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. * All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* include all configuration functions */ require_once("config.inc"); require_once("functions.inc"); require_once("filter.inc"); require_once("radius.inc"); require_once("voucher.inc"); function get_default_captive_portal_html() { global $config, $g, $cpzone; $translated_text1 = sprintf(gettext("%s captive portal"), $g['product_name']); $translated_text2 = sprintf(gettext("Welcome to the %s Captive Portal!"), $g['product_name']); $translated_text3 = gettext("Username:"); $translated_text4 = gettext("Password:"); $htmltext = << EOD; return $htmltext; } function captiveportal_load_modules() { global $config; mute_kernel_msgs(); if (!is_module_loaded("ipfw.ko")) { mwexec("/sbin/kldload ipfw"); /* make sure ipfw is not on pfil hooks */ set_sysctl(array( "net.inet.ip.pfil.inbound" => "pf", "net.inet6.ip6.pfil.inbound" => "pf", "net.inet.ip.pfil.outbound" => "pf", "net.inet6.ip6.pfil.outbound" => "pf" )); } /* Activate layer2 filtering */ set_sysctl(array( "net.link.ether.ipfw" => "1", "net.inet.ip.fw.one_pass" => "1", "net.inet.ip.fw.tables_max" => "65534" )); /* Always load dummynet now that even allowed ip and mac passthrough use it. */ if (!is_module_loaded("dummynet.ko")) { mwexec("/sbin/kldload dummynet"); set_sysctl(array( "net.inet.ip.dummynet.io_fast" => "1", "net.inet.ip.dummynet.hash_size" => "256" )); } unmute_kernel_msgs(); } function captiveportal_configure() { global $config, $cpzone, $cpzoneid; if (is_array($config['captiveportal'])) { foreach ($config['captiveportal'] as $cpkey => $cp) { $cpzone = $cpkey; $cpzoneid = $cp['zoneid']; captiveportal_configure_zone($cp); } } } function captiveportal_configure_zone($cpcfg) { global $config, $g, $cpzone, $cpzoneid; $captiveportallck = lock("captiveportal{$cpzone}", LOCK_EX); if (isset($cpcfg['enable'])) { if (platform_booting()) { echo "Starting captive portal({$cpcfg['zone']})... "; /* remove old information */ unlink_if_exists("{$g['vardb_path']}/captiveportal{$cpzone}.db"); } else { captiveportal_syslog("Reconfiguring captive portal({$cpcfg['zone']})."); } /* init ipfw rules */ captiveportal_init_rules(true); /* kill any running minicron */ killbypid("{$g['varrun_path']}/cp_prunedb_{$cpzone}.pid"); /* initialize minicron interval value */ $croninterval = $cpcfg['croninterval'] ? $cpcfg['croninterval'] : 60; /* double check if the $croninterval is numeric and at least 10 seconds. If not we set it to 60 to avoid problems */ if ((!is_numeric($croninterval)) || ($croninterval < 10)) { $croninterval = 60; } /* write portal page */ if (is_array($cpcfg['page']) && $cpcfg['page']['htmltext']) { $htmltext = base64_decode($cpcfg['page']['htmltext']); } else { /* example/template page */ $htmltext = get_default_captive_portal_html(); } $fd = @fopen("{$g['varetc_path']}/captiveportal_{$cpzone}.html", "w"); if ($fd) { // Special case handling. Convert so that we can pass this page // through the PHP interpreter later without clobbering the vars. $htmltext = str_replace("\$PORTAL_ZONE\$", "#PORTAL_ZONE#", $htmltext); $htmltext = str_replace("\$PORTAL_REDIRURL\$", "#PORTAL_REDIRURL#", $htmltext); $htmltext = str_replace("\$PORTAL_MESSAGE\$", "#PORTAL_MESSAGE#", $htmltext); $htmltext = str_replace("\$CLIENT_MAC\$", "#CLIENT_MAC#", $htmltext); $htmltext = str_replace("\$CLIENT_IP\$", "#CLIENT_IP#", $htmltext); $htmltext = str_replace("\$PORTAL_ACTION\$", "#PORTAL_ACTION#", $htmltext); if ($cpcfg['preauthurl']) { $htmltext = str_replace("\$PORTAL_REDIRURL\$", "{$cpcfg['preauthurl']}", $htmltext); $htmltext = str_replace("#PORTAL_REDIRURL#", "{$cpcfg['preauthurl']}", $htmltext); } fwrite($fd, $htmltext); fclose($fd); } unset($htmltext); /* write error page */ if (is_array($cpcfg['page']) && $cpcfg['page']['errtext']) { $errtext = base64_decode($cpcfg['page']['errtext']); } else { /* example page */ $errtext = get_default_captive_portal_html(); } $fd = @fopen("{$g['varetc_path']}/captiveportal-{$cpzone}-error.html", "w"); if ($fd) { // Special case handling. Convert so that we can pass this page // through the PHP interpreter later without clobbering the vars. $errtext = str_replace("\$PORTAL_ZONE\$", "#PORTAL_ZONE#", $errtext); $errtext = str_replace("\$PORTAL_REDIRURL\$", "#PORTAL_REDIRURL#", $errtext); $errtext = str_replace("\$PORTAL_MESSAGE\$", "#PORTAL_MESSAGE#", $errtext); $errtext = str_replace("\$CLIENT_MAC\$", "#CLIENT_MAC#", $errtext); $errtext = str_replace("\$CLIENT_IP\$", "#CLIENT_IP#", $errtext); $errtext = str_replace("\$PORTAL_ACTION\$", "#PORTAL_ACTION#", $errtext); if ($cpcfg['preauthurl']) { $errtext = str_replace("\$PORTAL_REDIRURL\$", "{$cpcfg['preauthurl']}", $errtext); $errtext = str_replace("#PORTAL_REDIRURL#", "{$cpcfg['preauthurl']}", $errtext); } fwrite($fd, $errtext); fclose($fd); } unset($errtext); /* write logout page */ if (is_array($cpcfg['page']) && $cpcfg['page']['logouttext']) { $logouttext = base64_decode($cpcfg['page']['logouttext']); } else { /* example page */ $translated_text1 = gettext("Redirecting..."); $translated_text2 = gettext("Redirecting to"); $translated_text3 = gettext("Logout"); $translated_text4 = gettext("Click the button below to disconnect"); $logouttext = << {$translated_text1} {$translated_text2} ... EOD; } $fd = @fopen("{$g['varetc_path']}/captiveportal-{$cpzone}-logout.html", "w"); if ($fd) { fwrite($fd, $logouttext); fclose($fd); } unset($logouttext); /* write elements */ captiveportal_write_elements(); /* kill any running CP nginx instances */ killbypid("{$g['varrun_path']}/nginx-{$cpzone}-CaptivePortal.pid"); killbypid("{$g['varrun_path']}/nginx-{$cpzone}-CaptivePortal-SSL.pid"); /* start up the webserving daemon */ captiveportal_init_webgui_zone($cpcfg); /* Kill any existing prunecaptiveportal processes */ if (file_exists("{$g['varrun_path']}/cp_prunedb_{$cpzone}.pid")) { killbypid("{$g['varrun_path']}/cp_prunedb_{$cpzone}.pid"); } /* start pruning process (interval defaults to 60 seconds) */ mwexec("/usr/local/bin/minicron $croninterval {$g['varrun_path']}/cp_prunedb_{$cpzone}.pid " . "/etc/rc.prunecaptiveportal {$cpzone}"); /* generate radius server database */ unlink_if_exists("{$g['vardb_path']}/captiveportal_radius_{$cpzone}.db"); captiveportal_init_radius_servers(); if (platform_booting()) { /* send Accounting-On to server */ captiveportal_send_server_accounting(); echo "done\n"; } } else { killbypid("{$g['varrun_path']}/nginx-{$cpzone}-CaptivePortal.pid"); killbypid("{$g['varrun_path']}/nginx-{$cpzone}-CaptivePortal-SSL.pid"); killbypid("{$g['varrun_path']}/cp_prunedb_{$cpzone}.pid"); @unlink("{$g['varetc_path']}/captiveportal_{$cpzone}.html"); @unlink("{$g['varetc_path']}/captiveportal-{$cpzone}-error.html"); @unlink("{$g['varetc_path']}/captiveportal-{$cpzone}-logout.html"); captiveportal_radius_stop_all(10); // NAS-Request captiveportal_filterdns_configure(); /* remove old information */ unlink_if_exists("{$g['vardb_path']}/captiveportal{$cpzone}.db"); unlink_if_exists("{$g['vardb_path']}/captiveportal_radius_{$cpzone}.db"); unlink_if_exists("{$g['vardb_path']}/captiveportal_{$cpzone}.rules"); /* Release allocated pipes for this zone */ $pipes_to_remove = captiveportal_free_dnrules(); captiveportal_delete_rules($pipes_to_remove); if (empty($config['captiveportal'])) { set_single_sysctl("net.link.ether.ipfw", "0"); } else { /* Deactivate ipfw(4) if not needed */ $cpactive = false; if (is_array($config['captiveportal'])) { foreach ($config['captiveportal'] as $cpkey => $cp) { if (isset($cp['enable'])) { $cpactive = true; break; } } } if ($cpactive === false) { set_single_sysctl("net.link.ether.ipfw", "0"); } } } unlock($captiveportallck); return 0; } function captiveportal_init_webgui() { global $config, $cpzone; if (is_array($config['captiveportal'])) { foreach ($config['captiveportal'] as $cpkey => $cp) { $cpzone = $cpkey; captiveportal_init_webgui_zone($cp); } } } function captiveportal_init_webgui_zonename($zone) { global $config, $cpzone; if (isset($config['captiveportal'][$zone])) { $cpzone = $zone; captiveportal_init_webgui_zone($config['captiveportal'][$zone]); } } function captiveportal_init_webgui_zone($cpcfg) { global $g, $config, $cpzone; if (!isset($cpcfg['enable'])) { return; } if (isset($cpcfg['httpslogin'])) { $cert = lookup_cert($cpcfg['certref']); $crt = base64_decode($cert['crt']); $key = base64_decode($cert['prv']); $ca = ca_chain($cert); /* generate nginx configuration */ if (!empty($cpcfg['listenporthttps'])) { $listenporthttps = $cpcfg['listenporthttps']; } else { $listenporthttps = 8001 + $cpcfg['zoneid']; } system_generate_nginx_config("{$g['varetc_path']}/nginx-{$cpzone}-CaptivePortal-SSL.conf", $crt, $key, $ca, "nginx-{$cpzone}-CaptivePortal-SSL.pid", $listenporthttps, "/usr/local/captiveportal", "cert-{$cpzone}-portal.pem", "ca-{$cpzone}-portal.pem", $cpzone); } /* generate nginx configuration */ if (!empty($cpcfg['listenporthttp'])) { $listenporthttp = $cpcfg['listenporthttp']; } else { $listenporthttp = 8000 + $cpcfg['zoneid']; } system_generate_nginx_config("{$g['varetc_path']}/nginx-{$cpzone}-CaptivePortal.conf", "", "", "", "nginx-{$cpzone}-CaptivePortal.pid", $listenporthttp, "/usr/local/captiveportal", "", "", $cpzone); @unlink("{$g['varrun']}/nginx-{$cpzone}-CaptivePortal.pid"); /* attempt to start nginx */ $res = mwexec("/usr/local/sbin/nginx -c {$g['varetc_path']}/nginx-{$cpzone}-CaptivePortal.conf"); /* fire up https instance */ if (isset($cpcfg['httpslogin'])) { @unlink("{$g['varrun']}/nginx-{$cpzone}-CaptivePortal-SSL.pid"); $res = mwexec("/usr/local/sbin/nginx -c {$g['varetc_path']}/nginx-{$cpzone}-CaptivePortal-SSL.conf"); } } function captiveportal_init_rules_byinterface($interface) { global $cpzone, $cpzoneid, $config; if (!is_array($config['captiveportal'])) { return; } foreach ($config['captiveportal'] as $cpkey => $cp) { $cpzone = $cpkey; $cpzoneid = $cp['zoneid']; $cpinterfaces = explode(",", $cp['interface']); if (in_array($interface, $cpinterfaces)) { captiveportal_init_rules(); break; } } } /* Create basic rules used by all zones */ function captiveportal_init_general_rules($flush = false) { global $g; $flush_rule = ''; if ($flush) { $flush_rule = 'flush'; } /* Already loaded */ if (!$flush && (mwexec("/sbin/ipfw list 1000", true) == 0)) { return; } $cprules = << 0) { $cpactive = true; } else { return false; } if ($reinit == false) { $captiveportallck = lock("captiveportal{$cpzone}"); } $rulenum = $skipto; $cprules .= "table {$cpzone}_pipe_mac create type mac valtype pipe\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pipe tablearg MAC table({$cpzone}_pipe_mac)"); $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "allow pfsync from any to any"); $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "allow carp from any to any\n"); $cprules .= "# layer 2: pass ARP\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pass layer2 mac-type arp,rarp"); $cprules .= "# pfsense requires for WPA\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pass layer2 mac-type 0x888e,0x88c7"); $cprules .= "# PPP Over Ethernet Session Stage/Discovery Stage\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pass layer2 mac-type 0x8863,0x8864\n"); $cprules .= "# layer 2: block anything else non-IP(v4/v6)\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "deny layer2 not mac-type ip,ipv6"); /* These tables contain host ips */ $cprules .= "table {$cpzone}_host_ips create type addr\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pass ip from any to table({$cpzone}_host_ips) in"); $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pass ip from table({$cpzone}_host_ips) to any out"); foreach ($cpips as $cpip) { $cprules .= "table {$cpzone}_host_ips add {$cpip}\n"; } $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pass ip from any to 255.255.255.255 in"); $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pass ip from 255.255.255.255 to any out"); /* Allowed ips */ $cprules .= "table {$cpzone}_allowed_up create type addr valtype pipe\n"; $cprules .= "table {$cpzone}_allowed_down create type addr valtype pipe\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pipe tablearg ip from table({$cpzone}_allowed_up) to any in"); $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pipe tablearg ip from any to table({$cpzone}_allowed_down) in"); $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pipe tablearg ip from table({$cpzone}_allowed_up) to any out"); $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pipe tablearg ip from any to table({$cpzone}_allowed_down) out"); /* Authenticated users rules. */ $cprules .= "table {$cpzone}_auth_up create type addr valtype pipe\n"; $cprules .= "table {$cpzone}_auth_down create type addr valtype pipe\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pipe tablearg ip from table({$cpzone}_auth_up) to any layer2 in"); $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pipe tablearg ip from any to table({$cpzone}_auth_down) layer2 out"); if (!empty($config['captiveportal'][$cpzone]['listenporthttp'])) { $listenporthttp = $config['captiveportal'][$cpzone]['listenporthttp']; } else { $listenporthttp = 8000 + $cpzoneid; } if (isset($config['captiveportal'][$cpzone]['httpslogin'])) { if (!empty($config['captiveportal'][$cpzone]['listenporthttps'])) { $listenporthttps = $config['captiveportal'][$cpzone]['listenporthttps']; } else { $listenporthttps = 8001 + $cpzoneid; } if (!isset($config['captiveportal'][$cpzone]['nohttpsforwards'])) { $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "fwd 127.0.0.1,{$listenporthttps} tcp from any to any dst-port 443 in"); } } $cprules .= "# redirect non-authenticated clients to captive portal\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "fwd 127.0.0.1,{$listenporthttp} tcp from any to any dst-port 80 in"); $cprules .= "# let the responses from the captive portal web server back out\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "pass tcp from any to any out"); $cprules .= "# This CP zone is over, skip to last rule\n"; $cprules .= captiveportal_create_ipfw_rule("add", $rulenum, "skipto 65534 all from any to any"); /* generate passthru mac database */ $cprules .= captiveportal_passthrumac_configure(true); $cprules .= "\n"; /* allowed ipfw rules to make allowed ip work */ $cprules .= captiveportal_allowedip_configure(); /* allowed ipfw rules to make allowed hostnames work */ $cprules .= captiveportal_allowedhostname_configure(); /* load rules */ captiveportal_delete_rules(); file_put_contents("{$g['tmp_path']}/ipfw_{$cpzone}.cp.rules", $cprules); mwexec("/sbin/ipfw -q {$g['tmp_path']}/ipfw_{$cpzone}.cp.rules", true); @unlink("{$g['tmp_path']}/ipfw_{$cpzone}.cp.rules"); unset($cprules); captiveportal_filterdns_configure(); if ($reinit == false) { unlock($captiveportallck); } } /* Delete all rules related to specific cpzone */ function captiveportal_delete_rules($pipes_to_remove = array()) { global $g, $cpzoneid, $cpzone; $skipto1 = captiveportal_ipfw_ruleno($cpzoneid); $skipto2 = $skipto1 + $g['captiveportal_rules_interval']; $cp_ifaces = pfSense_ipfw_table_list("cp_ifaces"); if (is_array($cp_ifaces)) { foreach ($cp_ifaces as $cp_iface) { if (empty($cp_iface['skipto']) || $cp_iface['skipto'] != $skipto1) { continue; } pfSense_ipfw_table("cp_ifaces", IP_FW_TABLE_XDEL, $cp_iface['iface']); } } mwexec("/sbin/ipfw delete {$skipto1}-{$skipto2}", true); $tables = captiveportal_get_ipfw_table_names(); $delrules = ""; foreach ($tables as $table) { $delrules .= "table {$table} destroy\n"; } foreach ($pipes_to_remove as $pipeno) { $delrules .= "pipe delete {$pipeno}\n"; } if (empty($delrules)) { return; } file_put_contents("{$g['tmp_path']}/ipfw_{$cpzone}.deltable.rules", $delrules); mwexec("/sbin/ipfw -q {$g['tmp_path']}/ipfw_{$cpzone}.deltable.rules", true); @unlink("{$g['tmp_path']}/ipfw_{$cpzone}.deltable.rules"); } /* * Remove clients that have been around for longer than the specified amount of time * db file structure: * timestamp,ipfw_rule_no,clientip,clientmac,username,sessionid,password,session_timeout,idle_timeout,session_terminate_time,interim_interval * (password is in Base64 and only saved when reauthentication is enabled) */ function captiveportal_prune_old() { global $g, $config, $cpzone, $cpzoneid; if (empty($cpzone)) { return; } $cpcfg = $config['captiveportal'][$cpzone]; $vcpcfg = $config['voucher'][$cpzone]; /* check for expired entries */ $idletimeout = 0; $timeout = 0; if (!empty($cpcfg['timeout']) && is_numeric($cpcfg['timeout'])) { $timeout = $cpcfg['timeout'] * 60; } if (!empty($cpcfg['idletimeout']) && is_numeric($cpcfg['idletimeout'])) { $idletimeout = $cpcfg['idletimeout'] * 60; } /* Is there any job to do? */ if (!$timeout && !$idletimeout && !isset($cpcfg['reauthenticate']) && !isset($cpcfg['radiussession_timeout']) && !isset($vcpcfg['enable'])) { return; } $radiussrvs = captiveportal_get_radius_servers(); /* Read database */ /* NOTE: while this can be simplified in non radius case keep as is for now */ $cpdb = captiveportal_read_db(); $unsetindexes = array(); $voucher_needs_sync = false; /* * Snapshot the time here to use for calculation to speed up the process. * If something is missed next run will catch it! */ $pruning_time = time(); foreach ($cpdb as $cpentry) { $stop_time = $pruning_time; $timedout = false; $term_cause = 1; if (empty($cpentry[11])) { $cpentry[11] = 'first'; } $radiusservers = $radiussrvs[$cpentry[11]]; /* hard timeout? */ if ($timeout) { if (($pruning_time - $cpentry[0]) >= $timeout) { $timedout = true; $term_cause = 5; // Session-Timeout } } /* Session-Terminate-Time */ if (!