. 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 notices, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notices, 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("globals.inc"); function interfaces_loopback_configure() { mwexec("/sbin/ifconfig lo0 127.0.0.1"); return 0; } function interfaces_vlan_configure() { global $config; $i = 0; if (is_array($config['vlans']['vlan']) && count($config['vlans']['vlan'])) { foreach ($config['vlans']['vlan'] as $vlan) { if(empty($vlan['vlanif'])) { $vlan['vlanif'] = "vlan{$i}"; } /* XXX: Maybe we should report any errors?! */ interface_vlan_configure($vlan['if'], $vlan['tag'], $vlan['vlanif']); $i++; } } } function interface_vlan_configure($if, $tag, $vlanif = "") { global $config, $g; /* make sure the parent interface is up and enable hw vlan support if available*/ mwexec("/sbin/ifconfig " . escapeshellarg($if) . " up vlanhwtag vlanmtu"); if ($g['booting'] || !(empty($vlanif))) { mwexec("/sbin/ifconfig {$vlanif} destroy", true); mwexec("/sbin/ifconfig {$vlanif} create"); } else $vlanif = exec("/sbin/ifconfig vlan create"); mwexec("/sbin/ifconfig {$vlanif} vlan " . escapeshellarg($tag) . " vlandev " . escapeshellarg($if)); mwexec("/sbin/ifconfig {$vlanif} up"); /* invalidate interface cache */ get_interface_arr(true); /* all vlans need to spoof their parent mac address, too. see * ticket #1514: http://cvstrac.pfsense.com/tktview?tn=1514,33 */ foreach($config['interfaces'] as $interfaces) { if($interfaces['if'] == $if && $interfaces['spoofmac']) { mwexec("/sbin/ifconfig " . escapeshellarg($if) . " link " . escapeshellarg($interfaces['spoofmac'])); } } return $vlanif; } function interfaces_lan_configure() { global $config, $g; $bridges_total = get_next_available_bridge_interface(); $lancfg = $config['interfaces']['lan']; /* if user has removed ip address, clear it*/ if($lancfg['ipaddr'] == "") mwexec("/sbin/ifconfig {$lancfg['if']} delete"); /* wireless configuration? */ if (is_array($lancfg['wireless'])) interfaces_wireless_configure($lancfg['if'], $lancfg['wireless']); /* MAC spoofing? */ if ($lancfg['spoofmac']) { mwexec("/sbin/ifconfig " . escapeshellarg($lancfg['if']) . " link " . escapeshellarg($lancfg['spoofmac'])); } else { $mac = get_interface_mac_address($lancfg['if']); if($mac == "ff:ff:ff:ff:ff:ff") { /* this is not a valid mac address. generate a * temporary mac address so the machine can get online. */ echo "Generating new MAC address."; $random_mac = generate_random_mac_address(); mwexec("/sbin/ifconfig " . escapeshellarg($lancfg['if']) . " link " . escapeshellarg($random_mac)); $lancfg['spoofmac'] = $random_mac; write_config(); file_notice("MAC Address altered", "The INVALID MAC address (ff:ff:ff:ff:ff:ff) on interface {$lancfg['if']} has been automatically replaced with {$random_mac}", "Interfaces"); } } /* bridged? */ if ($lancfg['bridge']) { /* use open/netBSD style bridge */ mwexec("/sbin/ifconfig bridge{$bridges_total} create"); /* force all bridged interfaces to use same mtu */ $mtu = get_interface_mtu($config['interfaces'][$lancfg['bridge']]['if']); if(intval($mtu) == 0) { log_error("An error occurred while trying to obtain the MTU setting. Using 1500."); $mtu = "1500"; } mwexec("/sbin/ifconfig {$lancfg['if']} mtu {$mtu}"); mwexec("/sbin/ifconfig {$config['interfaces'][$lancfg['bridge']]['if']} mtu {$mtu}"); /* assign items to a bridge */ mwexec("/sbin/ifconfig bridge{$bridges_total} addm {$lancfg['if']} addm {$config['interfaces'][$lancfg['bridge']]['if']}"); if(!is_interface_wireless($lancfg['if']) and !is_interface_wireless($config['interfaces'][$lancfg['bridge']]['if'])) mwexec("/sbin/ifconfig bridge{$bridges_total} stp {$config['interfaces'][$lancfg['bridge']]['if']} stp {$lancfg['if']}"); /* log commands run for debugging in /tmp/ */ $fd = fopen("{$g['tmp_path']}/bridge_config_{$lancfg['if']}", "w"); fwrite($fd, "/sbin/ifconfig {$lancfg['if']} mtu {$mtu}\n"); fwrite($fd, "/sbin/ifconfig {$config['interfaces'][$lancfg['bridge']]['if']} mtu {$mtu}\n"); fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} create\n"); fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} addm {$lancfg['if']} addm {$config['interfaces'][$lancfg['bridge']]['if']}\n"); if(!is_interface_wireless($lancfg['if']) and !is_interface_wireless($config['interfaces'][$lancfg['bridge']]['if'])) fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} stp {$lancfg['if']} stp {$config['interfaces'][$lancfg['bridge']]['if']}\n"); fclose($fd); /* bring up interfaces */ mwexec("/sbin/ifconfig bridge{$bridges_total} down"); usleep(100); mwexec("/sbin/ifconfig {$config['interfaces'][$lancfg['bridge']]['if']} up"); usleep(5); mwexec("/sbin/ifconfig {$lancfg['if']} up"); usleep(5); mwexec("/sbin/ifconfig bridge{$bridges_total} up"); $bridges_total++; /* update cache */ if ($bridges_total != find_number_of_created_bridges()) find_number_of_created_bridges(true); } /* media */ if ($lancfg['media'] || $lancfg['mediaopt']) { $cmd = "/sbin/ifconfig " . escapeshellarg($lancfg['if']); if ($lancfg['media']) $cmd .= " media " . escapeshellarg($lancfg['media']); if ($lancfg['mediaopt']) $cmd .= " mediaopt " . escapeshellarg($lancfg['mediaopt']); mwexec($cmd); } mwexec("/sbin/ifconfig " . escapeshellarg($lancfg['if']) . " " . escapeshellarg($lancfg['ipaddr'] . "/" . $lancfg['subnet'])); if (!$g['booting']) { /* make new hosts file */ system_hosts_generate(); /* reconfigure static routes (kernel may have deleted them) */ system_routing_configure(); /* set the reload filter dity flag */ touch("{$g['tmp_path']}/filter_dirty"); /* reload IPsec tunnels */ vpn_ipsec_configure(); /* reload dhcpd (gateway may have changed) */ services_dhcpd_configure(); /* reload dnsmasq */ services_dnsmasq_configure(); /* reload captive portal */ captiveportal_configure(); } return 0; } function interfaces_optional_configure() { global $config, $g; global $bridgeconfig; for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) { interfaces_optional_configure_if($i); } if (!$g['booting']) { /* reconfigure static routes (kernel may have deleted them) */ system_routing_configure(); /* reload IPsec tunnels */ vpn_ipsec_configure(); /* reload dhcpd (interface enabled/disabled/bridged status may have changed) */ services_dhcpd_configure(); /* restart dnsmasq */ services_dnsmasq_configure(); /* reload captive portal */ captiveportal_configure(); /* set the reload filter dity flag */ touch("{$g['tmp_path']}/filter_dirty"); } return 0; } function interfaces_optional_configure_if($opti) { global $config, $g; global $bridgeconfig, $debugging; $bridges_total = get_next_available_bridge_interface(); $optcfg = $config['interfaces']['opt' . $opti]; if ($g['booting']) { $optdescr = ""; if ($optcfg['descr']) $optdescr = " ({$optcfg['descr']})"; print "\tOPT{$opti}{$optdescr}... "; } if(file_exists("/tmp/{$optcfg['if']}_router")) unlink("/tmp/{$optcfg['if']}_router"); if (isset($optcfg['enable'])) { if($optcfg['gateway']) system("echo " . $optcfg['gateway'] . " > /tmp/" . $optcfg['if'] . "_router"); /* wireless configuration? */ if (is_array($optcfg['wireless'])) interfaces_wireless_configure($optcfg['if'], $optcfg['wireless']); /* MAC spoofing? */ if ($optcfg['spoofmac']) { mwexec("/sbin/ifconfig " . escapeshellarg($optcfg['if']) . " link " . escapeshellarg($optcfg['spoofmac'])); } else { $mac = get_interface_mac_address($optcfg['if']); if($mac == "ff:ff:ff:ff:ff:ff") { /* this is not a valid mac address. generate a * temporary mac address so the machine can get online. */ echo "Generating new MAC address."; $random_mac = generate_random_mac_address(); mwexec("/sbin/ifconfig " . escapeshellarg($optcfg['if']) . " link " . escapeshellarg($random_mac)); $optcfg['spoofmac'] = $random_mac; write_config(); file_notice("MAC Address altered", "The INVALID MAC address (ff:ff:ff:ff:ff:ff) on interface {$optcfg['if']} has been automatically replaced with {$random_mac}", "Interfaces"); } } /* media */ if ($optcfg['media'] || $optcfg['mediaopt']) { $cmd = "/sbin/ifconfig " . escapeshellarg($optcfg['if']); if ($optcfg['media']) $cmd .= " media " . escapeshellarg($optcfg['media']); if ($optcfg['mediaopt']) $cmd .