ip'] = $oc['ipaddr']; + $oic['sn'] = $oc['subnet']; + $oic['sa'] = gen_subnet($oic['ip'], $oic['sn']); + } + + $optcfg['opt' . $i] = $oic; + } + } +} + +function filter_flush_nat_table() { + global $config, $g; + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "filter_flush_nat_table() being called $mt\n"; + } + return mwexec("/sbin/pfctl -F nat"); +} + +function filter_flush_state_table() { + global $config, $g; + + return mwexec("/sbin/pfctl -F state"); +} + +/* Generate a 'nat on' or 'no nat on' rule for given interface */ +function filter_nat_rules_generate_if($if, $src = "any", $srcport = "", $dst = "any", $dstport = "", $natip = "", $natport = "", $nonat = false, $staticnatport = false) { + global $config; + + /* XXX: billm - any idea if this code is needed? */ + if($src == "/32" || $src{0} == "/") + return; + + /* Use interface name if IP isn't specified */ + if ($natip != "") + $tgt = "{$natip}/32"; + else + $tgt = "($if)"; + + /* Add the hard set source port (useful for ISAKMP) */ + if ($natport != "") + $tgt .= " port {$natport}"; + + /* sometimes this gets called with "" instead of a value */ + if ($src == "") + $src = "any"; + + /* Match on this source port */ + if ($srcport != "") + $src .= " port {$srcport}"; + + /* sometimes this gets called with "" instead of a value */ + if ($dst == "") + $dst = "any"; + + /* Match on this dest port */ + if ($dstport != "") + $dst .= " port {$dstport}"; + + /* Allow for negating NAT entries */ + if ($nonat) { + $nat = "no nat"; + $target = ""; + } else { + $nat = "nat"; + $target = "-> {$tgt}"; + } + + /* outgoing static-port option, hamachi, Grandstream, VOIP, etc */ + if($staticnatport) + $staticnatport_txt = " static-port"; + else + $staticnatport_txt = ""; + + $if_friendly = convert_real_interface_to_friendly_descr($if); + + /* Put all the pieces together */ + if($if_friendly) + $natrule = "{$nat} on \${$if_friendly} from {$src} to {$dst} {$target}{$staticnatport_txt}\n"; + + return $natrule; +} + +function is_one_to_one_or_server_nat_rule($iptocheck) { + global $config, $target; + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "is_one_to_one_or_server_nat_rule() being called $mt\n"; + } + + if($config['nat']['onetoone'] <> "") + foreach($config['nat']['onetoone'] as $onetoone) { + if(ip_in_subnet($iptocheck,$onetoone['internal']."/".$onetoone['subnet']) == true) + return true; + if($onetoone['internal'] == $target) + return true; + } + + if($config['nat']['servernat'] <> "") + foreach($config['nat']['servernat'] as $onetoone) { + $int = explode("/", $onetoone['ipaddr']); + if(ip_in_subnet($iptocheck,$onetoone['ipaddr']."/".$onetoone['subnet']) == true) + return true; + if($onetoone['ipaddr'] == $target) + return true; + } + + if($config['nat']['rule'] <> "") + foreach($config['nat']['rule'] as $onetoone) { + $int = explode("/", $onetoone['target']); + if(ip_in_subnet($iptocheck,$onetoone['target']."/".$onetoone['subnet']) == true) + return true; + if($onetoone['target'] == $target) + return true; + } + + return FALSE; +} + +function filter_nat_rules_generate() { + global $config, $g, $after_filter_configure_run; + + $wancfg = $config['interfaces']['wan']; + $lancfg = $config['interfaces']['lan']; + + $pptpdcfg = $config['pptpd']; + $pppoecfg = $config['pppoe']; + $wanif = get_real_wan_interface(); + + $lanif = $config['interfaces']['lan']['if']; + $lanip = $config['interfaces']['lan']['ipaddr']; + + $lansa = gen_subnet($lancfg['ipaddr'], $lancfg['subnet']); + + $natrules .= "nat-anchor \"pftpx/*\"\n"; + + $natrules .= "nat-anchor \"natearly/*\"\n"; + $natrules .= "nat-anchor \"natrules/*\"\n"; + + $natrules .= "# FTP proxy\n"; + $natrules .= "rdr-anchor \"pftpx/*\"\n"; + + update_filter_reload_status("Creating 1:1 rules..."); + + /* any 1:1 mappings? */ + if (is_array($config['nat']['onetoone'])) { + foreach ($config['nat']['onetoone'] as $natent) { + if (!is_numeric($natent['subnet'])) + $sn = 32; + else + $sn = $natent['subnet']; + + if (!$natent['interface'] || ($natent['interface'] == "wan")) + $natif = $wanif; + else + $natif = $config['interfaces'][$natent['interface']]['if']; + + if($natif) + $natrules .= "binat on $natif from {$natent['internal']}/{$sn} to any -> {$natent['external']}/{$sn}\n"; + } + } + + /* any 1:1 mappings? */ + if (is_array($config['nat']['onetoone'])) { + $natrules .= "\n"; + foreach ($config['nat']['onetoone'] as $natent) { + if (!is_numeric($natent['subnet'])) + $sn = 32; + else + $sn = $natent['subnet']; + + if (!$natent['interface'] || ($natent['interface'] == "wan")) + $natif = $wanif; + else + $natif = $config['interfaces'][$natent['interface']]['if']; + + if($natent['interface']) + $natrules .= "binat on $natif from {$natent['internal']}/{$sn} to any -> {$natent['external']}/{$sn}\n"; + } + } + + $natrules .= "\n# Outbound NAT rules\n"; + + /* outbound rules - advanced or standard */ + if (isset($config['nat']['advancedoutbound']['enable'])) { + /* advanced outbound rules */ + if (is_array($config['nat']['advancedoutbound']['rule'])) { + foreach ($config['nat']['advancedoutbound']['rule'] as $obent) { + + update_filter_reload_status("Creating advanced outbound rule {$obent['descr']}"); + + $src = $obent['source']['network']; + if (isset($obent['destination']['not']) && !isset($obent['destination']['any'])) + $dst = "!" . $obent['destination']['address']; + else + $dst = $obent['destination']['address']; + + + if (!$obent['interface'] || ($obent['interface'] == "wan")) + $natif = $wanif; + else + $natif = $config['interfaces'][$obent['interface']]['if']; + + $natrules .= filter_nat_rules_generate_if($natif, + $src, + $obent['sourceport'], + $dst, + $obent['dstport'], + $obent['target'], + $obent['natport'], + isset($obent['nonat']), + isset($obent['staticnatport']) + ); + } + } + } else { + /* standard outbound rules (one for each interface) */ + update_filter_reload_status("Creating outbound NAT rules"); + + $natrules .= filter_nat_rules_generate_if($wanif, + "{$lansa}/{$lancfg['subnet']}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$lansa}/{$lancfg['subnet']}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$lansa}/{$lancfg['subnet']}"); + + $optints = array(); + generate_optcfg_array($optints); + + /* generate lan nat mappings for opts with a gateway opts */ + foreach($optints as $oc) { + $opt_interface = $oc['if']; + if (interface_has_gateway("$opt_interface")) { + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$lansa}/{$lancfg['subnet']}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$lansa}/{$lancfg['subnet']}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$lansa}/{$lancfg['subnet']}"); + } + } + + /* optional interfaces */ + for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) { + update_filter_reload_status("Creating outbound rules (opt{$i})"); + $optcfg = $config['interfaces']['opt' . $i]; + + if ((isset ($optcfg['enable'])) && (!$optcfg['bridge']) && (!interface_has_gateway("opt{$i}"))) { + $optsa = gen_subnet($optcfg['ipaddr'], $optcfg['subnet']); + + /* create outbound nat entries for primary wan */ + $natrules .= filter_nat_rules_generate_if($wanif, + "{$optsa}/{$optcfg['subnet']}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$optsa}/{$optcfg['subnet']}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$optsa}/{$optcfg['subnet']}", null, "", null, null, null, isset($optcfg['nonat'])); + + /* create outbound nat entries for all opt wans */ + foreach($optints as $oc) { + $opt_interface = $oc['if']; + if (interface_has_gateway("$opt_interface")) { + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$optsa}/{$optcfg['subnet']}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$optsa}/{$optcfg['subnet']}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$optsa}/{$optcfg['subnet']}", null, "", null, null, null, isset($optcfg['nonat'])); + } + } + } + } + + /* PPTP subnet */ + if ($pptpdcfg['mode'] == "server") { + $pptp_subnet = $g['pptp_subnet']; + if($config['pptp']['pptp_subnet'] <> "") + $pptp_subnet = $config['pptp']['pptp_subnet']; + $natrules .= filter_nat_rules_generate_if($wanif, + "{$pptpdcfg['remoteip']}/{$pptp_subnet}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$pptpdcfg['remoteip']}/{$pptp_subnet}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$pptpdcfg['remoteip']}/{$pptp_subnet}"); + + /* generate nat mappings for opts with a gateway opts */ + foreach($optints as $oc) { + $opt_interface = $oc['if']; + if ((is_private_ip($pptpdcfg['remoteip'])) && (interface_has_gateway($opt_interface))) { + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$pptpdcfg['remoteip']}/{$pptp_subnet}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$pptpdcfg['remoteip']}/{$pptp_subnet}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$pptpdcfg['remoteip']}/{$pptp_subnet}"); + } + } + } + + /* PPPoE subnet */ + if ($pppoecfg['mode'] == "server") { + $pppoe_subnet = $g['pppoe_subnet']; + if($config['pppoe']['pppoe_subnet'] <> "") + $pppoe_subnet = $config['pppoe']['pppoe_subnet']; + $natrules .= filter_nat_rules_generate_if($wanif, + "{$pppoecfg['remoteip']}/{$pppoe_subnet}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$pppoecfg['remoteip']}/{$pppoe_subnet}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$pppoecfg['remoteip']}/{$pppoe_subnet}"); + + /* generate nat mappings for opts with a gateway opts */ + foreach($optints as $oc) { + $opt_interface = $oc['if']; + if ((is_private_ip($pppoecfg['remoteip'])) && (interface_has_gateway($opt_interface))) { + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$pppoecfg['remoteip']}/{$pppoe_subnet}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$pppoecfg['remoteip']}/{$pppoe_subnet}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$pppoecfg['remoteip']}/{$pppoe_subnet}"); + } + } + } + + /* static routes */ + if (is_array($config['staticroutes']['route'])) { + foreach ($config['staticroutes']['route'] as $route) { + $netip = explode("/", $route['network']); + if ((! interface_has_gateway($route['interface'])) && (is_private_ip($netip[0]))) { + $natrules .= filter_nat_rules_generate_if($wanif, + "{$route['network']}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$route['network']}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($wanif, + "{$route['network']}", "", null); + } + /* generate nat mapping for static routes on opts */ + foreach($optints as $oc) { + $opt_interface = $oc['if']; + if ((! interface_has_gateway($route['interface'])) && (is_private_ip($netip[0])) && (interface_has_gateway($opt_interface))) { + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$route['network']}", 500, "", 500, null, 500, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$route['network']}", 5060, "", 5060, null, 5060, false); + $natrules .= filter_nat_rules_generate_if($opt_interface, + "{$route['network']}", "", null); + } + } + + } + } + + } + + $natrules .= "\n#SSH Lockout Table\n"; + $natrules .= "table persist\n\n"; + + /* is SPAMD insalled? */ + if (is_package_installed("spamd") == 1) { + $natrules .= "\n# spam table \n"; + + $natrules .= "table persist\n"; + $natrules .= "table persist\n"; + $natrules .= "table persist\n"; + if(file_exists("/var/db/whitelist.txt")) + $natrules .= "table persist file \"/var/db/whitelist.txt\"\n"; + $natrules .= "rdr pass on {$wanif} proto tcp from to port smtp -> 127.0.0.1 port spamd\n"; + $natrules .= "rdr pass on {$wanif} proto tcp from to port smtp -> 127.0.0.1 port spamd\n"; + $natrules .= "rdr pass on {$wanif} proto tcp from ! to port smtp -> 127.0.0.1 port spamd\n"; + if($config['installedpackages']['spamdsettings']['config']) + foreach($config['installedpackages']['spamdsettings']['config'] as $ss) + $nextmta = $ss['nextmta']; + if($nextmta <> "") { + $natrules .= "rdr pass on {$wanif} proto tcp from to port smtp -> {$nextmta} port smtp\n"; + } + } + + /* load balancer anchor */ + $natrules .= "\n# Load balancing anchor - slbd updates\n"; + $natrules .= "rdr-anchor \"slb\"\n"; + + update_filter_reload_status("Setting up FTP helper"); + + $natrules .