$timedout && !empty($cpentry[9])) { if ($pruning_time >= $cpentry[9]) { $timedout = true; $term_cause = 5; // Session-Timeout } } /* check if the radius idle_timeout attribute has been set and if its set change the idletimeout to this value */ $uidletimeout = (is_numeric($cpentry[8])) ? $cpentry[8] : $idletimeout; /* if an idle timeout is specified, get last activity timestamp from ipfw */ if (!$timedout && $uidletimeout > 0) { $lastact = captiveportal_get_last_activity($cpentry[2]); /* If the user has logged on but not sent any traffic they will never be logged out. * We "fix" this by setting lastact to the login timestamp. */ $lastact = $lastact ? $lastact : $cpentry[0]; if ($lastact && (($pruning_time - $lastact) >= $uidletimeout)) { $timedout = true; $term_cause = 4; // Idle-Timeout if (!isset($config['captiveportal'][$cpzone]['includeidletime'])) { $stop_time = $lastact; } } } /* if vouchers are configured, activate session timeouts */ if (!$timedout && isset($vcpcfg['enable']) && !empty($cpentry[7])) { if ($pruning_time >= ($cpentry[0] + $cpentry[7])) { $timedout = true; $term_cause = 5; // Session-Timeout $voucher_needs_sync = true; } } /* if radius session_timeout is enabled and the session_timeout is not null, then check if the user should be logged out */ if (!$timedout && isset($cpcfg['radiussession_timeout']) && !empty($cpentry[7])) { if ($pruning_time >= ($cpentry[0] + $cpentry[7])) { $timedout = true; $term_cause = 5; // Session-Timeout } } if ($timedout) { captiveportal_disconnect($cpentry, $radiusservers, $term_cause, $stop_time); captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "TIMEOUT"); $unsetindexes[] = $cpentry[5]; } /* do periodic RADIUS reauthentication? */ if (!$timedout && !empty($radiusservers)) { if (isset($cpcfg['radacct_enable'])) { if (substr($cpcfg['reauthenticateacct'], 0, 9) == "stopstart") { /* stop and restart accounting */ if ($cpcfg['reauthenticateacct'] == "stopstartfreeradius") { $rastart_time = 0; $rastop_time = 60; } else { $rastart_time = $cpentry[0]; $rastop_time = null; } RADIUS_ACCOUNTING_STOP($cpentry[1], // ruleno $cpentry[4], // username $cpentry[5], // sessionid $rastart_time, // start time $radiusservers, $cpentry[2], // clientip $cpentry[3], // clientmac 10, // NAS Request false, // Not an interim request $rastop_time); // Stop Time $clientsn = (is_ipaddrv6($cpentry[2])) ? 128 : 32; pfSense_ipfw_table_zerocnt("{$cpzone}_auth_up", "{$cpentry[2]}/{$clientsn}"); pfSense_ipfw_table_zerocnt("{$cpzone}_auth_down", "{$cpentry[2]}/{$clientsn}"); if ($cpcfg['reauthenticateacct'] == "stopstartfreeradius") { /* Need to pause here or the FreeRADIUS server gets confused about packet ordering. */ sleep(1); } RADIUS_ACCOUNTING_START($cpentry[1], // ruleno $cpentry[4], // username $cpentry[5], // sessionid $radiusservers, $cpentry[2], // clientip $cpentry[3]); // clientmac } else if ($cpcfg['reauthenticateacct'] == "interimupdate") { $session_time = $pruning_time - $cpentry[0]; if (!empty($cpentry[10]) && $cpentry[10] > 60) { $interval = $cpentry[10]; } else { $interval = 0; } $past_interval_min = ($session_time > $interval); if ($interval != 0) { $within_interval = ($session_time % $interval >= 0 && $session_time % $interval <= 59); } if ($interval === 0 || ($interval > 0 && $past_interval_min && $within_interval)) { RADIUS_ACCOUNTING_STOP($cpentry[1], // ruleno $cpentry[4], // username $cpentry[5], // sessionid $cpentry[0], // start time $radiusservers, $cpentry[2], // clientip $cpentry[3], // clientmac 10, // NAS Request true); // Interim Updates } } } /* check this user against RADIUS again */ if (isset($cpcfg['reauthenticate'])) { $auth_list = RADIUS_AUTHENTICATION($cpentry[4], // username base64_decode($cpentry[6]), // password $radiusservers, $cpentry[2], // clientip $cpentry[3], // clientmac $cpentry[1]); // ruleno if ($auth_list['auth_val'] == 3) { captiveportal_disconnect($cpentry, $radiusservers, 17); captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "RADIUS_DISCONNECT", $auth_list['reply_message']); $unsetindexes[] = $cpentry[5]; } else if ($auth_list['auth_val'] == 2) { captiveportal_reapply_attributes($cpentry, $auth_list); } } } } unset($cpdb); captiveportal_prune_old_automac(); if ($voucher_needs_sync == true) { /* Trigger a sync of the vouchers on config */ send_event("service sync vouchers"); } /* write database */ if (!empty($unsetindexes)) { captiveportal_remove_entries($unsetindexes); } } function captiveportal_prune_old_automac() { global $g, $config, $cpzone, $cpzoneid; if (is_array($config['captiveportal'][$cpzone]['passthrumac']) && isset($config['captiveportal'][$cpzone]['passthrumacaddusername'])) { $tmpvoucherdb = array(); $macrules = ""; $writecfg = false; foreach ($config['captiveportal'][$cpzone]['passthrumac'] as $eid => $emac) { if ($emac['logintype'] != "voucher") { continue; } if (isset($config['captiveportal'][$cpzone]['noconcurrentlogins'])) { if (isset($tmpvoucherdb[$emac['username']])) { $temac = $config['captiveportal'][$cpzone]['passthrumac'][$tmpvoucherdb[$emac['username']]]; $pipeno = captiveportal_get_dn_passthru_ruleno($temac['mac']); if ($pipeno) { captiveportal_free_dn_ruleno($pipeno); $macrules .= "table {$cpzone}_pipe_mac delete any,{$temac['mac']}\n"; $macrules .= "table {$cpzone}_pipe_mac delete {$temac['mac']},any\n"; $macrules .= "pipe delete {$pipeno}\n"; ++$pipeno; $macrules .= "pipe delete {$pipeno}\n"; } $writecfg = true; captiveportal_logportalauth($temac['username'], $temac['mac'], $temac['ip'], "DUPLICATE {$temac['username']} LOGIN - TERMINATING OLD SESSION"); unset($config['captiveportal'][$cpzone]['passthrumac'][$tmpvoucherdb[$emac['username']]]); } $tmpvoucherdb[$emac['username']] = $eid; } if (voucher_auth($emac['username']) <= 0) { $pipeno = captiveportal_get_dn_passthru_ruleno($emac['mac']); if ($pipeno) { captiveportal_free_dn_ruleno($pipeno); $macrules .= "table {$cpzone}_pipe_mac delete any,{$emac['mac']}\n"; $macrules .= "table {$cpzone}_pipe_mac delete {$emac['mac']},any\n"; $macrules .= "pipe delete {$pipeno}\n"; ++$pipeno; $macrules .= "pipe delete {$pipeno}\n"; } $writecfg = true; captiveportal_logportalauth($emac['username'], $emac['mac'], $emac['ip'], "EXPIRED {$emac['username']} LOGIN - TERMINATING SESSION"); unset($config['captiveportal'][$cpzone]['passthrumac'][$eid]); } } unset($tmpvoucherdb); if (!empty($macrules)) { @file_put_contents("{$g['tmp_path']}/macentry.prunerules.tmp", $macrules); unset($macrules); mwexec("/sbin/ipfw -q {$g['tmp_path']}/macentry.prunerules.tmp"); } if ($writecfg === true) { write_config("Prune session for auto-added macs"); } } } /* remove a single client according to the DB entry */ function captiveportal_disconnect($dbent, $radiusservers, $term_cause = 1, $stop_time = null) { global $g, $config, $cpzone, $cpzoneid; $stop_time = (empty($stop_time)) ? time() : $stop_time; /* this client needs to be deleted - remove ipfw rules */ if (isset($config['captiveportal'][$cpzone]['radacct_enable']) && !empty($radiusservers)) { if ($config['captiveportal'][$cpzone]['reauthenticateacct'] == "stopstartfreeradius") { /* Interim updates are on so the session time must be reported as the elapsed time since the previous interim update. */ $session_time = ($stop_time - $dbent[0]) % 60; $start_time = $stop_time - $session_time; } else { $start_time = $dbent[0]; } RADIUS_ACCOUNTING_STOP($dbent[1], // ruleno $dbent[4], // username $dbent[5], // sessionid $start_time, // start time $radiusservers, $dbent[2], // clientip $dbent[3], // clientmac $term_cause, // Acct-Terminate-Cause false, $stop_time); } if (is_ipaddr($dbent[2])) { /* * Delete client's ip entry from tables auth_up and auth_down. * * It's not necessary to explicit specify mac address here */ $clientsn = (is_ipaddrv6($dbent[2])) ? 