= " mediaopt " . escapeshellarg($optcfg['mediaopt']); mwexec($cmd); } /* bridged? */ if ($optcfg['bridge']) { mwexec("/sbin/ifconfig " . escapeshellarg($optcfg['if']) . " delete up"); /* use open/netBSD style bridge */ mwexec("/sbin/ifconfig bridge{$bridges_total} create"); /* invalidate interface cache */ get_interface_arr(true); /* force all bridged interfaces to use same mtu */ $mtu = get_interface_mtu($config['interfaces'][$optcfg['bridge']]['if']); mwexec("/sbin/ifconfig {$optcfg['if']} mtu {$mtu}"); mwexec("/sbin/ifconfig {$config['interfaces'][$optcfg['bridge']]['if']} mtu {$mtu}"); /* assign items to a bridge */ mwexec("/sbin/ifconfig bridge{$bridges_total} addm {$optcfg['if']} addm {$config['interfaces'][$optcfg['bridge']]['if']}"); if(!is_interface_wireless($optcfg['if']) and !is_interface_wireless($config['interfaces'][$optcfg['bridge']]['if'])) mwexec("/sbin/ifconfig bridge{$bridges_total} stp {$config['interfaces'][$optcfg['bridge']]['if']} stp {$optcfg['if']}"); /* log commands run for debugging in /tmp/ */ $fd = fopen("{$g['tmp_path']}/bridge_config_{$optcfg['if']}", "w"); fwrite($fd, "/sbin/ifconfig {$optcfg['if']} mtu {$mtu}\n"); fwrite($fd, "/sbin/ifconfig {$config['interfaces'][$optcfg['bridge']]['if']} mtu {$mtu}\n"); fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} create\n"); fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} addm {$optcfg['if']} addm {$config['interfaces'][$optcfg['bridge']]['if']} up\n"); if(!is_interface_wireless($optcfg['if']) and !is_interface_wireless($config['interfaces'][$optcfg['bridge']]['if'])) fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} stp {$optcfg['if']} stp {$config['interfaces'][$optcfg['bridge']]['if']}\n"); fclose($fd); /* bring up interfaces */ mwexec("/sbin/ifconfig bridge{$bridges_total} down"); usleep(100); mwexec("/sbin/ifconfig {$config['interfaces'][$optcfg['bridge']]['if']} up"); usleep(5); mwexec("/sbin/ifconfig {$optcfg['if']} up"); usleep(5); mwexec("/sbin/ifconfig bridge{$bridges_total} up"); $bridges_total++; /* update cache */ if ($bridges_total != find_number_of_created_bridges()) find_number_of_created_bridges(true); } else { /* if user has selected DHCP type then act accordingly */ if($optcfg['ipaddr'] == "dhcp") { interfaces_opt_dhcp_configure("opt{$opti}"); } else { mwexec("/sbin/ifconfig " . escapeshellarg($optcfg['if']) . " " . escapeshellarg($optcfg['ipaddr'] . "/" . $optcfg['subnet'])); } } } else { mwexec("/sbin/ifconfig " . escapeshellarg($optcfg['if']) . " delete down"); } return 0; } function interfaces_carp_configure() { global $g, $config, $debugging; $balanacing = ""; $pfsyncinterface = ""; $pfsyncenabled = ""; if(isset($config['system']['developerspew'])) { $mt = microtime(); echo "interfaces_carp_configure() being called $mt\n"; } $carp_instances_counter = 0; $total_carp_interfaces_defined = find_number_of_created_carp_interfaces(); /* destroy previous interfaces */ for($x=0; $x<$total_carp_interfaces_defined; $x++) mwexec("/sbin/ifconfig carp{$x} delete"); if ($g['booting']) { echo "Configuring CARP interfaces..."; mute_kernel_msgs(); } /* suck in configuration items */ if($config['installedpackages']['carpsettings']['config']) { foreach($config['installedpackages']['carpsettings']['config'] as $carp) { $pfsyncenabled = $carp['pfsyncenabled']; $balanacing = $carp['balancing']; $pfsyncinterface = $carp['pfsyncinterface']; $pfsyncpeerip = $carp['pfsyncpeerip']; } } else { unset($pfsyncinterface); unset($balanacing); unset($pfsyncenabled); } if($balanacing) { mwexec("/sbin/sysctl net.inet.carp.arpbalance=1"); mwexec("/sbin/sysctl net.inet.carp.preempt=0"); } else { mwexec("/sbin/sysctl net.inet.carp.preempt=1"); } mwexec("/sbin/sysctl net.inet.carp.log=2"); // tell syslog about state changes $carp_sync_int = convert_friendly_interface_to_real_interface_name($pfsyncinterface); if($g['booting']) { /* install rules to alllow pfsync to sync up during boot * carp interfaces will remain down until the bootup sequence finishes */ exec("echo pass quick proto carp all keep state > /tmp/rules.boot"); exec("echo pass quick proto pfsync all >> /tmp/rules.boot"); exec("echo pass out proto { tcp, udp } from any to any port 53 keep state >> /tmp/rules.boot"); exec("/sbin/pfctl -f /tmp/rules.boot"); } /* setup pfsync interface */ if($carp_sync_int and $pfsyncenabled) { if($pfsyncpeerip) { mwexec("/sbin/ifconfig pfsync0 syncdev {$carp_sync_int} syncpeer {$pfsyncpeerip} up"); } else { mwexec("/sbin/ifconfig pfsync0 syncdev {$carp_sync_int} up"); } } else { mwexec("/sbin/ifconfig pfsync0 syncdev lo0 up"); } $fd = fopen("/tmp/carp.sh", "w"); if($config['virtualip']['vip']) { $viparr = &$config['virtualip']['vip']; mwexec("/sbin/sysctl net.inet.carp.allow=1"); } else { $viparr = array(); mwexec("/sbin/sysctl