= "\n# FTP Proxy/helper\n"; + /* build an array of interfaces to work with */ + $iflist = array("lan" => "LAN"); + for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) + $iflist['opt' . $i] = "opt{$i}"; + $interface_counter = 0; + $vpns_list = get_vpns_list(); + /* prevent 1:1 ips from pftpx, they will be handled by ftp-sesame */ + if($config['nat']['onetoone']) + foreach ($config['nat']['onetoone'] as $vipent) + $onetoone_list .= "{$vipent['internal']} "; + if($onetoone_list) + $natrules .= "table { $onetoone_list }\n"; + if($vpns_list) + $natrules .= "table { $vpns_list }\n"; + /* loop through all interfaces and handle pftpx redirections */ + foreach ($iflist as $ifent => $ifname) { + $ifname_lower = convert_friendly_interface_to_friendly_descr(strtolower($ifname)); + $realif = convert_friendly_interface_to_real_interface_name(strtolower($ifname)); + $int_ip = find_interface_ip($realif); + if(isset($config['interfaces'][strtolower($ifname)]['disableftpproxy'])) { + if($g['debug']) + log_error("Filter: FTP proxy disabled for interface {$ifname} - ignoring."); + $interface_counter++; + continue; + } + if(stristr($ifname, "opt")) { + if(!isset($config['interfaces'][$ifname]['enable'])) { + continue; + } + } + /* are we in routed mode? no source nat rules and not a outside interface? */ + /* If we have advanced outbound nat we skip the FTP proxy, we use ftpsesame */ + if((isset($config['nat']['advancedoutbound']['enable'])) && (! interface_has_gateway($ifname))) { + $sourcenat = 0; + /* we are using advanced outbound nat, are we in routing mode? */ + $realif = convert_friendly_interface_to_real_interface_name($ifname); + /* if the interface address lies within a outbound NAT source network we should skip */ + if(! empty($config['nat']['advancedoutbound']['rule'])) { + foreach($config['nat']['advancedoutbound']['rule'] as $natnetwork) { + if(ip_in_subnet($int_ip, $natnetwork['source']['network'])) { + /* if the interface address is matched in the AON Rule we need the ftp proxy */ + $sourcenat++; + } + } + } + if($sourcenat == 0) { + if($g['debug']) + log_error("Filter: No AON rule matched for interface {$ifname} - not using the FTP proxy"); + $interface_counter++; + continue; + } else { + if($g['debug']) + log_error("Filter: AON Rule matched for interface {$ifname} - using FTP proxy"); + } + } + $tmp_port = 8021 + $interface_counter; + $tmp_interface = convert_friendly_interface_to_real_interface_name($ifname); + $ifname_lower = strtolower(convert_friendly_interface_to_friendly_descr($ifname)); + $vpns = get_vpns_list(); + /* if the user has defined, include the alias so that we do not redirect ftp + connections across the tunnels to pftpx */ + $int_ip = find_interface_ip($tmp_interface); + /* if interface lacks an ip, dont setup a rdr for ftp. they are most likely on a bridged interface */ + if($int_ip and $vpns_list) + if($ifname_lower) { + $natrules .= "no rdr on $tmp_interface proto tcp from any to port 21\n"; + if($onetoone_list) + $natrules .= "no rdr on $tmp_interface proto tcp from to any port 21\n"; + } + if($ifname_lower) + $natrules .= "rdr on $tmp_interface proto tcp from any to any port 21 -> 127.0.0.1 port {$tmp_port}\n"; + $interface_counter++; + } + $natrules .= "\n"; + + /* DIAG: add ipv6 NAT, if requested */ + if (isset($config['diag']['ipv6nat']['enable']) and $config['diag']['ipv6nat']['ipaddr'] <> "") { + /* XXX: FIX ME! IPV6 */ + $natrules .= "rdr on \$wan proto ipv6 from any to any -> {$config['diag']['ipv6nat']['ipaddr']}\n"; + } + + if(file_exists("/var/etc/inetd.conf")) + mwexec("rm /var/etc/inetd.conf"); + touch("/var/etc/inetd.conf"); + + if (isset($config['nat']['rule'])) { + $natrules .= "# NAT Inbound Redirects\n"; + + if(!isset($config['system']['disablenatreflection'])) { + $inetd_fd = fopen("/var/etc/inetd.conf","w"); + /* start redirects on port 19000 of localhost */ + $starting_localhost_port = 19000; + } + + foreach ($config['nat']['rule'] as $rule) { + + update_filter_reload_status("Creating NAT rule {$rule['descr']}"); + + /* if item is an alias, expand */ + $extport = ""; + unset($extport); + if(alias_expand($rule['external-port'])) + $extport[0] = alias_expand_value($rule['external-port']); + else + $extport = explode("-", $rule['external-port']); + + /* if item is an alias, expand */ + if(alias_expand($rule['local-port'])) + $localport = ""; + else + $localport = " port {$rule['local-port']}"; + + $target = alias_expand_host($rule['target']); + + if (!$target) { + $natrules .= "# Unresolvable alias {$rule['target']}\n"; + continue; /* unresolvable alias */ + } + + # use tables for aliases in rdr + if (!is_ipaddr($target)) { + $natrules .= "table <{$rule['target']}> { $target }\n"; + $target = "<{$rule['target']}>"; + } + + if ($rule['external-address']) + if($rule['external-address'] <> "any") + $extaddr = $rule['external-address'] . "/32"; + else + $extaddr = $rule['external-address']; + else + $extaddr = get_current_wan_address($rule['interface']); + + if (!$rule['interface'] || ($rule['interface'] == "wan")) + $natif = $wanif; + else if($rule['interface'] == "\$pptp") + $natif = "pptp"; + else if($rule['interface'] == "\$pppoe") + $natif = "pppoe"; + else + $natif = $config['interfaces'][$rule['interface']]['if']; + + $lanif = $lancfg['if']; + + /* + * Expand aliases + * XXX: may want to integrate this into pf macros + */ + if(alias_expand($target)) + $target = alias_expand($target); + if(alias_expand($extaddr)) + $extaddr = alias_expand($extaddr); + + /* + * If FTP Proxy Helper is enabled and the + * operator has requested a port forward to + * a ftp server then launch a helper + */ + $dontinstallrdr = false; + if($target <> "") { + $external_address = $rule['external-address']; + if($extport[0] == "21" and !isset($config['interfaces'][strtolower($rule['interface'])]['disableftpproxy'])) { + $helpers = exec("/bin/ps awux | grep \"{$target} -b {$external_address}\" | grep -v grep"); + if(!$helpers) { + if($external_address == "") + $external_address = find_interface_ip(get_real_wan_interface()); + /* install a pftpx helper, do not set a rule. also use the delay filter configure run + * routines because if this is the first bootup the filter is not completely configured + * and thus pf is not fully running. otherwise we end up with: pftpx: pf is disabled + */ + if(isset($config['shaper']['enable'])) { + if(isset($config['ezshaper']['step5']['p2pcatchall'])) { + $shaper_queue = "-q qP2PUp "; + } else { + $upq = "q" . convert_friendly_interface_to_friendly_descr($config['ezshaper']['step2']['outside_int']); + $shaper_queue = "-q {$upq}def "; + } + } else { + $shaper_queue = ""; + } + $after_filter_configure_run[] = "/usr/local/sbin/pftpx {$shaper_queue}-f {$target} -b {$external_address} -c 21 -g 21"; + } + $dontinstallrdr = true; + } + } + + if($extaddr == "") + $dontinstallrdr = true; + + $rdr_on = convert_real_interface_to_friendly_descr($rule['interface']); + + if($dontinstallrdr == false) { + /* is rule a port range? */ + if ((!$extport[1]) || ($extport[0] == $extport[1])) { + + switch ($rule['protocol']) { + case "tcp/udp": + if($natif) { + if($rule['external-port'] <> $rule['local-port']) + $natrules .= "{$nordr}rdr on $natif proto { tcp udp } from any to {$extaddr} port { {$extport[0]} } -> {$target}{$localport}"; + else + $natrules .= "{$nordr}rdr on $natif proto { tcp udp } from any to {$extaddr} port { {$extport[0]} } -> {$target}"; + } + break; + case "udp": + case "tcp": + if($extport[0]) + if($natif) { + if($rule['external-port'] <> $rule['local-port']) + $natrules .= "rdr on $natif proto {$rule['protocol']} from any to {$extaddr} port { {$extport[0]} } -> {$target}{$localport}"; + else + $natrules .= "rdr on $natif proto {$rule['protocol']} from any to {$extaddr} port { {$extport[0]} } -> {$target}"; + } + else + if($natif) + $natrules .= "rdr on $natif proto {$rule['protocol']} from any to {$extaddr} -> {$target}{$localport}"; + break; + default: + $natrules .= "rdr on $natif proto {$rule['protocol']} from any to {$extaddr} -> {$target}"; + break; + } + } else { + switch ($rule['protocol']) { + case "tcp/udp": + if($natif) + $natrules .= "{$nordr}rdr on $natif proto { tcp udp } from any to {$extaddr} port {$extport[0]}:{$extport[1]} -> {$target}{$localport}:*"; + break; + case "udp": + case "tcp": + if($natif) + $natrules .= "{$nordr}rdr on $natif proto {$rule['protocol']} from any to {$extaddr} port {$extport[0]}:{$extport[1]} -> {$target}{$localport}:*"; + break; + default: + if($natif) + $natrules .= "{$nordr}rdr on $natif proto {$rule['protocol']} from any to {$extaddr} -> {$target}"; + } + } + } + + /* does this rule redirect back to a internal host? + * if so, add some extra goo to help this work. + */ + $rule_friendly_if = convert_friendly_interface_to_real_interface_name($rule['interface']); + $rule_interface_ip = find_interface_ip($rule_friendly_if); + $rule_interface_subnet = $config['interfaces'][$rule['interface']]['subnet']; + $rule_subnet = gen_subnet($rule_interface_ip, $rule_interface_subnet); + if($rule['external-address'] == "any" and $rule['interface'] == "lan") { + $natrules .= "\n"; + if($rule_friendly_if) + $natrules .= "no nat on {$rule_friendly_if} proto tcp from {$rule_friendly_if} to {$rule_subnet}/{$rule_interface_subnet}\n"; + if($rule_friendly_if) + $natrules .= "nat on {$rule_friendly_if} proto tcp from {$rule_subnet}/{$rule_interface_subnet} to {$target} port {$extport[0]} -> {$rule_friendly_if}\n"; + } + + if(!isset($config['system']['disablenatreflection'])) { + + update_filter_reload_status("Setting up reflection"); + + $natrules .= "\n# Reflection redirects\n"; + foreach ($iflist as $ifent => $ifname) { + + /* do not process interfaces with gateways*/ + if($config['interfaces'][$ifname]['gateway'] <> "") + continue; + + /* do not process interfaces that will end up with gateways */ + if($config['interfaces'][$ifname]['ipaddr'] == "dhcp" or + $config['interfaces'][$ifname]['ipaddr'] == "bigpond" or + $config['interfaces'][$ifname]['ipaddr'] == "pppoe" or + $config['interfaces'][$ifname]['ipaddr'] == "pptp") + continue; + + $ifname_real = convert_friendly_interface_to_real_interface_name($ifname); + + if($extport[1]) + $range_end = ($extport[1]); + else + $range_end = ($extport[0]); + + $range_end++; + + if($rule['local-port']) + $lrange_start = $rule['local-port']; + + if($range_end - $extport[0] > 500) { + $range_end = $extport[0]+1; + log_error("Not installing nat reflection rules for a port range > 500"); + } else { + /* only install reflection rules for < 19991 items */ + if($starting_localhost_port < 19991) { + $loc_pt = $lrange_start; + for($x=$extport[0]; $x<$range_end; $x++) { + + $xxx = $x; + + /* do not install reflection rules for FTP. This simply + * opens up pandoras box. + */ + if($xxx == "21") + continue; + + update_filter_reload_status("Creating reflection rule for {$rule['descr']}..."); + + $ifname_real = convert_friendly_interface_to_friendly_descr(strtolower($ifname)); + + if($config['system']['reflectiontimeout']) + $reflectiontimeout = $config['system']['reflectiontimeout']; + else + $reflectiontimeout = "2000"; + + switch($rule['protocol']) { + + case "tcp/udp": + $protocol = "{ tcp udp }"; + $toadd_array = array(); + if(is_alias($loc_pt)) { + $loc_pt_translated = alias_expand_value($loc_pt); + if(stristr($loc_pt_translated, " ")) { + /* XXX: we should deal with multiple ports */ + $loc_pt_translated_split = split(" ", $loc_pt_translated); + foreach($loc_pt_translated_split as $lpts) + $toadd_array[] = $lpts; + } else { + $toadd_array[] = $loc_pt_translated; + } + } else { + $loc_pt_translated = $loc_pt; + $toadd_array[] = $loc_pt_translated; + } + foreach($toadd_array as $tda){ + fwrite($inetd_fd, "{$starting_localhost_port}\tstream\ttcp/udp\tnowait/0\tnobody\t/usr/bin/nc nc -u -w {$reflectiontimeout} {$target} {$tda}\n"); + if($ifname_real) + $natrules .= "rdr on \${$ifname_real} proto tcp from any to {$extaddr} port { {$xxx} } -> 127.0.0.1 port {$starting_localhost_port}\n"; + $starting_localhost_port++; + fwrite($inetd_fd, "{$starting_localhost_port}\tstream\ttcp/udp\tnowait/0\tnobody\t/usr/bin/nc nc -w {$reflectiontimeout} {$target} {$tda}\n"); + if($ifname_real) + $natrules .