128 : 32; pfSense_ipfw_table("{$cpzone}_auth_up", IP_FW_TABLE_XDEL, "{$dbent[2]}/{$clientsn}"); pfSense_ipfw_table("{$cpzone}_auth_down", IP_FW_TABLE_XDEL, "{$dbent[2]}/{$clientsn}"); /* XXX: Redundant?! Ensure all pf(4) states are killed. */ $_gb = @pfSense_kill_states($dbent[2]); $_gb = @pfSense_kill_srcstates($dbent[2]); } /* * These are the pipe numbers we use to control traffic shaping for each logged in user via captive portal * We could get an error if the pipe doesn't exist but everything should still be fine */ if (!empty($dbent[1])) { $_gb = @pfSense_ipfw_pipe("pipe delete {$dbent[1]}"); $_gb = @pfSense_ipfw_pipe("pipe delete " . ($dbent[1]+1)); /* Release the ruleno so it can be reallocated to new clients. */ captiveportal_free_dn_ruleno($dbent[1]); } // XMLRPC Call over to the master Voucher node if (!empty($config['voucher'][$cpzone]['vouchersyncdbip'])) { $syncip = $config['voucher'][$cpzone]['vouchersyncdbip']; $syncport = $config['voucher'][$cpzone]['vouchersyncport']; $syncpass = $config['voucher'][$cpzone]['vouchersyncpass']; $vouchersyncusername = $config['voucher'][$cpzone]['vouchersyncusername']; $remote_status = xmlrpc_sync_voucher_disconnect($dbent, $syncip, $syncport, $syncpass, $vouchersyncusername, $term_cause, $stop_time); } } /* remove a single client by sessionid */ function captiveportal_disconnect_client($sessionid, $term_cause = 1, $logoutReason = "LOGOUT") { global $g, $config; $sessionid = SQLite3::escapeString($sessionid); $radiusservers = captiveportal_get_radius_servers(); /* read database */ $result = captiveportal_read_db("WHERE sessionid = '{$sessionid}'"); /* find entry */ if (!empty($result)) { captiveportal_write_db("DELETE FROM captiveportal WHERE sessionid = '{$sessionid}'"); foreach ($result as $cpentry) { if (empty($cpentry[11])) { $cpentry[11] = 'first'; } captiveportal_disconnect($cpentry, $radiusservers[$cpentry[11]], $term_cause); captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "DISCONNECT"); } unset($result); } } /* remove all clients */ function captiveportal_disconnect_all($term_cause = 6, $logoutReason = "DISCONNECT") { global $g, $config, $cpzone, $cpzoneid; /* check if we're pruning old entries and eventually wait */ $rcprunelock = try_lock("rcprunecaptiveportal{$cpzone}", 15); /* if we still don't have the lock, unlock forcefully and take it */ if (!$rcprunelock) { log_error("CP zone ${cpzone}: could not obtain the lock for more than 15 seconds, lock taken forcefully to disconnect all users"); unlock_force("rcprunecaptiveportal{$cpzone}"); $rcprunelock = lock("rcprunecaptiveportal{$cpzone}", LOCK_EX); } /* take a lock so new users won't be able to log in */ $cpdblck = lock("captiveportaldb{$cpzone}", LOCK_EX); captiveportal_radius_stop_all($term_cause, $logoutReason); /* remove users from the database */ $cpdb = captiveportal_read_db(); $unsetindexes = array_column($cpdb,5); if (!empty($unsetindexes)) { captiveportal_remove_entries($unsetindexes); } /* reinit ipfw rules */ captiveportal_init_rules(true); unlock($cpdblck); unlock($rcprunelock); } /* send RADIUS acct stop for all current clients */ function captiveportal_radius_stop_all($term_cause = 6, $logoutReason = "DISCONNECT") { global $g, $config, $cpzone, $cpzoneid; $cpdb = captiveportal_read_db(); $radacct = isset($config['captiveportal'][$cpzone]['radacct_enable']) ? true : false; if ($radacct) { $radiusservers = captiveportal_get_radius_servers(); } foreach ($cpdb as $cpentry) { if ($radacct) { if (!empty($radiusservers)) { if (empty($cpentry[11])) { $cpentry[11] = 'first'; } if (!empty($radiusservers[$cpentry[11]])) { RADIUS_ACCOUNTING_STOP($cpentry[1], // ruleno $cpentry[4], // username $cpentry[5], // sessionid $cpentry[0], // start time $radiusservers[$cpentry[11]], $cpentry[2], // clientip $cpentry[3], // clientmac $term_cause); } } } captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], $logoutReason); } unset($cpdb); } function captiveportal_passthrumac_configure_entry($macent, $pipeinrule = false) { global $config, $g, $cpzone; $bwUp = 0; if (!empty($macent['bw_up'])) { $bwUp = $macent['bw_up']; } else if (!empty($config['captiveportal'][$cpzone]['bwdefaultup'])) { $bwUp = $config['captiveportal'][$cpzone]['bwdefaultup']; } $bwDown = 0; if (!empty($macent['bw_down'])) { $bwDown = $macent['bw_down']; } else if (!empty($config['captiveportal'][$cpzone]['bwdefaultdn'])) { $bwDown = $config['captiveportal'][$cpzone]['bwdefaultdn']; } if ($macent['action'] == 'pass') { $rules = ""; $pipeno = captiveportal_get_next_dn_ruleno(); $pipeup = $pipeno; if ($pipeinrule == true) { $_gb = @pfSense_ipfw_pipe("pipe {$pipeno} config bw {$bwUp}Kbit/s queue 100 buckets 16"); } else { $rules .= "pipe {$pipeno} config bw {$bwUp}Kbit/s queue 100 buckets 16\n"; } $pipedown = $pipeno + 1; if ($pipeinrule == true) { $_gb = @pfSense_ipfw_pipe("pipe {$pipedown} config bw {$bwDown}Kbit/s queue 100 buckets 16"); } else { $rules .= "pipe {$pipedown} config bw {$bwDown}Kbit/s queue 100 buckets 16\n"; } $rules .= "table {$cpzone}_pipe_mac add any,{$macent['mac']} {$pipeup}\n"; $rules .= "table {$cpzone}_pipe_mac add {$macent['mac']},any {$pipedown}\n"; } return $rules; } function captiveportal_passthrumac_delete_entry($macent) { $rules = ""; if ($macent['action'] == 'pass') { $pipeno = captiveportal_get_dn_passthru_ruleno($macent['mac']); if (!empty($pipeno)) { captiveportal_free_dn_ruleno($pipeno); $rules .= "table {$cpzone}_pipe_mac delete any,{$macent['mac']}\n"; $rules .= "table {$cpzone}_pipe_mac delete {$macent['mac']},any\n"; $rules .= "pipe delete " . $pipeno . "\n"; $rules .= "pipe delete " . ++$pipeno . "\n"; } } return $rules; } function captiveportal_passthrumac_configure($filename = false, $startindex = 0, $stopindex = 0) { global $config, $g, $cpzone; $rules = ""; if (is_array($config['captiveportal'][$cpzone]['passthrumac'])) { if ($stopindex > 0) { $fd = fopen($filename, "w"); for ($idx = $startindex; $idx <= $stopindex; $idx++) { if (isset($config['captiveportal'][$cpzone]['passthrumac'][$idx])) { $rules = captiveportal_passthrumac_configure_entry($config['captiveportal'][$cpzone]['passthrumac'][$idx]); fwrite($fd, $rules); } } fclose($fd); return; } else { $nentries = count($config['captiveportal'][$cpzone]['passthrumac']); if ($nentries > 2000) { $nloops = $nentries / 1000; $remainder= $nentries % 1000; for ($i = 0; $i < $nloops; $i++) { mwexec_bg("/usr/local/sbin/fcgicli -f /etc/rc.captiveportal_configure_mac -d \"cpzone={$cpzone}&startidx=" . ($i * 1000) . "&stopidx=" . ((($i+1) * 1000) - 1) . "\""); } if ($remainder > 0) { mwexec_bg("/usr/local/sbin/fcgicli -f /etc/rc.captiveportal_configure_mac -d \"cpzone={$cpzone}&startidx=" . ($i * 1000) . "&stopidx=" . (($i* 1000) + $remainder) ."\""); } } else { foreach ($config['captiveportal'][$cpzone]['passthrumac'] as $macent) { $rules .= captiveportal_passthrumac_configure_entry($macent, true); } } } } return $rules; } function captiveportal_passthrumac_findbyname($username) { global $config, $cpzone; if (is_array($config['captiveportal'][$cpzone]['passthrumac'])) { foreach ($config['captiveportal'][$cpzone]['passthrumac'] as $macent) { if ($macent['username'] == $username) { return $macent; } } } return NULL; } /* * table (3=IN)/(4=OUT) hold allowed ip's without bw limits */ function captiveportal_allowedip_configure_entry($ipent, $ishostname = false) { global $g, $config, $cpzone; /* Instead of copying this entire function for something * easy such as hostname vs ip address add this check */ if ($ishostname === true) { if (!platform_booting()) { $ipaddress = gethostbyname($ipent['hostname']); if (!is_ipaddr($ipaddress)) { return; } } else { $ipaddress = ""; } } else { $ipaddress = $ipent['ip']; } $rules = ""; $cp_filterdns_conf = ""; $enBwup = 0; if (!empty($ipent['bw_up'])) { $enBwup = intval($ipent['bw_up']); } else if (!empty($config['captiveportal'][$cpzone]['bwdefaultup'])) { $enBwup = $config['captiveportal'][$cpzone]['bwdefaultup']; } $enBwdown = 0; if (!empty($ipent['bw_down'])) { $enBwdown = intval($ipent['bw_down']); } else if (!empty($config['captiveportal'][$cpzone]['bwdefaultdn'])) { $enBwdown = $config['captiveportal'][$cpzone]['bwdefaultdn']; } $pipeup = captiveportal_get_next_dn_ruleno(); $_gb = @pfSense_ipfw_pipe("pipe {$pipeup} config bw {$enBwup}Kbit/s queue 100 buckets 16"); $pipedown = $pipeup + 1; $_gb = @pfSense_ipfw_pipe("pipe {$pipedown} config bw {$enBwdown}Kbit/s queue 100 buckets 16"); if ($ishostname === true) { $cp_filterdns_conf .= "ipfw {$ipent['hostname']} {$cpzone}_allowed_up pipe {$pipeup}\n"; $cp_filterdns_conf .= "ipfw {$ipent['hostname']} {$cpzone}_allowed_down pipe {$pipedown}\n"; if (!is_ipaddr($ipaddress)) { return array("", $cp_filterdns_conf); } } $subnet = ""; if (!empty($ipent['sn'])) { $subnet = "/{$ipent['sn']}"; } $rules .= "table {$cpzone}_allowed_up add {$ipaddress}{$subnet} {$pipeup}\n"; $rules .= "table {$cpzone}_allowed_down add {$ipaddress}{$subnet} {$pipedown}\n"; if ($ishostname === true) { return array($rules, $cp_filterdns_conf); } else { return $rules; } } function captiveportal_allowedhostname_configure() { global $config, $g, $cpzone, $cpzoneid; $rules = ""; if (!is_array($config['captiveportal'][$cpzone]['allowedhostname'])) { return $rules; } $rules = "\n# captiveportal_allowedhostname_configure()\n"; $cp_filterdns_conf = ""; foreach ($config['captiveportal'][$cpzone]['allowedhostname'] as $hostnameent) { $tmprules = captiveportal_allowedip_configure_entry($hostnameent, true); $rules .