net.inet.carp.allow=0"); } foreach ($viparr as $vip) { if ($vip['mode'] == "carp") { $vip_password = $vip['password']; $vip_password = str_replace(" ", "", $vip_password); /* ensure CARP IP really exists prior to loading up */ $found = false; $iflist = array("lan", "wan"); for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) $iflist['opt' . $i] = 'opt' . $i; foreach($iflist as $if) { /* ignore down or "disabled" interfaces */ if($if <> "lan" and $if <> "wan") if (!isset($config['interfaces'][$if]['enable'])) continue; $ww_subnet_ip = $config['interfaces'][$if]['ipaddr']; $ww_subnet_bits = $config['interfaces'][$if]['subnet']; if (ip_in_subnet($vip['subnet'], gen_subnet($ww_subnet_ip, $ww_subnet_bits) . "/" . $ww_subnet_bits)) $found = true; } if($found == false) { file_notice("CARP", "Sorry but we could not find a matching real interface subnet for the virtual IP address {$vip['subnet']}.", "Firewall: Virtual IP", ""); continue; } /* ensure the interface containing the VIP really exists prevents a panic if the interface is missing or invalid */ $realif = convert_friendly_interface_to_real_interface_name($vip['interface']); $intcount = exec("/sbin/ifconfig | grep $realif | wc -l | awk '{print $1}'"); if($intcount < 1) { file_notice("CARP", "Interface specified for the virtual IP address {$vip['subnet']} does not exist. Skipping this VIP.", "Firewall: Virtual IP", ""); continue; } /* create the carp interface and setup */ mwexec("/sbin/ifconfig carp" . $carp_instances_counter . " create"); fwrite($fd, "/sbin/ifconfig carp" . $carp_instances_counter . " create\n"); /* invalidate interface cache */ get_interface_arr(true); $broadcast_address = gen_subnet_max($vip['subnet'], $vip['subnet_bits']); if($vip['password'] != "") $password = " pass \"" . $vip_password . "\""; if($debugging) echo "Configuring carp{$carp_instances_counter}.\n"; fwrite($fd, "/sbin/ifconfig carp" . $carp_instances_counter . " " . $vip['subnet'] . "/" . $vip['subnet_bits'] . " vhid " . $vip['vhid'] . "{$carpdev} advskew 200 " . $password . "\n"); mwexec("/sbin/ifconfig carp" . $carp_instances_counter . " " . $vip['subnet'] . "/" . $vip['subnet_bits'] . " vhid " . $vip['vhid'] . "{$carpdev} advskew 200 " . $password); mwexec("/sbin/ifconfig carp" . $carp_instances_counter . " up"); fwrite($fd, "/sbin/ifconfig carp" . $carp_instances_counter . " up\n"); usleep(10); $carp_instances_counter++; } } fclose($fd); mwexec("/bin/sh /tmp/carp.sh"); if ($g['booting']) { unmute_kernel_msgs(); echo "done.\n"; } /* update cache */ if ($carp_instances_counter != find_number_of_created_carp_interfaces()) find_number_of_created_carp_interfaces(true); } function interfaces_carp_bring_up_final() { global $config, $g, $debugging; if(isset($config['system']['developerspew'])) { $mt = microtime(); echo "interfaces_carp_bring_up_final() being called $mt\n"; } if(!$config['virtualip']['vip']) return; $viparr = &$config['virtualip']['vip']; /* could not locate an array, return */ if(!is_array($viparr)) return; $havecarp = false; foreach ($viparr as $vip) { /* bail if this isn't a carp VIP */ if ($vip['mode'] == "carp") $havecarp = true; } if($havecarp == false) return; $carp_instances_counter = 0; $counter = 0; if($g['booting']) echo "Waiting for final CARP interface bringup..."; $supress = intval(`/sbin/sysctl net.inet.carp.suppress_preempt | cut -d" " -f2`); if($g['booting']) { while($supress > 0) { sleep(1); $supress = intval(`/sbin/sysctl net.inet.carp.suppress_preempt | cut -d" " -f2`); if($counter > 15) $supress = 0; $counter++; echo "."; } } foreach ($viparr as $vip) { /* bail if this isn't a carp VIP */ if ($vip['mode'] != "carp") continue; /* ensure CARP IP really exists prior to loading up */ $found = false; $iflist = array("lan", "wan"); for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) $iflist['opt' . $i] = 'opt' . $i; foreach($iflist as $if) { /* ignore down or "disabled" interfaces */ if($if <> "lan" and $if <> "wan") if (!isset($config['interfaces'][$if]['enable'])) continue; $ww_subnet_ip = $config['interfaces'][$if]['ipaddr']; $ww_subnet_bits = $config['interfaces'][$if]['subnet']; if (ip_in_subnet($vip['subnet'], gen_subnet($ww_subnet_ip, $ww_subnet_bits) . "/" . $ww_subnet_bits)) $found = true; } if($found == false) { file_notice("CARP", "Sorry but we could