= "rdr on \${$ifname_real} proto udp from any to {$extaddr} port { {$xxx} } -> 127.0.0.1 port {$starting_localhost_port}\n"; + $xxx++; + $starting_localhost_port++; + } + break; + case "tcp": + case "udp": + $protocol = $rule['protocol']; + $toadd_array = array(); + if(is_alias($loc_pt)) { + $loc_pt_translated = alias_expand_value($loc_pt); + if(stristr($loc_pt_translated, " ")) { + /* XXX: we should deal with multiple ports */ + $loc_pt_translated_split = split(" ", $loc_pt_translated); + foreach($loc_pt_translated_split as $lpts) + $toadd_array[] = $lpts; + } else { + $toadd_array[] = $loc_pt_translated; + } + } else { + $loc_pt_translated = $loc_pt; + $toadd_array[] = $loc_pt_translated; + } + foreach($toadd_array as $tda){ + if($protocol == "udp") + $dash_u = "-u "; + else + $dash_u = ""; + if($config['system']['reflectiontimeout']) + $reflectiontimeout = $config['system']['reflectiontimeout']; + else + $reflectiontimeout = "20"; + fwrite($inetd_fd, "{$starting_localhost_port}\tstream\t{$protocol}\tnowait/0\tnobody\t/usr/bin/nc nc {$dash_u}-w {$reflectiontimeout} {$target} {$tda}\n"); + if($ifname_real) + $natrules .= "rdr on \${$ifname_real} proto {$protocol} from any to {$extaddr} port { {$xxx} } -> 127.0.0.1 port {$starting_localhost_port}\n"; + $xxx++; + $starting_localhost_port++; + } + break; + default: + break; + } + $loc_pt++; + if($starting_localhost_port > 19990) { + log_error("Not installing nat reflection rules. Maximum 1,000 reached."); + $x = $range_end+1; + } + } + } + } + + } + + } + + $natrules .= "\n"; + } + + if(!isset($config['system']['disablenatreflection'])) { + fclose($inetd_fd); + $helpers = trim(exec("/bin/ps ax | /usr/bin/grep inetd | /usr/bin/grep -v grep | /usr/bin/grep 127")); + if(!$helpers) + mwexec("/usr/sbin/inetd -wW -R 0 -a 127.0.0.1 /var/etc/inetd.conf"); + else + mwexec("/usr/bin/killall -HUP inetd"); + + } + } + + if ($pptpdcfg['mode'] && $pptpdcfg['mode'] != "off") { + + if ($pptpdcfg['mode'] == "server") + $pptpdtarget = "127.0.0.1"; + else if ($pptpdcfg['mode'] == "redir") + $pptpdtarget = $pptpdcfg['redir']; + + if ($pptpdcfg['mode'] == "redir") { + + $natrules .= << $pptpdtarget +rdr on \$wan proto tcp from any to any port 1723 -> $pptpdtarget + +EOD; + } + } + + if (is_package_installed('squid') && file_exists('/usr/local/pkg/squid.inc')) { + require_once('squid.inc'); + $natrules .= squid_generate_rules('nat'); + } + + if (is_package_installed('clamav') && file_exists('/usr/local/pkg/clamav.inc')) { + require_once('clamav.inc'); + $natrules .= clamav_generate_rules('nat'); + } + + if (is_package_installed('frickin') && file_exists('/usr/local/pkg/frickin.inc')) { + require_once ('frickin.inc'); + $natrules .= frickin_generate_rules('nat'); + } + + if (is_package_installed('siproxd') && file_exists('/usr/local/pkg/sipproxd.inc')) { + require_once('sipproxd.inc'); + $natrules .= siproxd_generate_rules('nat'); + } + + $natrules .= process_carp_nat_rules(); + + $natrules .= "# IMSpector rdr anchor\n"; + $natrules .= "rdr-anchor \"imspector\"\n"; + + $natrules .= "# UPnPd rdr anchor\n"; + $natrules .= "rdr-anchor \"miniupnpd\"\n"; + + return $natrules; +} + +function run_command_return_string($cmd) { + global $config; + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "generate_user_filter_rule() being called $mt\n"; + } + + $fd = popen($cmd, "r"); + while(!feof($fd)) { + $tmp .= fread($fd,49); + } + fclose($fd); + return $tmp; +} + +function generate_user_filter_rule_arr($rule, $ngcounter) { + global $config; + update_filter_reload_status("Creating filter rules {$rule['descr']} ..."); + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "generate_user_filter_rule() being called $mt\n"; + } + $ret = array(); + $line = generate_user_filter_rule($rule, $ngcounter); + $ret['rule'] = $line; + $ret['interface'] = $rule['interface']; + if ($line[0] != '#') { + if($rule['descr'] != "" and $line != "") + $ret['descr'] = "label \"USER_RULE: " . str_replace('"', '', $rule['descr']) . "\""; + else + $ret['descr'] = "label \"USER_RULE\""; + } + $ret['ackq'] = get_ack_queue($rule['interface']); + + return $ret; +} + +function generate_user_filter_rule($rule, $ngcounter) { + global $config, $g; + global $table_cache; + global $schedule_enabled; + + if($config['schedules']) { + foreach($config['schedules']['schedule'] as $sched) { + $schedule_enabled = true; + break; + } + } + + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "generate_user_filter_rule() being called $mt\n"; + } + + /* Setup cache array if not already existing */ + if (!isset($table_cache)) { + if ($g['debug']) + echo "Creating table cache\n"; + $table_cache = array(); + } + + update_filter_reload_status("Creating filter rules {$rule['descr']} ..."); + + $wancfg = $config['interfaces']['wan']; + $lancfg = $config['interfaces']['lan']; + $pptpdcfg = $config['pptpd']; + $pppoecfg = $config['pppoe']; + + $lanif = $lancfg['if']; + $wanif = get_real_wan_interface(); + + $lanip = $lancfg['ipaddr']; + $lansa = gen_subnet($lancfg['ipaddr'], $lancfg['subnet']); + $lansn = $lancfg['subnet']; + + $int = ""; + + $optcfg = array(); + generate_optcfg_array($optcfg); + + $curwanip = get_current_wan_address(); + + /* don't include disabled rules */ + if (isset($rule['disabled'])) { + return "# rule " . $rule['descr'] . " disabled "; + } + + $pptpdcfg = $config['pptpd']; + $pppoecfg = $config['pppoe']; + + if ($pptpdcfg['mode'] == "server") { + $pptpip = $pptpdcfg['localip']; + $pptpsa = $pptpdcfg['remoteip']; + $pptpsn = $g['pptp_subnet']; + if($config['pptp']['pptp_subnet'] <> "") + $pptpsn = $config['pptp']['pptp_subnet']; + } + + if ($pppoecfg['mode'] == "server") { + $pppoeip = $pppoecfg['localip']; + $pppoesa = $pppoecfg['remoteip']; + $pppoesn = $g['pppoe_subnet']; + if($config['pppoe']['pppoe_subnet'] <> "") + $pppoesn = $config['pppoe']['pppoe_subnet']; + } + + /* does the rule deal with a PPTP interface? */ + if ($rule['interface'] == "pptp") { + if ($pptpdcfg['mode'] != "server") + return ""; + $nif = $g['n_pptp_units']; + if($config['pptp']['n_pptp_units'] <> "") + $nif = $config['pptp']['n_pptp_units']; + $ispptp = true; + } else if($rule['interface'] == "pppoe") { + if ($pppoecfg['mode'] != "server") { + return " # Error creating pppoe rule"; + } + $nif = $g['n_pppoe_units']; + if($config['pppoe']['n_pppoe_units'] <> "") + $nif = $config['pppoe']['n_pppoe_units']; + $ispppoe = true; + } else if(!isset($rule['interface'])) { + return '# Interface empty for rule: '.$rule['descr']; + } else { + + /* Check to see if the interface is opt and in our opt list */ + if (strstr($rule['interface'], "opt")) { + if (!array_key_exists($rule['interface'], $optcfg)) { + $item = ""; + foreach($optcfg as $oc) $item .= $oc['if']; + return "# {$real_int} {$item} {$rule['interface']} array key does not exist for " . $rule['descr']; + } + } + + $nif = 1; + $ispptp = false; + $ispppoe = false; + } + + if ($pptpdcfg['mode'] != "server") { + if (($rule['source']['network'] == "pptp") || + ($rule['destination']['network'] == "pptp")) { + return "# source network or destination network == pptp on " . $rule['descr']; + } + } + + if ($rule['source']['network'] && strstr($rule['source']['network'], "opt")) { + if (!array_key_exists($rule['source']['network'], $optcfg)) { + $optmatch = ""; + if(preg_match("/opt([0-999])/", $rule['source']['network'], $optmatch)) { + $real_opt_int = convert_friendly_interface_to_real_interface_name("opt" . $optmatch[1]); + $opt_ip = find_interface_ip($real_opt_int); + if(!$opt_ip) + return "# unresolvable optarray $real_opt_int - $optmatch[0] - $opt_ip"; + } else { + return "# {$rule['source']['network']} !array_key_exists source network " . $rule['descr']; + } + } + } + if ($rule['destination']['network'] && strstr($rule['destination']['network'], "opt")) { + if (!array_key_exists($rule['destination']['network'], $optcfg)) { + if(preg_match("/opt([0-999])/", $rule['destination']['network'], $optmatch)) { + $real_opt_int = convert_friendly_interface_to_real_interface_name("opt" . $optmatch[1]); + $opt_ip = find_interface_ip($real_opt_int); + if(!$opt_ip) + return "# unresolvable oparray $real_opt_int - $optmatch[0] - $opt_ip"; + } else { + return "# {$item} {$rule['destination']['network']} !array_key_exists dest network " . $rule['descr']; + } + } + } + + /* check for unresolvable aliases */ + if ($rule['source']['address'] && !alias_expand($rule['source']['address'])) { + file_notice("Filter_Reload", "# unresolvable source aliases {$rule['descr']}"); + return "# unresolvable source aliases {$rule['descr']}"; + } + if ($rule['destination']['address'] && !alias_expand($rule['destination']['address'])) { + file_notice("Filter_Reload", "# unresolvable dest aliases {$rule['descr']}"); + return "# unresolvable dest aliases {$rule['descr']}"; + } + + $ifdescrs = array(); + for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) + $ifdescrs[] = "opt" . $i; + + update_filter_reload_status("Setting up pass/block rules"); + + for ($iif = 0; $iif < $nif; $iif++) { + + $type = $rule['type']; + + + if ($type != "pass" && $type != "block" && $type != "reject") { + /* default (for older rules) is pass */ + $type = "pass"; + } + + if ($type == "reject") { + /* special reject packet */ + if ($rule['protocol'] == "tcp") { + $aline['type'] = "block return-rst"; + } else if ($rule['protocol'] == "udp") { + $aline['type'] = "block return-icmp"; + } else if ($rule['protocol'] == "tcp/udp") { + $aline['type'] = "block return"; + } else { + $aline['type'] = "block"; + } + } else { + $aline['type'] = $type; + } + + /* ensure the direction is in */ + $aline['direction'] = " in "; + + if (isset($rule['log'])) + $aline['log'] = "log "; + + $aline['quick'] = "quick "; + + if ($ispptp) { + $aline['interface'] = "on \$pptp "; + } else if ($ispppoe) { + $aline['interface'] = "on \$pppoe "; + } else { + // translate wan, man, lan, opt to real interface. + $interface = $rule['interface']; + $temp = filter_get_opt_interface_descr($interface); + if($temp <> "") $interface = $temp; + if(isset($rule['destination']['address'])) { + $canadd = 0; // XXX: billm - eh? this is a nice little noop + /* because pf will not allow a interface for proxyARP + type traffic lets check if its in use and if so leave + off the interface */ + if(is_one_to_one_or_server_nat_rule($rule['destination']['address'])) + $canadd = 0; + } + if($canadd == 0) + $aline['interface'] = "on \$" . convert_real_interface_to_friendly_descr($rule['interface']) . " "; + } + + + /* set the gateway interface */ + $ri = filter_translate_type_to_real_interface($rule['interface']); + + update_filter_reload_status("Setting up pass/block rules {$rule['descr']}"); + + /* + * check to see if /tmp/{${ri}_router exists. This file + * is created by dhclient for 2nd wan interfaces, etc. + * else get gateway from the interface config + */ + if(file_exists("{$g['tmp_path']}/{$ri}_router")) { + $rg = file_get_contents("{$g['tmp_path']}/{$ri}_router"); + $rg = rtrim($rg); + } elseif ($config['interfaces'][$rule['interface']]['gateway'] <> "") { + $rg = $config['interfaces'][$rule['interface']]['gateway']; + } + + /* do not process reply-to for gateway'd rules */ + if(($rule['gateway'] == "") and ($ri != "") and ($rg != "") and (stristr($rule['interface'],"opt") == true)) { + $aline['reply'] = "reply-to (" . $ri . " " . $rg . ") "; + } + + /* if user has selected a custom gateway, lets work with it */ + if($rule['gateway'] <> "") { + $foundlb = 0; + $routeto = " route-to { "; + if(is_array($config['load_balancer']['lbpool'])) { + foreach($config['load_balancer']['lbpool'] as $lb) { + update_filter_reload_status("Creating load balancing item..."); + if($lb['name'] == $rule['gateway']) { + $gateway = $rule['gateway']; + /* + * is $gateway a interface name? + * if so, lets find out the gateway address + * from /tmp/router_bleh.router + */ + if(in_array($gateway, $ifdescrs)==true) { + if(is_file("{$g['tmp_path']}/{$gateway}_router")) { + $return_gateway = file_get_contents("{$g['tmp_path']}/{$gateway}_router"); + } else { + log_error("Could not find {$g['tmp_path']}/{$gateway}_router. Needed for dhcp gateway information"); + continue; + } + } + /* if /tmp/$lbname.pool exists then read in our gateway hints from slbd */ + if(file_exists("{$g['tmp_path']}/{$lb['name']}.pool")) { + $lbs_tmp = split("\n", file_get_contents("{$g['tmp_path']}/{$lb['name']}.pool")); + $lbs = array(); + /* process the entire file to prevent empty lines */ + foreach($lbs_tmp as $lb_tmp) { + if(is_ipaddr($lb_tmp)) { + $lbs[] = $lb_tmp; + } + } + $lbs_count = count($lbs); + if($g['debug']) + log_error("We found $lbs_count valid entries in status file {$g['tmp_path']}/{$lb['name']}.pool"); + + if(count($lbs) == 0) { + if($g['debug']) + log_error("There are no servers found in the status file, using XML config settings!"); + foreach ($lb['servers'] as $lbsvr) { + $lbsvr_split = split("\|", $lbsvr); + $lbs[] = $lbsvr_split[1]; + } + } + } else { + if($g['debug']) + log_error("There is no server status file, using XML config settings!"); + $lbs = array(); + foreach ($lb['servers'] as $lbsvr) { + $lbsvr_split = split("\|", $lbsvr); + $lbs[] = $lbsvr_split[1]; + } + } + /* If we want failover we only return the first (top) server from the list + * and work our way down from there. This way we order the failover order. + */ + if($lb['behaviour'] == "failover") { + $firstsrv = $lbs[0]; + $lbs = array("$firstsrv"); + } + + /* create server/gateway gateway/monitor array */ + $l = 0; + $lbconfig = array(); + foreach ($lb['servers'] as $lbsvr) { + $lbsvr_split=split("\|", $lbsvr); + $lbconfig['gateway'][$l] = $lbsvr_split[0]; + $lbconfig['monitor'][$l] = $lbsvr_split[1]; + $l++; + } + $lbconfig_count = count($lbconfig['gateway']); + + $l = 0; + while($l < $lbconfig_count) { + /* iterate through $lbs and setup items accordingly */ + foreach($lbs as $server) { + if ($server == "") + continue; + unset($gateway, $int); + if ($lbconfig['monitor'][$l] == $server) { + /* determine interface gateway */ + if(is_ipaddr($lbconfig['gateway'][$l])) { + $int = guess_interface_from_ip($lbconfig['gateway'][$l]); + $gateway = $lbconfig['gateway'][$l]; + log_error("SLBD pool {$lb['name']} is old style. Please recreate."); + } else if(interface_has_gateway($lbconfig['gateway'][$l])) { + $int = convert_friendly_interface_to_real_interface_name($lbconfig['gateway'][$l]); + $gateway = get_interface_gateway($lbconfig['gateway'][$l]); + } + if(($int <> "") && ($gateway <> "")) { + if($g['debug']) + log_error("Setting up route with {$lbconfig['gateway'][$l]} om $int for monitor {$lbconfig['monitor'][$l]} on gateway $gateway"); + if($foundlb == 1) + $routeto .= ", "; + $routeto .= "( {$int} {$gateway} ) "; + $foundlb = 1; + } + /* we have a match, go forth and try the next LB item so we don't setup multiples incorrectly */ + $l++; + continue; + } + } + $l++; + } + /* If we want failover just use route-to else round-robin */ + if($lb['behaviour'] == "failover") { + $routeto .= "} "; + } else { + $routeto .= "} round-robin "; + if(isset($config['system']['lb_use_sticky'])) + $routeto .= " sticky-address "; + } + } + } + /* Add the load balanced gateways */ + if ($foundlb == 1) + $aline['route'] = $routeto; + } + /* we're not using load balancing, just setup gateway */ + if($foundlb == 0) { + $gateway = $rule['gateway']; + /* + * is $gateway a interface name? + * if so, lets find out the gateway address + * from /tmp/router_bleh.router + */ + if(in_array($gateway, $ifdescrs)==true) { + $int=filter_opt_interface_to_real($gateway); + if(is_file("{$g['tmp_path']}/{$int}_router")) { + $gatewayip = file_get_contents("{$g['tmp_path']}/{$int}_router"); + $gatewayip = rtrim($gatewayip); + if (is_ipaddr($gatewayip)) { + $aline['route'] = " route-to ( {$int} {$gatewayip} ) "; + } + } else { + log_error("Could not find {$g['tmp_path']}/{$int}_router. Needed for dhcp gateway information"); + continue; + } + } else { + /* user picked a real gateway ip */ + if(is_ipaddr($rule['gateway'])) { + $gatewayip = $rule['gateway']; + $int = guess_interface_from_ip($gatewayip); + $aline['route'] = " route-to ( " . guess_interface_from_ip($rule['gateway']) . " {$rule['gateway']} ) "; + } + } + } + } + + if (isset($rule['protocol'])) { + if($rule['protocol'] == "tcp/udp") + $aline['prot'] = "proto { tcp udp } "; + elseif($rule['protocol'] == "icmp") + $aline['prot'] = "inet proto icmp "; + else + $aline['prot'] = "proto {$rule['protocol']} "; + } else { + if($rule['source']['port'] <> "" || $rule['destination']['port'] <> "") { + $aline['prot'] = "proto tcp "; + } + } + + update_filter_reload_status("Creating rule {$rule['descr']}"); + + /* source address */ + if (isset($rule['source']['any'])) { + $src = "any"; + } else if ($rule['source']['network']) { + + if (strstr($rule['source']['network'], "opt")) { + $src = $optcfg[$rule['source']['network']]['sa'] . "/" . + $optcfg[$rule['source']['network']]['sn']; + if (isset($rule['source']['not'])) $src = " !{$src}"; + /* check for opt$NUMip here */ + $matches = ""; + if (preg_match("/opt([0-9999])ip/", $rule['source']['network'], $matches)) { + $optnum = $matches[1]; + $real_int = convert_friendly_interface_to_real_interface_name("opt{$optnum}"); + $src = find_interface_ip($real_int); + } + } else { + switch ($rule['source']['network']) { + case 'wanip': + $src = $curwanip; + break; + case 'lanip': + $src = $lanip; + break; + case 'lan': + $src = "{$lansa}/{$lansn}"; + break; + case 'pptp': + $src = "{$pptpsa}/{$pptpsn}"; + break; + case 'pppoe': + $src = "{$pppoesa}/{$pppoesn}"; + break; + } + if (isset($rule['source']['not'])) $src = "!{$src}"; + } + } else if ($rule['source']['address']) { + $expsrc = alias_expand($rule['source']['address']); + + if (isset($rule['source']['not'])) + $not = "!"; + else + $not = ""; + + if (stristr($expsrc, "$")) { + if($not) { + $src = "{"; + foreach(preg_split("/[\s]+/", alias_expand_value($rule['source']['address'])) as $item) { + if($item != "") { + $src .= " {$not}{$item}"; + } + } + /* added support for tables */ + $src .= " 0/0 }"; + $src_table = ""; + } + else { + $src = "{ {$not} " . alias_expand_value($rule['source']['address']) . " } "; + $src_table = "<" . $rule['source']['address'] . ">"; + } + + /* support for tables */ + $src_table_line = "table $src_table {$src}\n"; + $src = $src_table; + } + else + $src = "{ {$not} {$expsrc} }"; + } + + if (!$src || ($src == "/")) { + return "# at the break!"; + } + + $aline['src'] = "from $src "; + + if (in_array($rule['protocol'], array("tcp","udp","tcp/udp"))) { + + if ($rule['source']['port']) { + $srcport = explode("-", $rule['source']['port']); + if(alias_expand($srcport[0])) + $srcporta = alias_expand($srcport[0]); + else + $srcporta = $srcport[0]; + if ((!$srcport[1]) || ($srcport[0] == $srcport[1])) { + if(alias_expand($srcport[0])) + $aline['srcport'] = "port {$srcporta} "; + else + $aline['srcport'] = "port = {$srcporta} "; + } else if (($srcport[0] == 1) && ($srcport[1] == 65535)) { + /* no need for a port statement here */ + } else if ($srcport[1] == 65535) { + $aline['srcport'] = "port >= {$srcport[0]} "; + } else if ($srcport[0] == 1) { + $aline['srcport']= "port <= {$srcport[1]} "; + } else { + $srcport[0]--; + $srcport[1]++; + $aline['srcport'] = "port {$srcport[0]} >< {$srcport[1]} "; + } + } + /* OS signatures */ + if (($rule['protocol'] == "tcp") && ($rule['os'] <> "")) + $aline['os'] = "os {$rule['os']} "; + + } + + /* destination address */ + if (isset($rule['destination']['any'])) { + $dst = "any"; + } else if ($rule['destination']['network']) { + + if (strstr($rule['destination']['network'], "opt")) { + $dst = $optcfg[$rule['destination']['network']]['sa'] . "/" . + $optcfg[$rule['destination']['network']]['sn']; + /* check for opt$NUMip here */ + $matches = ""; + if (preg_match("/opt([0-9999])ip/", $rule['destination']['network'], $matches)) { + $optnum = $matches[1]; + $real_int = convert_friendly_interface_to_real_interface_name("opt{$optnum}"); + $dst = find_interface_ip($real_int); + } + if (isset($rule['destination']['not'])) $dst = " !{$dst}"; + } else { + switch ($rule['destination']['network']) { + case 'wanip': + $dst = $curwanip; + break; + case 'lanip': + $dst = $lanip; + break; + case 'lan': + $dst = "{$lansa}/{$lansn}"; + break; + case 'pptp': + $dst = "{$pptpsa}/{$pptpsn}"; + break; + case 'pppoe': + $dst = "{$ppoesa}/{$pppoesn}"; + break; + } + if (isset($rule['destination']['not'])) $dst = " !{$dst}"; + } + } else if ($rule['destination']['address']) { + $expdst = alias_expand($rule['destination']['address']); + + if (isset($rule['destination']['not'])) + $not = "!"; + else + $not = ""; + + if (stristr($expdst, "$")) { + if($not) { + $dst = "{"; + foreach(preg_split("/[\s]+/", alias_expand_value($rule['destination']['address'])) as $item) { + if($item != "") { + $dst .= " {$not}{$item}"; + } + } + /* added support for tables */ + $dst .= " 0/0 }"; + $dst_table = ""; + } + else { + $dst = "{ {$not} " . alias_expand_value($rule['destination']['address']) . " } "; + $dst_table = "<" . $rule['destination']['address'] . ">"; + } + + /* support for tables */ + $dst_table_line = "table $dst_table {$dst}\n"; + $dst = $dst_table; + } + else + $dst = "{ {$not} {$expdst} }"; + } + + if (!$dst || ($dst == "/")) { + return "# returning at dst $dst == \"/\""; + } + + $aline['dst'] = "to $dst "; + + if (in_array($rule['protocol'], array("tcp","udp","tcp/udp"))) { + + if ($rule['destination']['port']) { + $dstport = explode("-", $rule['destination']['port']); + if(alias_expand($dstport[0])) + $dstporta = alias_expand($dstport[0]); + else + $dstporta = $dstport[0]; + if ((!$dstport[1]) || ($dstport[0] == $dstport[1])) { + if(alias_expand($dstport[0])) + $aline['dstport'] = "port {$dstporta} "; + else + $aline['dstport'] = "port = {$dstporta} "; + } else if (($dstport[0] == 1) && ($dstport[1] == 65535)) { + /* no need for a port statement here */ + } else if ($dstport[1] == 65535) { + $aline['dstport'] = "port >= {$dstport[0]} "; + } else if ($dstport[0] == 1) { + $aline['dstport'] = "port <= {$dstport[1]} "; + } else { + $dstport[0]--; + $dstport[1]++; + $aline['dstport'] = "port {$dstport[0]} >< {$dstport[1]} "; + } + } + } + + if (($rule['protocol'] == "icmp") && $rule['icmptype']) { + $aline['icmp-type'] = "icmp-type {$rule['icmptype']} "; + } + + if ($type == "pass") { + if (isset($rule['allowopts'])) + $aline['allowopts'] = " allow-opts "; + if( isset($rule['source-track']) or isset($rule['max-src-nodes']) or isset($rule['max-src-states']) ) + if($rule['protocol'] == "tcp") + $aline['flags'] = "flags S/SA "; + /* + # keep state + works with TCP, UDP, and ICMP. + # modulate state + works only with TCP. pfSense will generate strong Initial Sequence Numbers (ISNs) + for packets matching this rule. + # synproxy state + proxies incoming TCP connections to help protect servers from spoofed TCP SYN floods. + This option includes the functionality of keep state and modulate state combined. + # none + do not use state mechanisms to keep track. this is only useful if your doing advanced + queueing in certain situations. please check the faq. + */ + $noadvoptions = false; + if(isset($rule['statetype']) && $rule['statetype'] <> "") { + switch($rule['statetype']) { + case "none": + $noadvoptions = true; + break; + case "modulate state": + case "synproxy state": + if($rule['protocol'] == "tcp") + $aline['flags'] = "{$rule['statetype']} "; + break; + default: + $aline['flags'] = "{$rule['statetype']} "; + } + } else { + $aline['flags'] = "keep state "; + } + if($noadvoptions == false) + if( isset($rule['source-track']) and $rule['source-track'] <> "" or + isset($rule['max-src-nodes']) and $rule['max-src-nodes'] <> "" or + isset($rule['max-src-conn-rate']) and $rule['max-src-conn-rate'] <> "" or + isset($rule['max-src-conn-rates']) and $rule['max-src-conn-rates'] <> "" or + isset($rule['max-src-states']) and $rule['max-src-states'] <> "" or + isset($rule['statetimeout']) and $rule['statetimeout'] <> "") { + $aline['flags'] .= "( "; + if(isset($rule['source-track']) and $rule['source-track'] <> "") + $aline['flags'] .= "source-track rule "; + if(isset($rule['max-src-nodes']) and $rule['max-src-nodes'] <> "") + $aline['flags'] .= "max-src-nodes " . $rule['max-src-nodes'] . " "; + if(isset($rule['max-src-states']) and $rule['max-src-states'] <> "") + $aline['flags'] .