= $tmprules[0]; $cp_filterdns_conf .= $tmprules[1]; } $cp_filterdns_filename = "{$g['varetc_path']}/filterdns-{$cpzone}-captiveportal.conf"; @file_put_contents($cp_filterdns_filename, $cp_filterdns_conf); unset($cp_filterdns_conf); return $rules; } function captiveportal_filterdns_configure() { global $config, $g, $cpzone, $cpzoneid; $cp_filterdns_filename = $g['varetc_path'] . "/filterdns-{$cpzone}-captiveportal.conf"; if (isset($config['captiveportal'][$cpzone]['enable']) && is_array($config['captiveportal'][$cpzone]['allowedhostname']) && file_exists($cp_filterdns_filename)) { if (isvalidpid($g['varrun_path'] . "/filterdns-{$cpzone}-cpah.pid")) { sigkillbypid($g['varrun_path'] . "/filterdns-{$cpzone}-cpah.pid", "HUP"); } else { mwexec("/usr/local/sbin/filterdns -p " . "{$g['varrun_path']}/filterdns-{$cpzone}-cpah.pid" . " -i 300 -c {$cp_filterdns_filename} -d 1"); } } else { killbypid("{$g['varrun_path']}/filterdns-{$cpzone}-cpah.pid"); @unlink("{$g['varrun_path']}/filterdns-{$cpzone}-cpah.pid"); } return $rules; } function captiveportal_allowedip_configure() { global $config, $g, $cpzone; $rules = ""; if (is_array($config['captiveportal'][$cpzone]['allowedip'])) { foreach ($config['captiveportal'][$cpzone]['allowedip'] as $ipent) { $rules .= captiveportal_allowedip_configure_entry($ipent); } } return $rules; } /* get last activity timestamp given client IP address */ function captiveportal_get_last_activity($ip) { global $cpzone; /* Reading only from one of the tables is enough of approximation. */ $tables = array("{$cpzone}_allowed_up", "{$cpzone}_auth_up"); foreach ($tables as $table) { $ipfw = pfSense_ipfw_table_lookup($table, $ip); if (is_array($ipfw)) { /* Workaround for #46652 */ if ($ipfw['packets'] > 0) { return $ipfw['timestamp']; } else { return 0; } } } return 0; } function captiveportal_init_radius_servers() { global $config, $g, $cpzone; /* generate radius server database */ if ($config['captiveportal'][$cpzone]['radiusip'] && (!isset($config['captiveportal'][$cpzone]['auth_method']) || $config['captiveportal'][$cpzone]['auth_method'] == "radius")) { $radiusip = $config['captiveportal'][$cpzone]['radiusip']; $radiusip2 = ($config['captiveportal'][$cpzone]['radiusip2']) ? $config['captiveportal'][$cpzone]['radiusip2'] : null; $radiusip3 = ($config['captiveportal'][$cpzone]['radiusip3']) ? $config['captiveportal'][$cpzone]['radiusip3'] : null; $radiusip4 = ($config['captiveportal'][$cpzone]['radiusip4']) ? $config['captiveportal'][$cpzone]['radiusip4'] : null; if ($config['captiveportal'][$cpzone]['radiusport']) { $radiusport = $config['captiveportal'][$cpzone]['radiusport']; } else { $radiusport = 1812; } if ($config['captiveportal'][$cpzone]['radiusacctport']) { $radiusacctport = $config['captiveportal'][$cpzone]['radiusacctport']; } else { $radiusacctport = 1813; } if ($config['captiveportal'][$cpzone]['radiusport2']) { $radiusport2 = $config['captiveportal'][$cpzone]['radiusport2']; } else { $radiusport2 = 1812; } if ($config['captiveportal'][$cpzone]['radiusport3']) { $radiusport3 = $config['captiveportal'][$cpzone]['radiusport3']; } else { $radiusport3 = 1812; } if ($config['captiveportal'][$cpzone]['radiusport4']) { $radiusport4 = $config['captiveportal'][$cpzone]['radiusport4']; } else { $radiusport4 = 1812; } $radiuskey = $config['captiveportal'][$cpzone]['radiuskey']; $radiuskey2 = $config['captiveportal'][$cpzone]['radiuskey2']; $radiuskey3 = $config['captiveportal'][$cpzone]['radiuskey3']; $radiuskey4 = $config['captiveportal'][$cpzone]['radiuskey4']; $cprdsrvlck = lock("captiveportalradius{$cpzone}", LOCK_EX); $fd = @fopen("{$g['vardb_path']}/captiveportal_radius_{$cpzone}.db", "w"); if (!$fd) { captiveportal_syslog("Error: cannot open RADIUS DB file in captiveportal_configure().\n"); unlock($cprdsrvlck); return 1; } if (isset($radiusip)) { fwrite($fd, $radiusip . "," . $radiusport . "," . $radiusacctport . "," . $radiuskey . ",first"); } if (isset($radiusip2)) { fwrite($fd, "\n" . $radiusip2 . "," . $radiusport2 . "," . $radiusacctport . "," . $radiuskey2 . ",first"); } if (isset($radiusip3)) { fwrite($fd, "\n" . $radiusip3 . "," . $radiusport3 . "," . $radiusacctport . "," . $radiuskey3 . ",second"); } if (isset($radiusip4)) { fwrite($fd, "\n" . $radiusip4 . "," . $radiusport4 . "," . $radiusacctport . "," . $radiuskey4 . ",second"); } fclose($fd); unlock($cprdsrvlck); } } /* read RADIUS servers into array */ function captiveportal_get_radius_servers() { global $g, $cpzone; $cprdsrvlck = lock("captiveportalradius{$cpzone}"); if (file_exists("{$g['vardb_path']}/captiveportal_radius_{$cpzone}.db")) { $radiusservers = array(); $cpradiusdb = file("{$g['vardb_path']}/captiveportal_radius_{$cpzone}.db", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); if ($cpradiusdb) { foreach ($cpradiusdb as $cpradiusentry) { $line = trim($cpradiusentry); if ($line) { $radsrv = array(); list($radsrv['ipaddr'], $radsrv['port'], $radsrv['acctport'], $radsrv['key'], $context) = explode(",", $line); } if (empty($context)) { if (!is_array($radiusservers['first'])) { $radiusservers['first'] = array(); } $radiusservers['first'] = $radsrv; } else { if (!is_array($radiusservers[$context])) { $radiusservers[$context] = array(); } $radiusservers[$context][] = $radsrv; } } } unlock($cprdsrvlck); return $radiusservers; } unlock($cprdsrvlck); return false; } /* log successful captive portal authentication to syslog */ /* part of this code from php.net */ function captiveportal_logportalauth($user, $mac, $ip, $status, $message = null) { // Log it if (!$message) { $message = "{$status}: {$user}, {$mac}, {$ip}"; } else { $message = trim($message); $message = "{$status}: {$user}, {$mac}, {$ip}, {$message}"; } captiveportal_syslog($message); } /* log simple messages to syslog */ function captiveportal_syslog($message) { global $cpzone; $message = trim($message); $message = "Zone: {$cpzone} - {$message}"; openlog("logportalauth", LOG_PID, LOG_LOCAL4); // Log it syslog(LOG_INFO, $message); closelog(); } function radius($username, $password, $clientip, $clientmac, $type, $radiusctx = null) { global $g, $config, $cpzoneid; $pipeno = captiveportal_get_next_dn_ruleno(); /* If the pool is empty, return appropriate message and fail authentication */ if (empty($pipeno)) { $auth_list = array(); $auth_list['auth_val'] = 1; $auth_list['error'] = "System reached maximum login capacity"; return $auth_list; } $radiusservers = captiveportal_get_radius_servers(); if (is_null($radiusctx)) { $radiusctx = 'first'; } $auth_list = RADIUS_AUTHENTICATION($username, $password, $radiusservers[$radiusctx], $clientip, $clientmac, $pipeno); if ($auth_list['auth_val'] == 2) { captiveportal_logportalauth($username, $clientmac, $clientip, $type); $sessionid = portal_allow($clientip, $clientmac, $username, $password, $auth_list, $pipeno, $radiusctx); } else { captiveportal_free_dn_ruleno($pipeno); } return $auth_list; } function captiveportal_opendb() { global $g, $config, $cpzone, $cpzoneid; $db_path = "{$g['vardb_path']}/captiveportal{$cpzone}.db"; $createquery = "CREATE TABLE IF NOT EXISTS captiveportal (" . "allow_time INTEGER, pipeno INTEGER, ip TEXT, mac TEXT, username TEXT, " . "sessionid TEXT, bpassword TEXT, session_timeout INTEGER, idle_timeout INTEGER, " . "session_terminate_time INTEGER, interim_interval INTEGER, radiusctx TEXT); " . "CREATE UNIQUE INDEX IF NOT EXISTS idx_active ON captiveportal (sessionid, username); " . "CREATE INDEX IF NOT EXISTS user ON captiveportal (username); " . "CREATE INDEX IF NOT EXISTS ip ON captiveportal (ip); " . "CREATE INDEX IF NOT EXISTS starttime ON captiveportal (allow_time)"; try { $DB = new SQLite3($db_path); $DB->busyTimeout(60000); } catch (Exception $e) { captiveportal_syslog("Could not open {$db_path} as an sqlite database for {$cpzone}. Error message: " . $e->getMessage() . " -- Trying again."); unlink_if_exists($db_path); try { $DB = new SQLite3($db_path); $DB->busyTimeout(60000); } catch (Exception $e) { captiveportal_syslog("Still could not open {$db_path} as an sqlite database for {$cpzone}. Error message: " . $e->getMessage() . " -- Remove the database file manually and ensure there is enough free space."); return; } } if (!$DB) { captiveportal_syslog("Could not open {$db_path} as an sqlite database for {$cpzone}. Error message: {$DB->lastErrorMsg()}. Trying again."); unlink_if_exists($db_path); $DB = new SQLite3($db_path); $DB->busyTimeout(60000); if (!