not find a matching real interface subnet for the virtual IP address {$vip['subnet']}.", "Firewall: Virtual IP", ""); continue; } /* ensure the interface containing the VIP really exists prevents a panic if the interface is missing or invalid */ $realif = convert_friendly_interface_to_real_interface_name($vip['interface']); $intcount = exec("/sbin/ifconfig | grep $realif | wc -l | awk '{print $1}'"); if($intcount < 1) { file_notice("CARP", "Interface specified for the virtual IP address {$vip['subnet']} does not exist. Skipping this VIP.", "Firewall: Virtual IP", ""); continue; } if($debugging) echo "Upping interface carp{$carp_instances_counter}.\n"; $broadcast_address = gen_subnet_max($vip['subnet'], $vip['subnet_bits']); if($vip['password'] != "") $password = " pass " . $vip['password']; if($debugging) echo "/sbin/ifconfig carp" . $carp_instances_counter . " " . $vip['subnet'] . "/" . $vip['subnet_bits'] . " vhid " . $vip['vhid'] . "{$carpdev} advskew " . $vip['advskew'] . $password . "\n"; mwexec("/sbin/ifconfig carp" . $carp_instances_counter . " " . $vip['subnet'] . "/" . $vip['subnet_bits'] . " vhid " . $vip['vhid'] . "{$carpdev} advskew " . $vip['advskew'] . $password); usleep(100); mwexec("/sbin/ifconfig carp" . $carp_instances_counter . " up"); $carp_instances_counter++; } if($g['booting']) echo " done.\n"; } function interfaces_wireless_configure($if, $wlcfg) { global $config, $g; /* open up a shell script that will be used to output the commands. * since wireless is changing a lot, these series of commands are fragile * and will sometimes need to be verified by a operator by executing the command * and returning the output of the command to the developers for inspection. please * do not change this routine from a shell script to individul exec commands. -sullrich */ conf_mount_rw(); unlink_if_exists("{$g['tmp_path']}/{$if}_setup.sh"); $fd_set = fopen("/tmp/{$if}_setup.sh","w"); fwrite($fd_set, "#!/bin/sh\n"); fwrite($fd_set, "# pfSense wireless configuration script.\n\n"); fwrite($fd_set, "# enable shell debugging\n"); fwrite($fd_set, "set -x\n"); /* set values for /path/program */ $hostapd = "/usr/sbin/hostapd"; $wpa_supplicant = "/usr/sbin/wpa_supplicant"; $ifconfig = "/sbin/ifconfig"; $killall = "/usr/bin/killall"; /* Set all wireless ifconfig variables (splitt up to get rid of needed checking) */ /* Set a/b/g standard */ $standard = "mode " . escapeshellarg($wlcfg['standard']); /* Set 802.11g protection mode */ $protmode = "protmode " . escapeshellarg($wlcfg['protmode']); /* set wireless channel value */ if(isset($wlcfg['channel'])) if($wlcfg['channel'] == "0") $channel = "channel any"; else $channel = "channel " . escapeshellarg($wlcfg['channel']); /* set Distance value */ if($wlcfg['distance']) $distance = escapeshellarg($wlcfg['distance']); /* Set ssid */ if($wlcfg['ssid']) $ssid = "ssid " . escapeshellarg($wlcfg['ssid']); /* Set wireless hostap mode */ if ($wlcfg['mode'] == "hostap") $hostapmode = "mediaopt hostap"; else $hostapmode = "-mediaopt hostap"; /* Set wireless adhoc mode */ if ($wlcfg['mode'] == "adhoc") $adhocmode = "mediaopt adhoc"; else $adhocmode = "-mediaopt adhoc"; /* Not neccesary to set BSS mode as this is default if adhoc and/or hostap is NOT set */ /* handle hide ssid option */ if(isset($wlcfg['hidessid']['enable'])) $hidessid = "hidessid"; else $hidessid = "-hidessid"; /* handle pureg (802.11g) only option */ if(isset($wlcfg['pureg']['enable'])) $pureg = "mode 11g pureg"; else $pureg = "-pureg"; /* enable apbridge option */ if(isset($wlcfg['apbridge']['enable'])) $apbridge = "apbridge"; else $apbridge = "-apbridge"; /* handle turbo option */ if(isset($wlcfg['turbo']['enable'])) $turbo = "mediaopt turbo"; else $turbo = "-mediaopt turbo"; /* handle txpower setting */ if($wlcfg['txpower'] <> "") $txpower = "txpower " . escapeshellarg($wlcfg['txpower']); /* handle wme option */ if(isset($wlcfg['wme']['enable'])) $wme = "wme"; else $wme = "-wme"; /* set up wep if enabled */ if (isset($wlcfg['wep']['enable']) && is_array($wlcfg['wep']['key'])) { if($wlcfg['wpa']['auth_algs'] == "1") $wepset .= "authmode open wepmode on "; else if($wlcfg['wpa']['auth_algs'] == "2") $wepset .= "authmode shared wepmode on "; else if($wlcfg['wpa']['auth_algs'] == "3") $wepset .