= "max-src-states " . $rule['max-src-states'] . " "; + if(isset($rule['statetimeout']) and $rule['statetimeout'] <> "") + $aline['flags'] .= "tcp.established " . $rule['statetimeout'] . " "; + if(isset($rule['max-src-conn-rate']) and $rule['max-src-conn-rate'] <> "" + and isset($rule['max-src-conn-rates']) and $rule['max-src-conn-rates'] <> "") { + $aline['flags'] .= "max-src-conn-rate " . $rule['max-src-conn-rate'] . " "; + $aline['flags'] .= "/" . $rule['max-src-conn-rates'] . ", overload flush global "; + } + $aline['flags'] .= " ) "; + } + } + if ($type == "reject" && $rule['protocol'] == "tcp") { + /* special reject packet */ + $aline['flags'] .= "flags S/SA "; + } + } + + /* cache entries */ + if (isset($src_table)) + if (isset($table_cache[$src_table])) { + if ($g['debug']) + echo "{$src_table} found in cache\n"; + } else { + if ($g['debug']) + echo "{$src_table} NOT found in cache...adding\n"; + $table_cache[$src_table] = $src_table_line; + } + if (isset($dst_table)) + if (isset($table_cache[$dst_table])) { + if ($g['debug']) + echo "{$dst_table} found in cache\n"; + } else { + if ($g['debug']) + echo "{$dst_table} NOT found in cache...adding\n"; + $table_cache[$dst_table] = $dst_table_line; + } + + /* exception(s) to a user rules can go here. */ + /* rules with a gateway or pool should create another rule for routing to local networks or vpns */ + /* we only trigger this for a rule with the destination of any and without a gateway */ + if (($aline['route'] <> "") && ($aline['type'] == "pass") && ($dst == "any") && (! interface_has_gateway($aline['interface']))) { + /* negate VPN/PPTP/PPPoE networks for load balancer rules */ + $vpns = " to "; + $line .= $aline['type'] . $aline['direction'] . $aline['log'] . $aline['quick'] . $aline['interface'] . $aline['prot'] . + $aline['src'] . $aline['srcport'] . $aline['os'] . $vpns . $aline['dstport']. + $aline['icmp-type'] . $aline['allowopts'] . $aline['flags'] . + " label \"NEGATE_ROUTE: Negate policy route for local network(s)\"\n"; + } + + /* piece together the actual user rule */ + $line .= $aline['type'] . $aline['direction'] . $aline['log'] . $aline['quick'] . $aline['interface'] . $aline['reply'] . + $aline['route'] . $aline['prot'] . $aline['src'] . $aline['srcport'] . $aline['os'] . $aline['dst'] . + $aline['dstport'] . $aline['icmp-type'] . $aline['allowopts'] . $aline['flags']; + + /* is a time based rule schedule attached? */ + if($rule['sched']) { + if($config['schedules']) { + foreach($config['schedules']['schedule'] as $sched) { + if($sched['name'] == $rule['sched']) + $schedule_xml_block = $sched; + $schedule_enabled = true; + } + } + if($schedule_xml_block) + $status = get_time_based_rule_status($schedule_xml_block); + if($status) { + if($g['debug']) + log_error("[TDR DEBUG] status true -- rule type '$type'"); + if($type == "block") { + // active deny rules should deny + $ipfw_rule = tdr_create_ipfw_rule($rule, "deny"); + tdr_install_rule($ipfw_rule); + } else { + // active allow rules should allow + $ipfw_rule = tdr_create_ipfw_rule($rule, "allow"); + tdr_install_rule($ipfw_rule); + } + return "$line"; + } else { + /* rule is turned off, if type == pass, deny traffic until + * active else allow traffic until active + */ + if($type == "pass") { + // inactive pass rules should deny + $ipfw_rule = tdr_create_ipfw_rule($rule, "deny"); + tdr_install_rule($ipfw_rule); + } else { + // inactive block rules should skipto + $ipfw_rule = tdr_create_ipfw_rule($rule, "skipto"); + tdr_install_rule($ipfw_rule); + } + return "# $line"; + } + } else { + if($schedule_enabled) { + // no schedule allow rules should simply allow + $ipfw_rule = tdr_create_ipfw_rule($rule, "allow"); + tdr_install_rule($ipfw_rule); + } + return $line; + } +} + +function filter_rules_generate() { + global $config, $g, $table_cache; + + update_filter_reload_status("Creating default rules"); + + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "filter_rules_generate() being called $mt\n"; + } + + $wancfg = $config['interfaces']['wan']; + $lancfg = $config['interfaces']['lan']; + $pptpdcfg = $config['pptpd']; + $pppoecfg = $config['pppoe']; + + $lanif = $lancfg['if']; + $wanif = get_real_wan_interface(); + + $lanip = $lancfg['ipaddr']; + $lansa = gen_subnet($lancfg['ipaddr'], $lancfg['subnet']); + $lansn = $lancfg['subnet']; + + $wanip = find_interface_ip(get_real_wan_interface()); + + if($lansa) + $lansa_sn_combo = "{$lansa}/{$lansn}"; + else + $lansa_sn_combo = "192.168.1.1/32"; + + /* optional interfaces */ + $optcfg = array(); + generate_optcfg_array($optcfg); + + if (is_package_installed('squid') && file_exists('/usr/local/pkg/squid.inc')) { + require_once('squid.inc'); + $ipfrules .= squid_generate_rules('filter'); + } + + if (is_package_installed('clamav') && file_exists('/usr/local/pkg/clamav.inc')) { + require_once('clamav.inc'); + $ipfrules .= clamav_generate_rules('filter'); + } + + if (is_package_installed('clamav') && file_exists('/usr/local/pkg/clamav.inc')) { + require_once('clamav.inc'); + $ipfrules .= clamav_generate_rules('filter'); + } + + if (is_package_installed('frickin') && file_exists('/usr/local/pkg/frickin.inc')) { + require_once ('frickin.inc'); + $ipfrules .= frickin_generate_rules('filter'); + } + + if (is_package_installed('siproxd') && file_exists('/usr/local/pkg/sipproxd.inc')) { + require_once('sipproxd.inc'); + $ipfrules .= siproxd_generate_rules('filter'); + } + + /* if captive portal is enabled, ensure that access to this port + * is allowed on a locked down interface + */ + if (isset($config['captiveportal']['enable'])) { + $cp_interface = $config['captiveportal']['interface']; + $cp_interface_real = convert_friendly_interface_to_real_interface_name($cp_interface); + $cp_interface_ip = find_interface_ip($cp_interface_real); + if($cp_interface_ip and $cp_interface_real) + $ipfrules .= "pass in quick on {$cp_interface_real} proto tcp from any to {$cp_interface_ip} port { 8000 8001 } keep state\n"; + } + + /* ftp-sesame */ + $ipfrules .= "anchor \"ftpsesame/*\" \n"; + + # BEGIN OF firewall rules + $ipfrules .= "anchor \"firewallrules\"\n"; + + if ($pptpdcfg['mode'] == "server") { + $pptpip = $pptpdcfg['localip']; + $pptpsa = $pptpdcfg['remoteip']; + $pptpsn = $g['pptp_subnet']; + if($config['pptp']['pptp_subnet'] <> "") + $pptpsn = $config['pptp']['pptp_subnet']; + } + + if ($pppoecfg['mode'] == "server") { + $pppoeip = $pppoecfg['localip']; + $pppoesa = $pppoecfg['remoteip']; + $pppoesn = $g['pppoe_subnet']; + if($config['pppoe']['pppoe_subnet'] <> "") + $pppoesn = $config['pppoe']['pppoe_subnet']; + } + + /* default block logging? */ + if (!isset($config['syslog']['nologdefaultblock'])) + $log = "log"; + else + $log = ""; + + $ipfrules .= << persist +block quick from to any label "Block snort2c hosts" +block quick from any to label "Block snort2c hosts" + +# loopback +anchor "loopback" +pass in quick on \$loopback all label "pass loopback" +pass out quick on \$loopback all label "pass loopback" + +# package manager early specific hook +anchor "packageearly" + + +# carp +anchor "carp" + +EOD; + +if($wanip) + $ipfrules .= << "any") + $extaddr = $rule['external-address'] . "/32"; + else + $extaddr = $rule['external-address']; + else + $extaddr = get_current_wan_address($rule['interface']); + + if (!$rule['interface'] || ($rule['interface'] == "wan")) + $natif = $wanif; + else if($rule['interface'] == "\$pptp") + $natif = "pptp"; + else if($rule['interface'] == "\$pppoe") + $natif = "pppoe"; + else + $natif = $config['interfaces'][$rule['interface']]['if']; + + $lanif = $lancfg['if']; + + /* + * Expand aliases + * XXX: may want to integrate this into pf macros + */ + if(alias_expand($target)) + $target = alias_expand($target); + if(alias_expand($extaddr)) + $extaddr = alias_expand($extaddr); + + if(!isset($config['system']['disablenatreflection'])) { + + /* if list */ + $iflist = array("lan" => "LAN"); + for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) + $iflist['opt' . $i] = "opt{$i}"; + + foreach ($iflist as $ifent => $ifname) { + + /* do not process interfaces with gateways*/ + if($config['interfaces'][$ifname]['gateway'] <> "") + continue; + + /* do not process interfaces that will end up with gateways */ + if($config['interfaces'][$ifname]['ipaddr'] == "dhcp" or + $config['interfaces'][$ifname]['ipaddr'] == "bigpond" or + $config['interfaces'][$ifname]['ipaddr'] == "pppoe" or + $config['interfaces'][$ifname]['ipaddr'] == "pptp") + + continue; + + $ifname_real = convert_friendly_interface_to_real_interface_name($ifname); + + if($extport[1]) + $range_end = ($extport[1]); + else + $range_end = ($extport[0]); + + $range_end++; + + if($rule['local-port']) + $lrange_start = $rule['local-port']; + + if($range_end - $extport[0] > 500) { + $range_end = $extport[0]+1; + log_error("Not installing nat reflection rules for a port range > 500"); + } else { + /* only install reflection rules for < 19991 items */ + if($starting_localhost_port < 19991) { + $loc_pt = $lrange_start; + for($x=$extport[0]; $x<$range_end; $x++) { + + $starting_localhost_port++; + $ifname_real = convert_friendly_interface_to_friendly_descr(strtolower($ifname)); + + switch($rule['protocol']) { + case "tcp/udp": + $protocol = "{ tcp udp }"; + $ipfrules .= "pass in quick on \${$ifname_real} inet proto tcp from any to \$loopback port {$starting_localhost_port} keep state label \"NAT REFLECT: Allow traffic to localhost\"\n"; + $starting_localhost_port++; + $ipfrules .= "pass in quick on \${$ifname_real} inet proto udp from any to \$loopback port {$starting_localhost_port} keep state label \"NAT REFLECT: Allow traffic to localhost\"\n"; + break; + case "tcp": + case "udp": + $protocol = $rule['protocol']; + $ipfrules .= "pass in quick on \${$ifname_real} inet proto {$rule['protocol']} from any to \$loopback port {$starting_localhost_port} keep state label \"NAT REFLECT: Allow traffic to localhost\"\n"; + break; + default: + break; + } + $loc_pt++; + if($starting_localhost_port > 19990) { + log_error("Not installing nat reflection rules. Maximum 1,000 reached."); + $x = $range_end+1; + } + } + } + } + } + + } + } + } + + $ipfrules .= << $oc) { + if ($config[interfaces][$on][ipaddr] == "dhcp" ) { + $friendly_on = filter_get_opt_interface_descr($on); + $ipfrules .= << "") + if(isset($oc['enable'])) + $ipfrules .= "block in $log quick on \$wan from {$oc['sa']}/{$oc['sn']} to any label \"interface spoof check\"\n"; + } + + /* allow PPTP traffic if PPTP client is enabled on WAN */ + if ($wancfg['ipaddr'] == "pptp") { + $ipfrules .= << "wan" and $config['interfaces']['wan']['bridge'] <> "lan") + $ipfrules .= "block in $log quick on \$wan proto udp from any port = 67 to {$lansa_sn_combo} port = 68 label \"block dhcp client out wan\"\n"; + + $ipfrules .= << $oc) { + $isbridged = false; + foreach ($optcfg as $on2 => $oc2) { + if ($oc2['bridge'] && $oc2['bridge'] == $on) { + $isbridged = true; + break; + } + } + if ($oc['ip'] && !(($oc['bridge'] || $isbridged) && isset($config['bridge']['filteringbridge']))) + $ipfrules .= filter_rules_spoofcheck_generate($on, $oc['if'], $oc['sa'], $oc['sn'], $log); + } + + $ipfrules .= "\nanchor \"spoofing\"\n"; + + /* block private networks on WAN? */ + if (isset($config['interfaces']['wan']['blockpriv'])) { + if($wanbridge == false) { + $ipfrules .= << +block in quick from to any label "virusprot overload table" + +EODF; + + /* block bogon networks on WAN */ + /* http://www.cymru.com/Documents/bogon-bn-nonagg.txt */ + /* file is automatically in cron every 3000 minutes */ + if (isset($config['interfaces']['wan']['blockbogons'])) { + $ipfrules .= << persist file "/etc/bogons" +block in $log quick on \$wan from to any label "block bogon networks from wan" + +EOD; + } + +if (!isset($config['shaper']['enable']) && !is_array($config['shaper']['queue']) and $config['system']['shapertype'] <> "m0n0") { + + $ipfrules .= << $oc) { + $ipfrules .= << "") + $nif = $config['pptp']['n_pptp_units']; + /* + * now that PPTP server are user rules, detect + * that user is setting the pptp server rule + * and setup for all netgraph interfaces + */ + $rule_arr[] = generate_user_filter_rule_arr($rule, 0); + } else if($rule['interface'] == "pppoe") { + if(!