$DB) { captiveportal_syslog("Still could not open {$db_path} as an sqlite database for {$cpzone}. Error message: {$DB->lastErrorMsg()}. Remove the database file manually and ensure there is enough free space."); return; } } if (! $DB->exec($createquery)) { captiveportal_syslog("Error during table {$cpzone} creation. Error message: {$DB->lastErrorMsg()}. Resetting and trying again."); /* If unable to initialize the database, reset and try again. */ $DB->close(); unset($DB); unlink_if_exists($db_path); $DB = new SQLite3($db_path); $DB->busyTimeout(60000); if ($DB->exec($createquery)) { captiveportal_syslog("Successfully reinitialized tables for {$cpzone} -- database has been reset."); if (!is_numericint($cpzoneid)) { if (is_array($config['captiveportal'])) { foreach ($config['captiveportal'] as $cpkey => $cp) { if ($cpzone == $cpkey) { $cpzoneid = $cp['zoneid']; } } } } if (is_numericint($cpzoneid)) { $table_names = captiveportal_get_ipfw_table_names(); foreach ($table_names as $table_name) { mwexec("/sbin/ipfw table {$table_name} flush"); } captiveportal_syslog("Flushed tables for {$cpzone} after database reset."); } } else { captiveportal_syslog("Still unable to create tables for {$cpzone}. Error message: {$DB->lastErrorMsg()}. Remove the database file manually and try again."); } } return $DB; } /* Get all tables for specific cpzone */ function captiveportal_get_ipfw_table_names() { global $cpzone; $result = array(); $tables = pfSense_ipfw_tables_list(); if (!is_array($tables)) { return $result; } $len = strlen($cpzone) + 1; foreach ($tables as $table) { if (substr($table['name'], 0, $len) != $cpzone . '_') { continue; } $result[] = $table['name']; } return $result; } /* read captive portal DB into array */ function captiveportal_read_db($query = "") { $cpdb = array(); $DB = captiveportal_opendb(); if ($DB) { $response = $DB->query("SELECT * FROM captiveportal {$query}"); if ($response != FALSE) { while ($row = $response->fetchArray()) { $cpdb[] = $row; } } $DB->close(); } return $cpdb; } function captiveportal_remove_entries($remove) { if (!is_array($remove) || empty($remove)) { return; } $query = "DELETE FROM captiveportal WHERE sessionid in ("; foreach ($remove as $idx => $unindex) { $query .= "'{$unindex}'"; if ($idx < (count($remove) - 1)) { $query .= ","; } } $query .= ")"; captiveportal_write_db($query); } /* write captive portal DB */ function captiveportal_write_db($queries) { global $g; if (is_array($queries)) { $query = implode(";", $queries); } else { $query = $queries; } $DB = captiveportal_opendb(); if ($DB) { $DB->exec("BEGIN TRANSACTION"); $result = $DB->exec($query); if (!$result) { captiveportal_syslog("Trying to modify DB returned error: {$DB->lastErrorMsg()}"); } else { $DB->exec("END TRANSACTION"); } $DB->close(); return $result; } else { return true; } } function captiveportal_write_elements() { global $g, $config, $cpzone; $cpcfg = $config['captiveportal'][$cpzone]; if (!is_dir($g['captiveportal_element_path'])) { @mkdir($g['captiveportal_element_path']); } if (is_array($cpcfg['element'])) { foreach ($cpcfg['element'] as $data) { /* Do not attempt to decode or write out empty files. */ if (empty($data['content']) || empty(base64_decode($data['content']))) { unlink_if_exists("{$g['captiveportal_element_path']}/{$data['name']}"); touch("{$g['captiveportal_element_path']}/{$data['name']}"); } elseif (!@file_put_contents("{$g['captiveportal_element_path']}/{$data['name']}", base64_decode($data['content']))) { printf(gettext('Error: cannot open \'%1$s\' in captiveportal_write_elements()%2$s'), $data['name'], "\n"); return 1; } if (!file_exists("{$g['captiveportal_path']}/{$data['name']}")) { @symlink("{$g['captiveportal_element_path']}/{$data['name']}", "{$g['captiveportal_path']}/{$data['name']}"); } } } return 0; } function captiveportal_free_dnrules($rulenos_start = 2000, $rulenos_range_max = 64500) { global $g, $cpzone; $removed_pipes = array(); $cpruleslck = lock("captiveportalrulesdn", LOCK_EX); if (file_exists("{$g['vardb_path']}/captiveportaldn.rules")) { $rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportaldn.rules")); $ridx = $rulenos_start; while ($ridx < $rulenos_range_max) { if ($rules[$ridx] == $cpzone) { $rules[$ridx] = false; $removed_pipes[] = $ridx; $ridx++; $rules[$ridx] = false; $removed_pipes[] = $ridx; $ridx++; } else { $ridx += 2; } } file_put_contents("{$g['vardb_path']}/captiveportaldn.rules", serialize($rules)); unset($rules); } unlock($cpruleslck); return $removed_pipes; } function captiveportal_get_next_dn_ruleno($rulenos_start = 2000, $rulenos_range_max = 64500) { global $config, $g, $cpzone; $cpruleslck = lock("captiveportalrulesdn", LOCK_EX); $ruleno = 0; if (file_exists("{$g['vardb_path']}/captiveportaldn.rules")) { $rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportaldn.rules")); $ridx = $rulenos_start; while ($ridx < $rulenos_range_max) { if (empty($rules[$ridx])) { $ruleno = $ridx; $rules[$ridx] = $cpzone; $ridx++; $rules[$ridx] = $cpzone; break; } else { $ridx += 2; } } } else { $rules = array_pad(array(), $rulenos_range_max, false); $ruleno = $rulenos_start; $rules[$rulenos_start] = $cpzone; $rulenos_start++; $rules[$rulenos_start] = $cpzone; } file_put_contents("{$g['vardb_path']}/captiveportaldn.rules", serialize($rules)); unlock($cpruleslck); unset($rules); return $ruleno; } function captiveportal_free_dn_ruleno($ruleno) { global $config, $g; $cpruleslck = lock("captiveportalrulesdn", LOCK_EX); if (file_exists("{$g['vardb_path']}/captiveportaldn.rules")) { $rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportaldn.rules")); $rules[$ruleno] = false; $ruleno++; $rules[$ruleno] = false; file_put_contents("{$g['vardb_path']}/captiveportaldn.rules", serialize($rules)); unset($rules); } unlock($cpruleslck); } function captiveportal_get_dn_passthru_ruleno($value) { global $config, $g, $cpzone, $cpzoneid; $cpcfg = $config['captiveportal'][$cpzone]; if (!isset($cpcfg['enable'])) { return NULL; } $cpruleslck = lock("captiveportalrulesdn", LOCK_EX); $ruleno = NULL; if (file_exists("{$g['vardb_path']}/captiveportaldn.rules")) { unset($output); $item = pfSense_ipfw_table_lookup("{$cpzone}_pipe_mac", "any,{$value}"); if (!is_array($item) || empty($item['pipe'])) { unlock($cpruleslck); return NULL; } $ruleno = intval($item['pipe']); $rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportaldn.rules")); if (!$rules[$ruleno]) { $ruleno = NULL; } unset($rules); } unlock($cpruleslck); return $ruleno; } /** * This function will calculate the traffic produced by a client * based on its firewall rule * * Point of view: NAS * * Input means: from the client * Output means: to the client * */ function getVolume($ip) { global $config, $cpzone; $reverse = isset($config['captiveportal'][$cpzone]['reverseacct']) ? true : false; $volume = array(); // Initialize vars properly, since we don't want NULL vars $volume['input_pkts'] = $volume['input_bytes'] = 0; $volume['output_pkts'] = $volume['output_bytes'] = 0; $tables = array("allowed", "auth"); foreach($tables as $table) { $ipfw = pfSense_ipfw_table_lookup("{$cpzone}_{$table}_up", $ip); if (!is_array($ipfw)) { continue; } if ($reverse) { $volume['output_pkts'] = $ipfw['packets']; $volume['output_bytes'] = $ipfw['bytes']; } else { $volume['input_pkts'] = $ipfw['packets']; $volume['input_bytes'] = $ipfw['bytes']; } } foreach($tables as $table) { $ipfw = pfSense_ipfw_table_lookup("{$cpzone}_{$table}_down", $ip); if (!is_array($ipfw)) { continue; } if ($reverse) { $volume['input_pkts'] = $ipfw['packets']; $volume['input_bytes'] = $ipfw['bytes']; } else { $volume['output_pkts'] = $ipfw['packets']; $volume['output_bytes'] = $ipfw['bytes']; } } return $volume; } /** * Get the NAS-IP-Address based on the current wan address * * Use functions in interfaces.inc to find this out * */ function getNasIP() { global $config, $cpzone; if (empty($config['captiveportal'][$cpzone]['radiussrcip_attribute'])) { $nasIp = get_interface_ip(); } else { if (is_ipaddr($config['captiveportal'][$cpzone]['radiussrcip_attribute'])) { $nasIp = $config['captiveportal'][$cpzone]['radiussrcip_attribute']; } else { $nasIp = get_interface_ip($config['captiveportal'][$cpzone]['radiussrcip_attribute']); } } if (!is_ipaddr($nasIp)) { $nasIp = "0.0.0.0"; } return $nasIp; } function portal_ip_from_client_ip($cliip) { global $config, $cpzone; $isipv6 = is_ipaddrv6($cliip); $interfaces = explode(",", $config['captiveportal'][$cpzone]['interface']); foreach ($interfaces as $cpif) { if ($isipv6) { $ip = get_interface_ipv6($cpif); $sn = get_interface_subnetv6($cpif); } else { $ip = get_interface_ip($cpif); $sn = get_interface_subnet($cpif); } if (ip_in_subnet($cliip, "{$ip}/{$sn}")) { return $ip; } } $inet = ($isipv6) ? '-inet6' : '-inet'; $iface = exec_command("/sbin/route -n get {$inet} {$cliip} | /usr/bin/awk '/interface/ { print \$2; };'"); $iface = trim($iface, "\n"); if (!empty($iface)) { $ip = ($isipv6) ? find_interface_ipv6($iface) : find_interface_ip($iface); if (is_ipaddr($ip)) { return $ip; } } // doesn't match up to any particular interface // so let's set the portal IP to what PHP says // the server IP issuing the request is. // allows same behavior as 1.2.x where IP isn't // in the subnet of any CP interface (static routes, etc.) // rather than forcing to DNS hostname resolution $ip = $_SERVER['SERVER_ADDR']; if (is_ipaddr($ip)) { return $ip; } return false; } function portal_hostname_from_client_ip($cliip) { global $config, $cpzone; $cpcfg = $config['captiveportal'][$cpzone]; if (isset($cpcfg['httpslogin'])) { $listenporthttps = $cpcfg['listenporthttps'] ? $cpcfg['listenporthttps'] : ($cpcfg['zoneid'] + 8001); $ourhostname = $cpcfg['httpsname']; if ($listenporthttps != 443) { $ourhostname .