= "authmode mixed wepmode on "; $i = 1; foreach ($wlcfg['wep']['key'] as $wepkey) { $wepset .= "wepkey " . escapeshellarg("{$i}:{$wepkey['value']}") . " "; if (isset($wepkey['txkey'])) $wepset .= "weptxkey {$i} "; $i++; } } else { $wepset .= "authmode open wepmode off "; } /* generate wpa_supplicant/hostap config if wpa is enabled */ switch ($wlcfg['mode']) { case 'bss': if (isset($wlcfg['wpa']['enable'])) { $wpa .= << "") $realinterface = filter_translate_type_to_real_interface($interface); $pid = `ps awwwux | grep dhclient | grep -v grep | grep {$realinterface} | awk '{ print \$2 }'`; return $pid; } function interfaces_wan_configure() { global $config, $g, $bridges_total; $wancfg = $config['interfaces']['wan']; if(file_exists("/tmp/{$config['interfaces']['wan']['if']}_router")) unlink("/tmp/{$config['interfaces']['wan']['if']}_router"); if(!$g['booting']) { mute_kernel_msgs(); /* find dhclient process for wan and kill it */ killbypid(find_dhclient_process("wan")); /* remove wanup file if it exists */ unlink_if_exists("{$g['tmp_path']}/wanup"); /* kill PPPoE client (mpd) */ killbypid("{$g['varrun_path']}/mpd.pid"); /* wait for processes to die */ sleep(3); unlink_if_exists("{$g['varetc_path']}/dhclient_wan.conf"); unlink_if_exists("{$g['varetc_path']}/mpd.conf"); unlink_if_exists("{$g['varetc_path']}/mpd.links"); unlink_if_exists("{$g['vardb_path']}/wanip"); unlink_if_exists("{$g['varetc_path']}/nameservers.conf"); } /* remove all addresses first */ while (mwexec("/sbin/ifconfig " . escapeshellarg($wancfg['if']) . " -alias", true) == 0); mwexec("/sbin/ifconfig " . escapeshellarg($wancfg['if']) . " down"); /* wireless configuration? */ if (is_array($wancfg['wireless'])) interfaces_wireless_configure($wancfg['if'], $wancfg['wireless']); if ($wancfg['spoofmac']) { mwexec("/sbin/ifconfig " . escapeshellarg($wancfg['if']) . " link " . escapeshellarg($wancfg['spoofmac'])); } else { $mac = get_interface_mac_address($wancfg['if']); if($mac == "ff:ff:ff:ff:ff:ff") { /* this is not a valid mac address. generate a * temporary mac address so the machine can get online. */ echo "Generating new MAC address."; $random_mac = generate_random_mac_address(); mwexec("/sbin/ifconfig " . escapeshellarg($wancfg['if']) . " link " . escapeshellarg($random_mac)); $wancfg['spoofmac'] = $random_mac; write_config(); file_notice("MAC Address altered", "The INVALID MAC address (ff:ff:ff:ff:ff:ff) on interface {$wancfg['if']} has been automatically replaced with {$random_mac}", "Interfaces"); } } /* media */ if ($wancfg['media'] || $wancfg['mediaopt']) { $cmd = "/sbin/ifconfig " . escapeshellarg($wancfg['if']); if ($wancfg['media']) $cmd .= " media " . escapeshellarg($wancfg['media']); if ($wancfg['mediaopt']) $cmd .= " mediaopt " . escapeshellarg($wancfg['mediaopt']); mwexec($cmd); } switch ($wancfg['ipaddr']) { case 'dhcp': interfaces_wan_dhcp_configure(); break; case 'pppoe': interfaces_wan_pppoe_configure(); break; case 'pptp': interfaces_wan_pptp_configure(); break; case 'bigpond': /* just configure DHCP for now; fire up bpalogin when we've got the lease */ interfaces_wan_dhcp_configure(); break; default: if (isset($wancfg['ispointtopoint']) && $wancfg['pointtopoint']) { mwexec("/sbin/ifconfig " . escapeshellarg($wancfg['if']) . " " . escapeshellarg($wancfg['ipaddr'] . "/" . $wancfg['subnet']) . " " . escapeshellarg($wancfg['pointtopoint']) . " up"); } else { if($wancfg['ipaddr'] && $wancfg['subnet']) mwexec("/sbin/ifconfig " . escapeshellarg($wancfg['if']) . " " . escapeshellarg($wancfg['ipaddr'] . "/" . $wancfg['subnet'])); } /* install default route */ mwexec("/sbin/route delete default", true); $dont_add_route = false; /* if OLSRD is enabled, allow WAN to house DHCP. */ if($config['installedpackages']['olsrd']) { foreach($config['installedpackages']['olsrd']['config'] as $olsrd) { if($olsrd['enabledyngw'] == "on") { $dont_add_route = true; } } } if($dont_add_route == false) mwexec("/sbin/route add default " . escapeshellarg($config['interfaces']['wan']['gateway'])); if($config['interfaces']['wan']['gateway']) system("echo " . $config['interfaces']['wan']['gateway'] . " > /tmp/" . $config['interfaces']['wan']['if'] . "_router"); /* resync pf (done automatically for DHCP/PPPoE/PPTP) */ filter_configure(); } if ($wancfg['bridge']) { /* use open/netBSD style bridge */ mwexec("/sbin/ifconfig