$config['pppoe']['mode'] == "server") + continue; + $n_pppoe_units = $g['n_pppoe_units']; + if($config['pppoe']['n_pppoe_units'] <> "") + $nif = $config['pppoe']['n_pppoe_units']; + /* + * now that pppoe server are user rules, detect + * that user is setting the pppoe server rule + * and setup for all netgraph interfaces + */ + $rule_arr[] = generate_user_filter_rule_arr($rule, 0); + } else { + $rule_arr[] = generate_user_filter_rule_arr($rule, 0); + } + } + } + + $ipfrules .= "\n# User-defined aliases follow\n"; + /* tables for aliases */ + foreach($table_cache as $table) { + $ipfrules .= $table; + } + + /* Shaper rules */ + if (isset($config['shaper']['enable']) && is_array($config['shaper']['queue']) && isset($config['filter']['rule']) and $config['system']['shapertype'] <> "m0n0") { + + $ipfrules .= "\n# Anchors for rules that might be matched by queues\n"; + + /* This is ugly, but we generate one anchor per queue */ + foreach ($config['shaper']['queue'] as $queue) { + update_filter_reload_status("Creating filter anchor for {$queue['name']} ..."); + /* Add anchor to rules */ + $ipfrules .= "anchor {$queue['name']} tagged {$queue['name']}\n"; + $ipfrules .= "load anchor {$queue['name']} from \"{$g['tmp_path']}/{$queue['name']}.rules\"\n"; + /* Create rules for anchors */ + $fd = fopen("{$g['tmp_path']}/{$queue['name']}.rules", "w"); + /* aliases don't recurse to anchors */ + $line = filter_generate_aliases(); + fwrite($fd, $line); + foreach($rule_arr as $rule) { + if($rule['ackq'] != "") + $line = "{$rule['rule']} queue ({$queue['name']}, {$rule['ackq']}) {$rule['descr']}\n"; + else + $line = "{$rule['rule']} queue {$queue['name']} {$rule['descr']}\n"; + fwrite($fd, $line); + } + fclose($fd); + } + } + + $ipfrules .= "\n# User-defined rules follow\n"; + /* Generate user rule lines */ + foreach($rule_arr as $rule) { + $line = ""; + if (!isset($rule['disabled'])) { + $line = $rule['rule']; + if($line <> "") { + /* Add default queue if we're using the shaper */ + if (isset($config['shaper']['enable']) && is_array($config['shaper']['queue']) and $config['system']['shapertype'] <> "m0n0") { + $defq = find_default_queue($rule['interface']); + $ackq = $rule['ackq']; + if (($defq != "") and ($ackq != "")) + $line .= " queue ({$defq}, {$ackq}) "; + } + /* label */ + $line .= " {$rule['descr']}"; + } + } + $line .= "\n"; + $ipfrules .= $line; + } + } + + update_filter_reload_status("Creating carp rules..."); + + $ipfrules .= "\n# VPN Rules\n"; + $lan_ip = $config['interfaces']['lan']['ipaddr']; + $lan_subnet = $config['interfaces']['lan']['subnet']; + $wanif = get_real_wan_interface(); + $wan_ip = find_interface_ip($wanif); + if($wan_ip) { + $internal_subnet = gen_subnet($lan_ip, $lan_subnet) . "/" . $config['interfaces']['lan']['subnet']; + /* Is IP Compression enabled? */ + if(isset($config['ipsec']['ipcomp'])) + exec("/sbin/sysctl net.inet.ipcomp.ipcomp_enable=1"); + else + exec("/sbin/sysctl net.inet.ipcomp.ipcomp_enable=0"); + + /* build an interface collection */ + $ifdescrs = array ("wan"); + for ($j = 1; isset ($config['interfaces']['opt' . $j]); $j++) { + if(isset($config['interfaces']['opt' . $j]['enable'])) + $ifdescrs['opt' . $j] = filter_get_opt_interface_descr("opt" . $j); + } + + if(is_array($config['ipsec']['tunnel']) && isset($config['ipsec']['enable'])) { + foreach ($config['ipsec']['tunnel'] as $tunnel) { + if(isset($tunnel['disabled'])) + continue; + update_filter_reload_status("Creating IPSEC tunnel items {$tunnel['descr']}..."); + /* if tunnel is disabled, lets skip to next item */ + $ipsec_ips = array(get_current_wan_address($tunnel['interface'])); + /* is this a dynamic dns hostname? */ + $remote_gateway = gethostbyname($tunnel['remote-gateway']); + if($remote_gateway == "") + $remote_gateway = $tunnel['remote-gateway']; + /* do not add items with blank remote_gateway */ + if(!$remote_gateway) { + $ipfrules .= "# ERROR! Remote gateway not found on {$tunnel['remote-gateway']}\n"; + continue; + } + $local_subnet = return_vpn_subnet($tunnel['local-subnet']); + foreach($ifdescrs as $iface) { + foreach($ipsec_ips as $interface_ip) { + if($iface == "wan") + $interface_ip = find_interface_ip(get_real_wan_interface()); + else + $interface_ip = find_interface_ip(convert_friendly_interface_to_real_interface_name($iface)); + if(!$interface_ip) + continue; + if(!$remote_gateway) + continue; + $ipfrules .= "pass out quick on \${$iface} proto udp from any to {$remote_gateway} port = 500 keep state label \"IPSEC: {$tunnel['descr']} - outbound isakmp\"\n"; + $ipfrules .= "pass in quick on \${$iface} proto udp from {$remote_gateway} to any port = 500 keep state label \"IPSEC: {$tunnel['descr']} - inbound isakmp\"\n"; + if ($tunnel['p2']['protocol'] == 'esp') { + $ipfrules .= "pass out quick on \${$iface} proto esp from any to {$remote_gateway} keep state label \"IPSEC: {$tunnel['descr']} - outbound esp proto\"\n"; + $ipfrules .= "pass in quick on \${$iface} proto esp from {$remote_gateway} to any keep state label \"IPSEC: {$tunnel['descr']} - inbound esp proto\"\n"; + } + if ($tunnel['p2']['protocol'] == 'ah') { + $ipfrules .= "pass out quick on \${$iface} proto ah from any to {$remote_gateway} keep state label \"IPSEC: {$tunnel['descr']} - outbound ah proto\"\n"; + $ipfrules .= "pass in quick on \${$iface} proto ah from {$remote_gateway} to any keep state label \"IPSEC: {$tunnel['descr']} - inbound ah proto\"\n"; + } + } + } + } + } + + /* is mobile ipsec enabled? if so lets allow some pretty + * loose rules to allow mobile clients to phone in. + */ + $ipseccfg = $config['ipsec']; + if (isset($ipseccfg['mobileclients']['enable'])) { + foreach($ifdescrs as $iface) { + $ipfrules .= "pass in quick on \${$iface} proto udp from any to any port = 500 keep state label \"IPSEC: Mobile - inbound isakmp\"\n"; + $ipfrules .= "pass in quick on \${$iface} proto esp from any to any keep state label \"IPSEC: Mobile - inbound esp proto\"\n"; + $ipfrules .= "pass in quick on \${$iface} proto ah from any to any keep state label \"IPSEC: Mobile - inbound ah proto\"\n"; + } + } + } + $ipfrules .= << 49000 flags S/SA keep state label "FTP PROXY: PASV mode data connection" + +EOD; + + if(!isset($config['system']['disableftpproxy'])) { + + $ipfrules .= "# enable ftp-proxy\n"; + + $optcfg = array(); + generate_optcfg_array($optcfg); + $ftp_counter = "8022"; + foreach($optcfg as $oc) { + if(!isset($oc['gateway']) && $oc['if'] <> "") { + $ipfrules .= "pass in quick on " . $oc['if'] . " inet proto tcp from any to \$loopback port {$ftp_counter} keep state label \"FTP PROXY: Allow traffic to localhost\"\n"; + $ipfrules .= "pass in quick on " . $oc['if'] . " inet proto tcp from any to \$loopback port 21 keep state label \"FTP PROXY: Allow traffic to localhost\"\n"; + } + $ftp_counter++; + } + + if(isset($config['system']['rfc959workaround'])) { + $ipfrules .= << 49000 flags S/SA keep state label "FTP PROXY: RFC959 violation workaround" + +EODEOD; + + $optcfg = array(); + generate_optcfg_array($optcfg); + foreach($optcfg as $oc) { + if($oc['gateway'] <> "") + $ipfrules .= "pass in quick on {$oc['if']} inet proto tcp from any to ({$oc['if']}) port > 49000 flags S/SA keep state label \"FTP PROXY: RFC959 violation workaround\" \n"; + } + } + } + + $ipfrules .= << $ifname) { + /* do not work with tun interfaces */ + if(stristr(filter_translate_type_to_real_interface($ifname), "tun") == true) continue; + $int = filter_translate_type_to_real_interface($ifname); + $rules .= "set loginterface {$int}\n"; + } + return $rules; +} + +function create_firewall_outgoing_rules_to_itself() { + global $config, $g; + + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "create_firewall_outgoing_rules_to_itself() being called $mt\n"; + } + + $i = 0; + $rule .= "# pass traffic from firewall -> out\n"; + $rule .= "anchor \"firewallout\"\n"; + $ifdescrs = array('wan', 'lan'); + for ($j = 1; isset($config['interfaces']['opt' . $j]); $j++) + $ifdescrs['opt' . $j] = "opt" . $j; + + /* go through primary and optional interfaces */ + foreach ($ifdescrs as $ifdescr => $ifname) { + $return_gateway = $config['interfaces'][$ifname]['gateway']; + $ints = array(); + $int = filter_translate_type_to_real_interface($ifname); + /* if the interface is pppoe, set the ng0 interface */ + update_filter_reload_status("Creating IPSEC tunnel items {$tunnel['descr']}..."); + $ip = find_interface_ip($int); + if ($config['interfaces'][$ifname]['ipaddr'] == "pppoe") + $int = " { " . filter_translate_type_to_real_interface($ifname) . " ng0 } "; + if (isset($config['shaper']['enable']) && is_array($config['shaper']['queue']) and $config['system']['shapertype'] <> "m0n0") { + $ackq = get_ack_queue($ifname); + $defq = find_default_queue($ifname); + /* Handle all tagged packets */ + foreach ($config['shaper']['queue'] as $queue) { + if(!filter_is_queue_being_used_on_interface($queue['name'], $ifname, 'out')) + continue; + if ($ackq == "" || $defq == "") { + /* Shaper must not be enabled on this interface */ + $q = ""; + } else { + $q = "queue ({$queue['name']}, {$ackq})"; + } + $rule .="pass out quick on {$int} all keep state tagged {$queue['name']} {$q} label \"let out anything from firewall host itself\"\n"; + } + /* Handle untagged packets */ + if ($ackq == "" || $defq == "") { + /* Shaper must not be enabled on this interface */ + $q = ""; + } else { + $q = "queue ({$defq}, {$ackq})"; + } + $rule .="pass out quick on {$int} all keep state {$q} label \"let out anything from firewall host itself\"\n"; + } else { + /* first add a rule for the real interface, then for ng0 */ + $rule .="pass out quick on {$int} all keep state label \"let out anything from firewall host itself\"\n"; + } + } + + update_filter_reload_status("Setting up bridging items"); + /* is bridging turned on? */ + for($x=0; $x<10; $x++) { + if(does_interface_exist("bridge{$x}") == true) + $rule .="pass out quick on bridge{$x} all keep state label \"let out anything from firewall host itself\"\n"; + } + + update_filter_reload_status("Setting up pptp items"); + if($config['pptpd']['mode'] == "server") + $rule .="pass out quick on \$pptp all keep state label \"let out anything from firewall host itself pptp\"\n"; + + update_filter_reload_status("Setting up pppoe items"); + if($config['pppoe']['mode'] == "server") + $rule .="pass out quick on \$pppoe all keep state label \"let out anything from firewall host itself pppoe\"\n"; + + update_filter_reload_status("Setting up gif tunnels"); + /* setup outgoing gif tunnels */ + $number_of_gifs = find_last_gif_device(); + $number_of_gifs++; + for($x=0; $x<$number_of_gifs; $x++) { + if(does_interface_exist("gif{$x}") == true) + $rule .="pass out quick on gif{$x} all keep state label \"let out anything from firewall host itself ipsec gif\"\n"; + } + + update_filter_reload_status("Setting up tun interfaces (openvpn)"); + /* openvpn tun interfaces. check for 100. */ + for($x=0; $x<100; $x++) { + if(does_interface_exist("tun{$x}") == true) { + $rule .="pass out quick on tun{$x} all keep state label \"let out anything from firewall host itself openvpn\"\n"; + $friendlytunif = convert_real_interface_to_friendly_interface_name("tun{$x}"); + /* If the interface has a gateway we do not add a pass in rule. */ + /* Some people use a TUN tunnel with public IP as a Multiwan interface */ + if(interface_has_gateway("tun{$x}")) { + $rule .= "# Not adding default pass in rule for interface $friendlytunif - tun{$x} with a gateway!"; + } else { + $rule .="pass in quick on tun{$x} all keep state label \"let out anything from firewall host itself openvpn\"\n"; + } + } + } + for($x=0; $x<100; $x++) { + if(does_interface_exist("tap{$x}") == true) { + $rule .="pass out quick on tap{$x} all keep state label \"let out anything from firewall host itself openvpn\"\n"; + $friendlytapif = convert_real_interface_to_friendly_interface_name("tap{$x}"); + /* If the interface has a gateway we do not add a pass in rule. */ + /* Some people use a TAP tunnel with public IP as a Multiwan interface */ + if(interface_has_gateway("tap{$x}")) { + $rule .