= ":" . $listenporthttps; } } else { $listenporthttp = $cpcfg['listenporthttp'] ? $cpcfg['listenporthttp'] : ($cpcfg['zoneid'] + 8000); $ifip = portal_ip_from_client_ip($cliip); if (!$ifip) { $ourhostname = "{$config['system']['hostname']}.{$config['system']['domain']}"; } else { $ourhostname = (is_ipaddrv6($ifip)) ? "[{$ifip}]" : "{$ifip}"; } if ($listenporthttp != 80) { $ourhostname .= ":" . $listenporthttp; } } return $ourhostname; } /* functions move from index.php */ function portal_reply_page($redirurl, $type = null, $message = null, $clientmac = null, $clientip = null, $username = null, $password = null) { global $g, $config, $cpzone; /* Get captive portal layout */ if ($type == "redir") { header("Location: {$redirurl}"); return; } else if ($type == "login") { $htmltext = get_include_contents("{$g['varetc_path']}/captiveportal_{$cpzone}.html"); } else { $htmltext = get_include_contents("{$g['varetc_path']}/captiveportal-{$cpzone}-error.html"); } $cpcfg = $config['captiveportal'][$cpzone]; /* substitute the PORTAL_REDIRURL variable */ if ($cpcfg['preauthurl']) { $htmltext = str_replace("\$PORTAL_REDIRURL\$", "{$cpcfg['preauthurl']}", $htmltext); $htmltext = str_replace("#PORTAL_REDIRURL#", "{$cpcfg['preauthurl']}", $htmltext); } /* substitute other variables */ $ourhostname = portal_hostname_from_client_ip($clientip); $protocol = (isset($cpcfg['httpslogin'])) ? 'https://' : 'http://'; $htmltext = str_replace("\$PORTAL_ACTION\$", "{$protocol}{$ourhostname}/index.php?zone={$cpzone}", $htmltext); $htmltext = str_replace("#PORTAL_ACTION#", "{$protocol}{$ourhostname}/index.php?zone={$cpzone}", $htmltext); $htmltext = str_replace("\$PORTAL_ZONE\$", htmlspecialchars($cpzone), $htmltext); $htmltext = str_replace("\$PORTAL_REDIRURL\$", htmlspecialchars($redirurl), $htmltext); $htmltext = str_replace("\$PORTAL_MESSAGE\$", htmlspecialchars($message), $htmltext); $htmltext = str_replace("\$CLIENT_MAC\$", htmlspecialchars($clientmac), $htmltext); $htmltext = str_replace("\$CLIENT_IP\$", htmlspecialchars($clientip), $htmltext); // Special handling case for captive portal master page so that it can be ran // through the PHP interpreter using the include method above. We convert the // $VARIABLE$ case to #VARIABLE# in /etc/inc/captiveportal.inc before writing out. $htmltext = str_replace("#PORTAL_ZONE#", htmlspecialchars($cpzone), $htmltext); $htmltext = str_replace("#PORTAL_REDIRURL#", htmlspecialchars($redirurl), $htmltext); $htmltext = str_replace("#PORTAL_MESSAGE#", htmlspecialchars($message), $htmltext); $htmltext = str_replace("#CLIENT_MAC#", htmlspecialchars($clientmac), $htmltext); $htmltext = str_replace("#CLIENT_IP#", htmlspecialchars($clientip), $htmltext); $htmltext = str_replace("#USERNAME#", htmlspecialchars($username), $htmltext); $htmltext = str_replace("#PASSWORD#", htmlspecialchars($password), $htmltext); echo $htmltext; } function portal_mac_radius($clientmac, $clientip) { global $config, $cpzone; $radmac_secret = $config['captiveportal'][$cpzone]['radmac_secret']; /* authentication against the radius server */ $username = mac_format($clientmac); $auth_list = radius($username, $radmac_secret, $clientip, $clientmac, "MACHINE LOGIN"); if ($auth_list['auth_val'] == 2) { return TRUE; } if (!empty($auth_list['url_redirection'])) { portal_reply_page($auth_list['url_redirection'], "redir"); } return FALSE; } function captiveportal_reapply_attributes($cpentry, $attributes) { global $config, $cpzone, $g; if (isset($config['captiveportal'][$cpzone]['peruserbw'])) { $dwfaultbw_up = !empty($config['captiveportal'][$cpzone]['bwdefaultup']) ? $config['captiveportal'][$cpzone]['bwdefaultup'] : 0; $dwfaultbw_down = !empty($config['captiveportal'][$cpzone]['bwdefaultdn']) ? $config['captiveportal'][$cpzone]['bwdefaultdn'] : 0; } else { $dwfaultbw_up = $dwfaultbw_down = 0; } $bw_up = !empty($attributes['bw_up']) ? round(intval($attributes['bw_up'])/1000, 2) : $dwfaultbw_up; $bw_down = !empty($attributes['bw_down']) ? round(intval($attributes['bw_down'])/1000, 2) : $dwfaultbw_down; $bw_up_pipeno = $cpentry[1]; $bw_down_pipeno = $cpentry[1]+1; $_gb = @pfSense_ipfw_pipe("pipe {$bw_up_pipeno} config bw {$bw_up}Kbit/s queue 100 buckets 16"); $_gb = @pfSense_ipfw_pipe("pipe {$bw_down_pipeno} config bw {$bw_down}Kbit/s queue 100 buckets 16"); //captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "RADIUS_BANDWIDTH_REAPPLY", "{$bw_up}/{$bw_down}"); unset($bw_up_pipeno, $bw_down_pipeno, $bw_up, $bw_down); } function portal_allow($clientip, $clientmac, $username, $password = null, $attributes = null, $pipeno = null, $radiusctx = null) { global $redirurl, $g, $config, $type, $passthrumac, $_POST, $cpzone, $cpzoneid; // Ensure we create an array if we are missing attributes if (!is_array($attributes)) { $attributes = array(); } unset($sessionid); /* Do not allow concurrent login execution. */ $cpdblck = lock("captiveportaldb{$cpzone}", LOCK_EX); if ($attributes['voucher']) { $remaining_time = $attributes['session_timeout']; // Set RADIUS-Attribute to Voucher to prevent ReAuth-Reqeuest for Vouchers Bug: #2155 $radiusctx="voucher"; } $writecfg = false; /* Find an existing session */ if ((isset($config['captiveportal'][$cpzone]['noconcurrentlogins'])) && $passthrumac && isset($config['captiveportal'][$cpzone]['passthrumacadd'])) { $mac = captiveportal_passthrumac_findbyname($username); if (!empty($mac) && $_POST['replacemacpassthru']) { foreach ($config['captiveportal'][$cpzone]['passthrumac'] as $idx => $macent) { if ($macent['mac'] != $mac['mac']) { continue; } $macrules = ""; $pipeno = captiveportal_get_dn_passthru_ruleno($mac['mac']); if ($pipeno) { captiveportal_free_dn_ruleno($pipeno); $macrules .= "table {$cpzone}_pipe_mac delete any,{$mac['mac']}\n"; $macrules .= "table {$cpzone}_pipe_mac delete {$mac['mac']},any\n"; $macrules .= "pipe delete {$pipeno}\n"; ++$pipeno; $macrules .= "pipe delete {$pipeno}\n"; } unset($config['captiveportal'][$cpzone]['passthrumac'][$idx]); $mac['action'] = 'pass'; $mac['mac'] = $clientmac; $config['captiveportal'][$cpzone]['passthrumac'][] = $mac; $macrules .= captiveportal_passthrumac_configure_entry($mac); file_put_contents("{$g['tmp_path']}/macentry_{$cpzone}.rules.tmp", $macrules); mwexec("/sbin/ipfw -q {$g['tmp_path']}/macentry_{$cpzone}.rules.tmp"); $writecfg = true; $sessionid = true; break; } } elseif (!empty($mac)) { portal_reply_page($redirurl, "error", "Username: {$username} is already authenticated using another MAC address.", $clientmac, $clientip, $username, $password); unlock($cpdblck); return; } } /* read in client database */ $query = "WHERE ip = '{$clientip}'"; $tmpusername = SQLite3::escapeString(strtolower($username)); if (isset($config['captiveportal'][$cpzone]['noconcurrentlogins'])) { $query .