bridge{$bridges_total} create"); /* invalidate interface cache */ get_interface_arr(true); /* force all bridged interfaces to use same mtu */ $mtu = get_interface_mtu($config['interfaces'][$wancfg['bridge']]['if']); mwexec("/sbin/ifconfig {$wancfg['if']} mtu {$mtu}"); mwexec("/sbin/ifconfig {$config['interfaces'][$wancfg['bridge']]['if']} mtu {$mtu}"); /* assign items to a bridge */ mwexec("/sbin/ifconfig bridge{$bridges_total} addm {$wancfg['if']} addm {$config['interfaces'][$wancfg['bridge']]['if']}"); if(!is_interface_wireless($wancfg['if']) and !is_interface_wireless($config['interfaces'][$wancfg['bridge']]['if'])) mwexec("/sbin/ifconfig bridge{$bridges_total} stp {$config['interfaces'][$wancfg['bridge']]['if']} stp {$wancfg['if']}"); /* log commands run for debugging in /tmp/ */ $fd = fopen("{$g['tmp_path']}/bridge_config_{$wancfg['if']}", "w"); fwrite($fd, "/sbin/ifconfig {$wancfg['if']} mtu {$mtu}\n"); fwrite($fd, "/sbin/ifconfig {$config['interfaces'][$wancfg['bridge']]['if']} mtu {$mtu}\n"); fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} create\n"); fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} addm {$wancfg['if']} addm {$config['interfaces'][$wancfg['bridge']]['if']}\n"); if(!is_interface_wireless($wancfg['if']) and !is_interface_wireless($config['interfaces'][$wancfg['bridge']]['if'])) fwrite($fd, "/sbin/ifconfig bridge{$bridges_total} stp {$wancfg['if']} stp {$config['interfaces'][$wancfg['bridge']]['if']}\n"); fclose($fd); /* bring up interfaces */ mwexec("/sbin/ifconfig bridge{$bridges_total} down"); usleep(100); mwexec("/sbin/ifconfig {$config['interfaces'][$wancfg['bridge']]['if']} up"); usleep(5); mwexec("/sbin/ifconfig {$wancfg['if']} up"); usleep(5); mwexec("/sbin/ifconfig bridge{$bridges_total} up"); $bridges_total++; /* update cache */ if ($bridges_total != find_number_of_created_bridges()) find_number_of_created_bridges(true); } if (!$g['booting']) { /* reconfigure static routes (kernel may have deleted them) */ system_routing_configure(); /* set the reload filter dity flag */ touch("{$g['tmp_path']}/filter_dirty"); /* reload ipsec tunnels */ vpn_ipsec_configure(); /* restart ez-ipupdate */ services_dyndns_configure(); /* force DNS update */ services_dnsupdate_process(); /* restart dnsmasq */ services_dnsmasq_configure(); /* reload captive portal */ captiveportal_configure(); } mwexec("/sbin/ifconfig {$wancfg['if']} up"); unmute_kernel_msgs(); return 0; } function interfaces_opt_dhcp_configure($interface) { global $config, $g; $optcfg = $config['interfaces'][$interface]; $optif = $optcfg['if']; /* generate dhclient_wan.conf */ $fd = fopen("{$g['varetc_path']}/dhclient_{$optif}.conf", "w"); if (!$fd) { printf("Error: cannot open dhclient_{$optif}.conf in interfaces_opt_dhcp_configure({$optif}) for writing.\n"); return 1; } if ($optcfg['dhcphostname']) { $dhclientconf_hostname = "send dhcp-client-identifier \"{$optcfg['dhcphostname']}\";\n"; $dhclientconf_hostname .= "\tsend host-name \"{$optcfg['dhcphostname']}\";\n"; } else { $dhclientconf_hostname = ""; } $dhclientconf = ""; $dhclientconf .= << "") $realinterface = filter_translate_type_to_real_interface($interface); $optcfg = $config['interfaces'][$interface]; /* generate dhclient_$interface.conf */ $fd = fopen("{$g['varetc_path']}/dhclient_{$interface}.conf", "w"); if (!$fd) { printf("Error: cannot open dhclient_{$interface}.conf in interfaces_dhcp_configure({$$interface}) for writing.\n"); return 1; } if ($optcfg['dhcphostname']) { $dhclientconf_hostname = "send dhcp-client-identifier \"{$optcfg['dhcphostname']}\";\n"; $dhclientconf_hostname .= "\tsend host-name \"{$optcfg['dhcphostname']}\";\n"; } else { $dhclientconf_hostname = ""; } $dhclientconf = ""; $dhclientconf .= <</tmp/{$optif}_output >/tmp/{$optif}_error_output"); $fout = fopen("/tmp/ifconfig_{$optif}","w"); fwrite($fout, "/sbin/dhclient -c {$g['varetc_path']}/dhclient_{$optif}.conf {$optif}"); fclose($fout); return 0; } function interfaces_wan_dhcp_configure() { global $config, $g; $wancfg = $config['interfaces']['wan']; /* generate dhclient_wan.conf */ $fd = fopen("{$g['varetc_path']}/dhclient_wan.conf", "w"); if (!$fd) { printf("Error: cannot open dhclient_wan.conf in interfaces_wan_dhcp_configure() for writing.