= "# Not adding default pass in rule for interface $friendlytapif - tap{$x} with a gateway!"; + } else { + $rule .="pass in quick on tap{$x} all keep state label \"let out anything from firewall host itself openvpn\"\n"; + } + } + } + + /* permit internal ipsec outbound traffic */ + $rule .="pass out quick on \$enc0 keep state label \"IPSEC internal host to host\""; + + return $rule; +} + +function process_carp_nat_rules() { + global $g, $config; + + update_filter_reload_status("Creating CARP NAT rules"); + + $wan_interface = get_real_wan_interface(); + + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "process_carp_nat_rules() being called $mt\n"; + } + $lines = ""; + if($config['installedpackages']['carp']['config'] != "") + foreach($config['installedpackages']['carp']['config'] as $carp) { + $ip = $carp['ipaddress']; + if($ip <> "any") { + $ipnet = "any"; + } else { + $int = find_ip_interface($ip); + $carp_int = find_carp_interface($ip); + } + if($int != false and $int != $wan_interface) { + $ipnet = convert_ip_to_network_format($ip, $carp['netmask']); + if($int) + $lines .= "nat on {$int} inet from {$ipnet} to any -> ({$carp_int}) \n"; + } + } + return $lines; +} + +function process_carp_rules() { + global $g, $config; + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "process_carp_rules() being called $mt\n"; + } + $lines = ""; + /* return if there are no carp configured items */ + if($config['installedpackages']['carpsettings']['config'] <> "" or + $config['virtualip']['vip'] <> "") { + $lines .= "pass quick proto carp\n"; + $lines .= "pass quick proto pfsync"; + } + return $lines; +} + +function remove_special_characters($string) { + $match_array = ""; + preg_match_all("/[a-zA-Z0-9\_\-]+/",$string,$match_array); + $string = ""; + foreach($match_array[0] as $ma) { + if($string <> "") + $string .= " "; + $string .= $ma; + } + return $string; +} + +function carp_sync_xml($url, $password, $sections, $port = 80, $method = 'pfsense.restore_config_section') { + global $config, $g; + + if($g['booting']) + return; + + update_filter_reload_status("Syncing CARP data to {$url}"); + + /* make a copy of config */ + $config_copy = $config; + + /* strip out nosync items */ + for ($x = 0; $x < count($config_copy['nat']['advancedoutbound']['rule']); $x++) { + if (isset ($config_copy['nat']['advancedoutbound']['rule'][$x]['nosync'])) + unset ($config_copy['nat']['advancedoutbound']['rule'][$x]); + $config_copy['nat']['advancedoutbound']['rule'][$x]['descr'] = remove_special_characters($config_copy['nat']['advancedoutbound']['rule'][$x]['descr']); + } + for ($x = 0; $x < count($config_copy['nat']['rule']); $x++) { + if (isset ($config_copy['nat']['rule'][$x]['nosync'])) + unset ($config_copy['nat']['rule'][$x]); + $config_copy['nat']['rule'][$x]['descr'] = remove_special_characters($config_copy['nat']['rule'][$x]['descr']); + } + for ($x = 0; $x < count($config_copy['filter']['rule']); $x++) { + if (isset ($config_copy['filter']['rule'][$x]['nosync'])) + unset ($config_copy['filter']['rule'][$x]); + $config_copy['filter']['rule'][$x]['descr'] = remove_special_characters($config_copy['filter']['rule'][$x]['descr']); + } + for ($x = 0; $x < count($config_copy['aliases']['alias']); $x++) { + if (isset ($config_copy['aliases']['alias'][$x]['nosync'])) + unset ($config_copy['aliases']['alias'][$x]); + $config_copy['aliases']['alias'][$x]['descr'] = remove_special_characters($config_copy['aliases']['alias'][$x]['descr']); + } + for ($x = 0; $x < count($config_copy['dnsmasq']['hosts']); $x++) { + if (isset ($config_copy['dnsmasq']['hosts'][$x]['nosync'])) + unset ($config_copy['dnsmasq']['hosts'][$x]); + $config_copy['dnsmasq']['hosts'][$x]['descr'] = remove_special_characters($config_copy['dnsmasq']['hosts'][$x]['descr']); + } + for ($x = 0; $x < count($config_copy['virtualip']['vip']); $x++) { + if (isset ($config_copy['virtualip']['vip'][$x]['nosync']) or $config_copy['virtualip']['vip'][$x]['mode'] == "proxyarp") + unset ($config_copy['virtualip']['vip'][$x]); + $config_copy['virtualip']['vip'][$x]['descr'] = remove_special_characters($config_copy['virtualip']['vip'][$x]['descr']); + } + for ($x = 0; $x < count($config_copy['ipsec']['tunnel']); $x++) { + if (isset ($config_copy['ipsec']['tunnel'][$x]['nosync'])) + unset ($config_copy['ipsec']['tunnel'][$x]); + $config_copy['ipsec']['tunnel'][$x]['descr'] = remove_special_characters($config_copy['ipsec']['tunnel'][$x]['descr']); + } + + foreach($sections as $section) { + /* we can't use array_intersect_key() + due to the vip 'special case' */ + if($section != 'virtualip') { + $xml[$section] = $config_copy[$section]; + } else { + $xml[$section] = backup_vip_config_section(); + } + } + + $params = array( + XML_RPC_encode($password), + XML_RPC_encode($xml) + ); + + log_error("Beginning XMLRPC sync to {$url}:{$port}."); + $msg = new XML_RPC_Message($method, $params); + $cli = new XML_RPC_Client('/xmlrpc.php', $url, $port); + $cli->setCredentials('admin', $password); + if($g['debug']) $cli->setDebug(1); + /* send our XMLRPC message and timeout after 240 seconds */ + $resp = $cli->send($msg, "240"); + if(!$resp) { + $error = "A communications error occured while attempting XMLRPC sync with username admin {$url}:{$port}."; + log_error($error); + file_notice("sync_settings", $error, "Settings Sync", ""); + } elseif($resp->faultCode()) { + $error = "An error code was received while attempting XMLRPC sync with username admin {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); + log_error($error); + file_notice("sync_settings", $error, "Settings Sync", ""); + } else { + log_error("XMLRPC sync successfully completed with {$url}:{$port}."); + } +} + +function carp_sync_client() { + + global $config, $g; + + update_filter_reload_status("Building CARP sync information"); + + if($g['booting']) + return; + + if(is_array($config['installedpackages']['carpsettings']['config'])) { + foreach($config['installedpackages']['carpsettings']['config'] as $carp) { + if($carp['synchronizetoip'] != "" ) { + /* + * XXX: The way we're finding the port right now is really suboptimal - + * we can't assume that the other machine is setup identically. + */ + if($config['system']['webgui']['protocol'] != "") { + $synchronizetoip = $config['system']['webgui']['protocol']; + $synchronizetoip .= "://"; + } + $port = $config['system']['webgui']['port']; + /* if port is empty lets rely on the protocol selection */ + if($port == "") { + if($config['system']['webgui']['protocol'] == "http") { + $port = "80"; + } else { + $port = "443"; + } + } + $synchronizetoip .= $carp['synchronizetoip']; + if($carp['synchronizerules'] != "" and is_array($config['filter'])) { + $sections[] = 'filter'; + } + if($carp['synchronizenat'] != "" and is_array($config['nat'])) { + $sections[] = 'nat'; + } + if($carp['synchronizealiases'] != "" and is_array($config['aliases'])) { + $sections[] = 'aliases'; + } + if($carp['synchronizedhcpd'] != "" and is_array($config['dhcpd'])) { + $sections[] = 'dhcpd'; + } + if($carp['synchronizewol'] != "" and is_array($config['wol'])) { + $sections[] = 'wol'; + } + if($carp['synchronizetrafficshaper'] != "" and is_array($config['shaper'])) { + $sections[] = 'shaper'; + } + if($carp['synchronizestaticroutes'] != "" and is_array($config['staticroutes'])) { + $sections[] = 'staticroutes'; + } + if($carp['synchronizevirtualip'] != "" and is_array($config['virtualip'])) { + $sections[] = 'virtualip'; + } + if($carp['synchronizelb'] != "" and is_array($config['load_balancer'])) { + $sections[] = 'load_balancer'; + } + if($carp['synchronizeipsec'] != "" and is_array($config['ipsec'])) { + $sections[] = 'ipsec'; + } + if($carp['synchronizednsforwarder'] != "" and is_array($config['dnsmasq'])) { + $sections[] = 'dnsmasq'; + } + if($carp['synchronizeschedules'] != "" and is_array($config['schedules'])) { + $sections[] = 'schedules'; + } + if(count($sections) > 0) { + update_filter_reload_status("Signaling CARP reload signal..."); + carp_sync_xml($synchronizetoip, $carp['password'], $sections, $port); + $cli = new XML_RPC_Client('/xmlrpc.php', $synchronizetoip, $port); + $msg = new XML_RPC_Message('pfsense.filter_configure', array(new XML_RPC_Value($carp['password'], 'string'))); + $cli->setCredentials('admin', $carp['password']); + $cli->send($msg, "900"); + /* signal a carp reload */ + $msg = new XML_RPC_Message('pfsense.interfaces_carp_configure'); + $cli->send($msg, "900"); + } + } + } + } + +} + +function return_vpn_subnet($adr) { + global $config; + if(isset($config['system']['developerspew'])) { + $mt = microtime(); + echo "return_vpn_subnet() being called $mt\n"; + } + + if ($adr['address']) { + list($padr, $pmask) = explode("/", $adr['address']); + if (is_null($pmask)) + return "{$padr}/32"; + return "{$padr}/{$pmask}"; + } + + /* XXX: do not return wan, lan, etc */ + if(strstr($adr['network'], "wan") or strstr($adr['network'], "lan") or strstr($adr['network'], "opt")) + return convert_ip_to_network_format($config['interfaces'][$adr['network']]['ipaddr'], + $config['interfaces'][$adr['network']]['subnet']); + + /* fallback - error */ + return " # error - {$adr['network']} "; + +} + +?> diff --git a/config/igmpproxy/firewall_rules_edit.tmp b/config/igmpproxy/firewall_rules_edit.tmp new file mode 100755 index 00000000..dfb40bc8 --- /dev/null +++ b/config/igmpproxy/firewall_rules_edit.tmp @@ -0,0 +1,879 @@ +. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + +require("guiconfig.inc"); + +$specialsrcdst = explode(" ", "any wanip lanip lan pptp pppoe"); + +if (!is_array($config['filter']['rule'])) { + $config['filter']['rule'] = array(); +} +filter_rules_sort(); +$a_filter = &$config['filter']['rule']; + +$id = $_GET['id']; +if (is_numeric($_POST['id'])) + $id = $_POST['id']; + +$after = $_GET['after']; + +if (isset($_POST['after'])) + $after = $_POST['after']; + +if (isset($_GET['dup'])) { + $id = $_GET['dup']; + $after = $_GET['dup']; +} + +if (isset($id) && $a_filter[$id]) { + $pconfig['interface'] = $a_filter[$id]['interface']; + + if (!isset($a_filter[$id]['type'])) + $pconfig['type'] = "pass"; + else + $pconfig['type'] = $a_filter[$id]['type']; + + if (isset($a_filter[$id]['protocol'])) + $pconfig['proto'] = $a_filter[$id]['protocol']; + else + $pconfig['proto'] = "any"; + + if ($a_filter[$id]['protocol'] == "icmp") + $pconfig['icmptype'] = $a_filter[$id]['icmptype']; + + address_to_pconfig($a_filter[$id]['source'], $pconfig['src'], + $pconfig['srcmask'], $pconfig['srcnot'], + $pconfig['srcbeginport'], $pconfig['srcendport']); + + if($a_filter[$id]['os'] <> "") + $pconfig['os'] = $a_filter[$id]['os']; + + address_to_pconfig($a_filter[$id]['destination'], $pconfig['dst'], + $pconfig['dstmask'], $pconfig['dstnot'], + $pconfig['dstbeginport'], $pconfig['dstendport']); + + $pconfig['disabled'] = isset($a_filter[$id]['disabled']); + $pconfig['log'] = isset($a_filter[$id]['log']); + $pconfig['descr'] = $a_filter[$id]['descr']; + + /* advanced */ + if (isset($a_filter[$id]['allowopts'])) + $pconfig['allowopts'] = true; + $pconfig['max-src-nodes'] = $a_filter[$id]['max-src-nodes']; + $pconfig['max-src-states'] = $a_filter[$id]['max-src-states']; + $pconfig['statetype'] = $a_filter[$id]['statetype']; + $pconfig['statetimeout'] = $a_filter[$id]['statetimeout']; + + $pconfig['nosync'] = isset($a_filter[$id]['nosync']); + + /* advanced - new connection per second banning*/ + $pconfig['max-src-conn-rate'] = $a_filter[$id]['max-src-conn-rate']; + $pconfig['max-src-conn-rates'] = $a_filter[$id]['max-src-conn-rates']; + + /* Multi-WAN next-hop support */ + $pconfig['gateway'] = $a_filter[$id]['gateway']; + + //schedule support + $pconfig['sched'] = $a_filter[$id]['sched']; + +} else { + /* defaults */ + if ($_GET['if']) + $pconfig['interface'] = $_GET['if']; + $pconfig['type'] = "pass"; + $pconfig['src'] = "any"; + $pconfig['dst'] = "any"; +} + +if (isset($_GET['dup'])) + unset($id); + +if ($_POST) { + + if ($_POST['type'] == "reject" && $_POST['proto'] <> "tcp") + $input_errors[] = "Reject type rules only works when the protocol is set to TCP."; + + if (($_POST['proto'] != "tcp") && ($_POST['proto'] != "udp") && ($_POST['proto'] != "tcp/udp")) { + $_POST['srcbeginport'] = 0; + $_POST['srcendport'] = 0; + $_POST['dstbeginport'] = 0; + $_POST['dstendport'] = 0; + } else { + + if ($_POST['srcbeginport_cust'] && !