\n"); return 1; } if ($wancfg['dhcphostname']) { $dhclientconf_hostname = "send dhcp-client-identifier \"{$wancfg['dhcphostname']}\";\n"; $dhclientconf_hostname .= "\tsend host-name \"{$wancfg['dhcphostname']}\";\n"; } else { $dhclientconf_hostname = ""; } $dhclientconf = ""; $dhclientconf .= <</tmp/{$wanif}_output >/tmp/{$wanif}_error_output"); $fout = fopen("/tmp/ifconfig_{$wanif}","w"); fwrite($fout, "/sbin/dhclient -c {$g['varetc_path']}/dhclient_wan.conf {$wanif}"); fclose($fout); return 0; } function interfaces_wan_dhcp_down() { global $config; $wancfg = $config['interfaces']['wan']; $wanif = $wancfg['if']; mwexec("/sbin/ifconfig {$wanif} delete"); sleep(1); } function interfaces_dhcp_down($interface) { global $config; if(filter_translate_type_to_real_interface($interface) <> "") $realinterface = filter_translate_type_to_real_interface($interface); mwexec("/sbin/ifconfig {$realinterface} down"); sleep(1); $pid = find_dhclient_process($interface); if($pid) mwexec("kill {$pid}"); } function interfaces_dhcp_up($interface) { interfaces_dhcp_configure($interface); sleep(1); } function interfaces_wan_dhcp_up() { interfaces_wan_dhcp_configure(); sleep(1); } function interfaces_wan_pppoe_configure() { global $config, $g; $wancfg = $config['interfaces']['wan']; $pppoecfg = $config['pppoe']; /* generate mpd.conf */ $fd = fopen("{$g['varetc_path']}/mpd.conf", "w"); if (!$fd) { printf("Error: cannot open mpd.conf in interfaces_wan_pppoe_configure().\n"); return 1; } $idle = 0; if (isset($pppoecfg['ondemand'])) { $ondemand = "enable"; if ($pppoecfg['timeout']) $idle = $pppoecfg['timeout']; } else { $ondemand = "disable"; } $mpdconf = << "") { if($match_array[1][0] > $bridges_total) $bridges_total = $match_array[1][0]; } } return "{$bridges_total}"; } function get_number_of_vlan_interfaces() { $vlans_total = 0; $vlans = split("\n", `/sbin/ifconfig -a | /usr/bin/grep vlan | grep flags`); foreach($vlans as $bridge) { $match_array = ""; preg_match_all("/vlan(.*):/",$bridge,$match_array); if($match_array[1][0] <> "") { if($match_array[1][0] > $vlans_total) $vlans_total = $match_array[1][0]; } } return "{$vlans_total}"; } function get_next_available_bridge_interface() { $bridges_total = get_number_of_bridged_interfaces(); $interfaces = `/sbin/ifconfig -l`; $x=0; for($x=0; $x<$bridges_total; $x++) { if(!stristr($interfaces, "bridge{$x}")) { return "{$x}"; } } return "{$x}"; } function destroy_bridge($bridge_num) { mwexec("/sbin/ifconfig bridge{$bridge_num} down"); sleep(1); mwexec("/sbin/ifconfig bridge{$bridge_num} delete"); sleep(1); mwexec("/sbin/ifconfig bridge{$bridge_num} destroy"); sleep(1); return; } function discover_bridge($interface1, $interface2) { if(!$interface1) return; if(!$interface2) return; $total_bridges = get_number_of_bridged_interfaces(); $total_bridges++; $interfaces = `/sbin/ifconfig -l`; $x=0; for($x=0; $x<$total_bridges; $x++) { $bridge_text = "NA"; if(!stristr($interfaces, "bridge{$x}")) continue; $bridge_text = `/sbin/ifconfig bridge{$x} | grep member`; if(stristr($bridge_text, $interface1)) if(stristr($bridge_text, $interface2)) return $x; } return "-1"; } function get_wireless_modes($interface) { /* return wireless modes and channels */ if(is_interface_wireless($interface)) { $wi = 1; $ifconfig = "/sbin/ifconfig"; $awk = "/usr/bin/awk"; $chan_list = "$ifconfig $interface list chan"; $stack_list = "$awk -F\"Channel \" '{ gsub(/\\*/, \" \"); print \$2 \"\\\n\" \$3 }'"; $format_list = "$awk '{print \$5 \" \" \$6 \",\" \$1}'"; $interface_channels = ""; exec("$chan_list | $stack_list | sort -u | $format_list 2>&1", $interface_channels); $interface_channel_count = count($interface_channels); $c = 0; while ($c < $interface_channel_count) { $channel_line = explode(",", $interface_channels["$c"]); $wireless_mode = trim($channel_line[0]); $wireless_channel = trim($channel_line[1]); if(trim($wireless_mode) != "") { /* if we only have 11g also set 11b channels */ if($wireless_mode == "11g") { $wireless_modes["11b"] = array(); } $wireless_modes["$wireless_mode"]["$c"] = $wireless_channel; } $c++; } } return($wireless_modes); } function get_interface_mac($interface) { /* build interface list with netstat */ $linkinfo = ""; exec("/usr/bin/netstat -I $interface -nW -f link", $linkinfo); array_shift($linkinfo); $alink = preg_split("/\s+/", $linkinfo[0]); $mac = chop($alink[3]); return $mac; } ?>