$_POST['srcbeginport']) + $_POST['srcbeginport'] = $_POST['srcbeginport_cust']; + if ($_POST['srcendport_cust'] && !$_POST['srcendport']) + $_POST['srcendport'] = $_POST['srcendport_cust']; + + if ($_POST['srcbeginport'] == "any") { + $_POST['srcbeginport'] = 0; + $_POST['srcendport'] = 0; + } else { + if (!$_POST['srcendport']) + $_POST['srcendport'] = $_POST['srcbeginport']; + } + if ($_POST['srcendport'] == "any") + $_POST['srcendport'] = $_POST['srcbeginport']; + + if ($_POST['dstbeginport_cust'] && !$_POST['dstbeginport']) + $_POST['dstbeginport'] = $_POST['dstbeginport_cust']; + if ($_POST['dstendport_cust'] && !$_POST['dstendport']) + $_POST['dstendport'] = $_POST['dstendport_cust']; + + if ($_POST['dstbeginport'] == "any") { + $_POST['dstbeginport'] = 0; + $_POST['dstendport'] = 0; + } else { + if (!$_POST['dstendport']) + $_POST['dstendport'] = $_POST['dstbeginport']; + } + if ($_POST['dstendport'] == "any") + $_POST['dstendport'] = $_POST['dstbeginport']; + } + + if (is_specialnet($_POST['srctype'])) { + $_POST['src'] = $_POST['srctype']; + $_POST['srcmask'] = 0; + } else if ($_POST['srctype'] == "single") { + $_POST['srcmask'] = 32; + } + if (is_specialnet($_POST['dsttype'])) { + $_POST['dst'] = $_POST['dsttype']; + $_POST['dstmask'] = 0; + } else if ($_POST['dsttype'] == "single") { + $_POST['dstmask'] = 32; + } + + unset($input_errors); + $pconfig = $_POST; + + /* input validation */ + $reqdfields = explode(" ", "type interface proto src dst"); + $reqdfieldsn = explode(",", "Type,Interface,Protocol,Source,Destination"); + + + if($_POST['statetype'] == "modulate state" or $_POST['statetype'] == "synproxy state") { + if( $_POST['proto'] != "tcp" ) + $input_errors[] = "{$_POST['statetype']} is only valid with protocol tcp."; + if(($_POST['statetype'] == "synproxy state") && ($_POST['gateway'] != "")) + $input_errors[] = "{$_POST['statetype']} is only valid if the gateway is set to 'default'."; + } + + + if (!(is_specialnet($_POST['srctype']) || ($_POST['srctype'] == "single"))) { + $reqdfields[] = "srcmask"; + $reqdfieldsn[] = "Source bit count"; + } + if (!(is_specialnet($_POST['dsttype']) || ($_POST['dsttype'] == "single"))) { + $reqdfields[] = "dstmask"; + $reqdfieldsn[] = "Destination bit count"; + } + + do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); + + if (!$_POST['srcbeginport']) { + $_POST['srcbeginport'] = 0; + $_POST['srcendport'] = 0; + } + if (!$_POST['dstbeginport']) { + $_POST['dstbeginport'] = 0; + $_POST['dstendport'] = 0; + } + + if (($_POST['srcbeginport'] && !alias_expand($_POST['srcbeginport']) && !is_port($_POST['srcbeginport']))) { + $input_errors[] = "The start source port must be an alias or integer between 1 and 65535."; + } + if (($_POST['srcendport'] && !alias_expand($_POST['srcendport']) && !is_port($_POST['srcendport']))) { + $input_errors[] = "The end source port must be an alias or integer between 1 and 65535."; + } + if (($_POST['dstbeginport'] && !alias_expand($_POST['dstbeginport']) && !is_port($_POST['dstbeginport']))) { + $input_errors[] = "The start destination port must be an alias or integer between 1 and 65535."; + } + if (($_POST['dstendport'] && !alias_expand($_POST['dstbeginport']) && !is_port($_POST['dstendport']))) { + $input_errors[] = "The end destination port must be an alias or integer between 1 and 65535."; + } + + /* if user enters an alias and selects "network" then disallow. */ + if($_POST['srctype'] == "network") { + if(is_alias($_POST['src'])) + $input_errors[] = "You must specify single host or alias for alias entries."; + } + if($_POST['dsttype'] == "network") { + if(is_alias($_POST['dst'])) + $input_errors[] = "You must specify single host or alias for alias entries."; + } + + if (!is_specialnet($_POST['srctype'])) { + if (($_POST['src'] && !is_ipaddroranyalias($_POST['src']))) { + $input_errors[] = "A valid source IP address or alias must be specified."; + } + if (($_POST['srcmask'] && !is_numericint($_POST['srcmask']))) { + $input_errors[] = "A valid source bit count must be specified."; + } + } + if (!is_specialnet($_POST['dsttype'])) { + if (($_POST['dst'] && !is_ipaddroranyalias($_POST['dst']))) { + $input_errors[] = "A valid destination IP address or alias must be specified."; + } + if (($_POST['dstmask'] && !is_numericint($_POST['dstmask']))) { + $input_errors[] = "A valid destination bit count must be specified."; + } + } + + if ($_POST['srcbeginport'] > $_POST['srcendport']) { + /* swap */ + $tmp = $_POST['srcendport']; + $_POST['srcendport'] = $_POST['srcbeginport']; + $_POST['srcbeginport'] = $tmp; + } + if ($_POST['dstbeginport'] > $_POST['dstendport']) { + /* swap */ + $tmp = $_POST['dstendport']; + $_POST['dstendport'] = $_POST['dstbeginport']; + $_POST['dstbeginport'] = $tmp; + } + if ($_POST['os']) + if( $_POST['proto'] != "tcp" ) + $input_errors[] = "OS detection is only valid with protocol tcp."; + + if (!$input_errors) { + $filterent = array(); + $filterent['type'] = $_POST['type']; + $filterent['interface'] = $_POST['interface']; + + /* Advanced options */ + if ($_POST['allowopts'] == "yes") + $filterent['allowopts'] = true; + else + unset($filterent['allowopts']); + $filterent['max-src-nodes'] = $_POST['max-src-nodes']; + $filterent['max-src-states'] = $_POST['max-src-states']; + $filterent['statetimeout'] = $_POST['statetimeout']; + $filterent['statetype'] = $_POST['statetype']; + $filterent['os'] = $_POST['os']; + + /* Nosync directive - do not xmlrpc sync this item */ + if($_POST['nosync'] <> "") + $filterent['nosync'] = true; + else + unset($filterent['nosync']); + + /* unless both values are provided, unset the values - ticket #650 */ + if($_POST['max-src-conn-rate'] <> "" and $_POST['max-src-conn-rates'] <> "") { + $filterent['max-src-conn-rate'] = $_POST['max-src-conn-rate']; + $filterent['max-src-conn-rates'] = $_POST['max-src-conn-rates']; + } else { + unset($filterent['max-src-conn-rate']); + unset($filterent['max-src-conn-rates']); + } + + if ($_POST['proto'] != "any") + $filterent['protocol'] = $_POST['proto']; + else + unset($filterent['protocol']); + + if ($_POST['proto'] == "icmp" && $_POST['icmptype']) + $filterent['icmptype'] = $_POST['icmptype']; + else + unset($filterent['icmptype']); + + pconfig_to_address($filterent['source'], $_POST['src'], + $_POST['srcmask'], $_POST['srcnot'], + $_POST['srcbeginport'], $_POST['srcendport']); + + pconfig_to_address($filterent['destination'], $_POST['dst'], + $_POST['dstmask'], $_POST['dstnot'], + $_POST['dstbeginport'], $_POST['dstendport']); + + if ($_POST['disabled']) + $filterent['disabled'] = true; + else + unset($filterent['disabled']); + if ($_POST['log']) + $filterent['log'] = true; + else + unset($filterent['log']); + strncpy($filterent['descr'], $_POST['descr'], 52); + + if ($_POST['gateway'] != "") { + $filterent['gateway'] = $_POST['gateway']; + } + + if ($_POST['sched'] != "") { + $filterent['sched'] = $_POST['sched']; + } + + if (isset($id) && $a_filter[$id]) + $a_filter[$id] = $filterent; + else { + if (is_numeric($after)) + array_splice($a_filter, $after+1, 0, array($filterent)); + else + $a_filter[] = $filterent; + } + + write_config(); + touch($d_filterconfdirty_path); + + header("Location: firewall_rules.php?if=" . $_POST['interface']); + exit; + } +} + +$pgtitle = "Firewall: Rules: Edit"; +$closehead = false; + +$page_filename = "firewall_rules_edit.php"; +include("head.inc"); + +?> + + + + + +

+ + +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + "") + $schedules[] = $schedule['name']; + } + } + ?> + + + + + + "") + $gateways[]=$int['gateway']; + } +?> + + + + + + + + + + + + +
Action + +
+ + Choose what to do with packets that match the criteria specified below.
+ Hint: the difference between block and reject is that with reject, a packet (TCP RST or ICMP port unreachable for UDP) is returned to the sender, whereas with block the packet is dropped silently. In either case, the original packet is discarded. Reject only works when the protocol is set to either TCP or UDP (but not "TCP/UDP") below. + +
Disabled + > + Disable this rule
+ Set this option to disable this rule without removing it from the list. +
Interface + +
+ Choose on which interface packets must come in to match this rule. +
Protocol + +
+ Choose which IP protocol this rule should match.
Hint: in most cases, you should specify TCP  here. +
ICMP type + +
+ If you selected ICMP for the protocol above, you may specify an ICMP type here. +
Source + > + not +
+ Use this option to invert the sense of the match. +
+
+ + + + + + + + + +
Type:   + +
Address:   + / + +
+
+

+ - Show source port range +

+
Source OSOS Type:  + +
+ Note: this only works for TCP rules +
Destination + > + not +
+ Use this option to invert the sense of the match. +
+
+ + + + + + + + + +
Type:   + +
Address:   + + / + +
+ +
Destination port range + + + + + + + + + +
from:   + + +
to: + + +
+
+ + Specify the port or port range for the destination of the packet for this rule. +
+ Hint: you can leave the 'to' field empty if you only want to filter a single port + +
Log + > + Log packets that are handled by this rule +
+ Hint: the firewall has limited local log space. Don't turn on logging for everything. If you want to do a lot of logging, consider using a remote syslog server (see the Diagnostics: System logs: Settings page). +
Advanced Options +
+ - Show advanced options +
+ +
State Type +
+ - Show state +
+ +
No XMLRPC Sync + >
+ HINT: This prevents the rule from automatically syncing to other carp members. +
Schedule + +

Leave as 'none' to leave the rule enabled all the time.

+ NOTE: schedule logic can be a bit different. Click here for more information. +
Gateway + +

Leave as 'default' to use the system routing table. Or choose a gateway to utilize policy based routing.

+
Description + +
+ You may enter a description here for your reference (not parsed). +
  + + + + + +
+
+ + + + + + + diff --git a/config/igmpproxy/igmpproxy.inc b/config/igmpproxy/igmpproxy.inc new file mode 100644 index 00000000..4f167a54 --- /dev/null +++ b/config/igmpproxy/igmpproxy.inc @@ -0,0 +1,83 @@ + diff --git a/config/igmpproxy/igmpproxy.xml b/config/igmpproxy/igmpproxy.xml new file mode 100644 index 00000000..4b1e08fe --- /dev/null +++ b/config/igmpproxy/igmpproxy.xml @@ -0,0 +1,149 @@ + + + + + + + + igmpproxy + Services: IGMP proxy + /usr/local/pkg/igmpproxy.inc + + igmpproxy + igmpproxy.sh + igmpproxy + IGMP(multicast) proxy. + + + http://www.pfsense.org/packages/config/igmpproxy/igmpproxy.inc + /usr/local/pkg/ + 0755 + + + http://www.pfsense.org/packages/config/igmpproxy/firewall_rules_edit.tmp + /tmp/ + 0755 + + + http://www.pfsense.org/packages/config/igmpproxy/filter.tmp + /tmp/ + 0755 + + + http://www.pfsense.org/packages/config/igmpproxy/igmpproxy.tbz + /usr/local/pkg/ + 0755 + + An IGMP(multicast) proxy member has been deleted. + An IGMP(multicast) proxy member has been created/modified. + + + igmpname + Name + + + igmptype + Type + + + description + Description + + + + + igmpname + Interface + + interfaces_selection + + + description + Description + input + + + igmptype + Type + The upstream network interface is the outgoing interface which is + responsible for communicating to available multicast data sources. + There can only be one upstream interface. + Downstream network interfaces are the distribution interfaces to the + destination networks, where multicast clients can join groups and + receive multicast data. One or more downstream interfaces must be configured. + + select + + + + + upstream + + + igmpthreshold + Threshold + Defines the TTL threshold for the network interface. Packets + with a lower TTL than the threshols value will be ignored. This + setting is optional, and by default the threshold is 1. + input + + + Networks + none + rowhelper + + + Network Address + input + 25 + igmpnetaddr + + + + + + igmpproxy_resync(); + + + igmpproxy_install(); + + -- cgit v1.2.3