= " OR (username != 'unauthenticated' AND lower(username) = '{$tmpusername}')"; } $cpdb = captiveportal_read_db($query); /* Snapshot the timestamp */ $allow_time = time(); $radiusservers = captiveportal_get_radius_servers(); $unsetindexes = array(); if (is_null($radiusctx)) { $radiusctx = 'first'; } foreach ($cpdb as $cpentry) { if (empty($cpentry[11])) { $cpentry[11] = 'first'; } /* on the same ip */ if ($cpentry[2] == $clientip) { if (isset($config['captiveportal'][$cpzone]['nomacfilter']) || $cpentry[3] == $clientmac) { captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "CONCURRENT LOGIN - REUSING OLD SESSION"); } else { captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "CONCURRENT LOGIN - REUSING IP {$cpentry[2]} WITH DIFFERENT MAC ADDRESS {$cpentry[3]}"); } $sessionid = $cpentry[5]; break; } elseif (($attributes['voucher']) && ($username != 'unauthenticated') && ($cpentry[4] == $username)) { // user logged in with an active voucher. Check for how long and calculate // how much time we can give him (voucher credit - used time) $remaining_time = $cpentry[0] + $cpentry[7] - $allow_time; if ($remaining_time < 0) { // just in case. $remaining_time = 0; } /* This user was already logged in so we disconnect the old one */ captiveportal_disconnect($cpentry, $radiusservers[$cpentry[11]], 13); captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "CONCURRENT LOGIN - TERMINATING OLD SESSION"); $unsetindexes[] = $cpentry[5]; break; } elseif ((isset($config['captiveportal'][$cpzone]['noconcurrentlogins'])) && ($username != 'unauthenticated')) { /* on the same username */ if (strcasecmp($cpentry[4], $username) == 0) { /* This user was already logged in so we disconnect the old one */ captiveportal_disconnect($cpentry, $radiusservers[$cpentry[11]], 13); captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "CONCURRENT LOGIN - TERMINATING OLD SESSION"); $unsetindexes[] = $cpentry[5]; break; } } } unset($cpdb); if (!empty($unsetindexes)) { captiveportal_remove_entries($unsetindexes); } if ($attributes['voucher'] && $remaining_time <= 0) { return 0; // voucher already used and no time left } if (!isset($sessionid)) { /* generate unique session ID */ $tod = gettimeofday(); $sessionid = substr(md5(mt_rand() . $tod['sec'] . $tod['usec'] . $clientip . $clientmac), 0, 16); if (isset($config['captiveportal'][$cpzone]['peruserbw'])) { $dwfaultbw_up = !empty($config['captiveportal'][$cpzone]['bwdefaultup']) ? $config['captiveportal'][$cpzone]['bwdefaultup'] : 0; $dwfaultbw_down = !empty($config['captiveportal'][$cpzone]['bwdefaultdn']) ? $config['captiveportal'][$cpzone]['bwdefaultdn'] : 0; } else { $dwfaultbw_up = $dwfaultbw_down = 0; } $bw_up = !empty($attributes['bw_up']) ? round(intval($attributes['bw_up'])/1000, 2) : $dwfaultbw_up; $bw_down = !empty($attributes['bw_down']) ? round(intval($attributes['bw_down'])/1000, 2) : $dwfaultbw_down; if ($passthrumac) { $mac = array(); $mac['action'] = 'pass'; $mac['mac'] = $clientmac; $mac['ip'] = $clientip; /* Used only for logging */ if (isset($config['captiveportal'][$cpzone]['passthrumacaddusername'])) { $mac['username'] = $username; if ($attributes['voucher']) { $mac['logintype'] = "voucher"; } } if ($username == "unauthenticated") { $mac['descr'] = "Auto-added"; } else { $mac['descr'] = "Auto-added for user {$username}"; } if (!empty($bw_up)) { $mac['bw_up'] = $bw_up; } if (!empty($bw_down)) { $mac['bw_down'] = $bw_down; } if (!is_array($config['captiveportal'][$cpzone]['passthrumac'])) { $config['captiveportal'][$cpzone]['passthrumac'] = array(); } $config['captiveportal'][$cpzone]['passthrumac'][] = $mac; unlock($cpdblck); $macrules = captiveportal_passthrumac_configure_entry($mac); file_put_contents("{$g['tmp_path']}/macentry_{$cpzone}.rules.tmp", $macrules); mwexec("/sbin/ipfw -q {$g['tmp_path']}/macentry_{$cpzone}.rules.tmp"); $writecfg = true; } else { /* See if a pipeno is passed, if not start sessions because this means there isn't one atm */ if (is_null($pipeno)) { $pipeno = captiveportal_get_next_dn_ruleno(); } /* if the pool is empty, return appropriate message and exit */ if (is_null($pipeno)) { portal_reply_page($redirurl, "error", "System reached maximum login capacity"); log_error("Zone: {$cpzone} - WARNING! Captive portal has reached maximum login capacity"); unlock($cpdblck); return; } $bw_up_pipeno = $pipeno; $bw_down_pipeno = $pipeno + 1; //$bw_up /= 1000; // Scale to Kbit/s $_gb = @pfSense_ipfw_pipe("pipe {$bw_up_pipeno} config bw {$bw_up}Kbit/s queue 100 buckets 16"); $_gb = @pfSense_ipfw_pipe("pipe {$bw_down_pipeno} config bw {$bw_down}Kbit/s queue 100 buckets 16"); $rule_entry = "{$clientip}/" . (is_ipaddrv6($clientip) ? "128" : "32"); $_gb = @pfSense_ipfw_table("{$cpzone}_auth_down", IP_FW_TABLE_XADD, "{$rule_entry}", $bw_down_pipeno); /* Add MAC address on UP rule only */ if (!isset($config['captiveportal'][$cpzone]['nomacfilter'])) { $rule_entry .= ",{$clientmac}"; } $_gb = @pfSense_ipfw_table("{$cpzone}_auth_up", IP_FW_TABLE_XADD, "{$rule_entry}", $bw_up_pipeno); if ($attributes['voucher']) { $attributes['session_timeout'] = $remaining_time; } /* handle empty attributes */ $session_timeout = (!empty($attributes['session_timeout'])) ? $attributes['session_timeout'] : 'NULL'; $idle_timeout = (!empty($attributes['idle_timeout'])) ? $attributes['idle_timeout'] : 'NULL'; $session_terminate_time = (!empty($attributes['session_terminate_time'])) ? $attributes['session_terminate_time'] : 'NULL'; $interim_interval = (!empty($attributes['interim_interval'])) ? $attributes['interim_interval'] : 'NULL'; /* escape username */ $safe_username = SQLite3::escapeString($username); /* encode password in Base64 just in case it contains commas */ $bpassword = (isset($config['captiveportal'][$cpzone]['reauthenticate'])) ? base64_encode($password) : ''; $insertquery = "INSERT INTO captiveportal (allow_time, pipeno, ip, mac, username, sessionid, bpassword, session_timeout, idle_timeout, session_terminate_time, interim_interval, radiusctx) "; $insertquery .= "VALUES ({$allow_time}, {$pipeno}, '{$clientip}', '{$clientmac}', '{$safe_username}', '{$sessionid}', '{$bpassword}', "; $insertquery .= "{$session_timeout}, {$idle_timeout}, {$session_terminate_time}, {$interim_interval}, '{$radiusctx}')"; /* store information to database */ captiveportal_write_db($insertquery); unlock($cpdblck); unset($insertquery, $bpassword); if (isset($config['captiveportal'][$cpzone]['radacct_enable']) && !empty($radiusservers[$radiusctx])) { $acct_val = RADIUS_ACCOUNTING_START($pipeno, $username, $sessionid, $radiusservers[$radiusctx], $clientip, $clientmac); if ($acct_val == 1) { captiveportal_logportalauth($username, $clientmac, $clientip, $type, "RADIUS ACCOUNTING FAILED"); } } } } else { /* NOTE: #3062-11 If the pipeno has been allocated free it to not DoS the CP and maintain proper operation as in radius() case */ if (!is_null($pipeno)) { captiveportal_free_dn_ruleno($pipeno); } unlock($cpdblck); } if ($writecfg == true) { write_config(gettext("Captive Portal allowed users configuration changed")); } /* redirect user to desired destination */ if (!empty($attributes['url_redirection'])) { $my_redirurl = $attributes['url_redirection']; } else if (!empty($redirurl)) { $my_redirurl = $redirurl; } else if (!empty($config['captiveportal'][$cpzone]['redirurl'])) { $my_redirurl = $config['captiveportal'][$cpzone]['redirurl']; } if (isset($config['captiveportal'][$cpzone]['logoutwin_enable']) && !$passthrumac) { $ourhostname = portal_hostname_from_client_ip($clientip); $protocol = (isset($config['captiveportal'][$cpzone]['httpslogin'])) ? 'https://' : 'http://'; $logouturl = "{$protocol}{$ourhostname}/"; if (isset($attributes['reply_message'])) { $message = $attributes['reply_message']; } else { $message = 0; } include_once("{$g['varetc_path']}/captiveportal-{$cpzone}-logout.html"); } else { portal_reply_page($my_redirurl, "redir", "Just redirect the user."); } return $sessionid; } /* * Used for when pass-through credits are enabled. * Returns true when there was at least one free login to deduct for the MAC. * Expired entries are removed as they are seen. * Active entries are updated according to the configuration. */ function portal_consume_passthrough_credit($clientmac) { global $config, $cpzone; if (!empty($config['captiveportal'][$cpzone]['freelogins_count']) && is_numeric($config['captiveportal'][$cpzone]['freelogins_count'])) { $freeloginscount = $config['captiveportal'][$cpzone]['freelogins_count']; } else { return false; } if (!empty($config['captiveportal'][$cpzone]['freelogins_resettimeout']) && is_numeric($config['captiveportal'][$cpzone]['freelogins_resettimeout'])) { $resettimeout = $config['captiveportal'][$cpzone]['freelogins_resettimeout']; } else { return false; } if ($freeloginscount < 1 || $resettimeout <= 0 || !$clientmac) { return false; } $updatetimeouts = isset($config['captiveportal'][$cpzone]['freelogins_updatetimeouts']); /* * Read database of used MACs. Lines are a comma-separated list * of the time, MAC, then the count of pass-through credits remaining. */ $usedmacs = captiveportal_read_usedmacs_db(); $currenttime = time(); $found = false; foreach ($usedmacs as $key => $usedmac) { $usedmac = explode(",", $usedmac); if ($usedmac[1] == $clientmac) { if ($usedmac[0] + ($resettimeout * 3600) > $currenttime) { if ($usedmac[2] < 1) { if ($updatetimeouts) { $usedmac[0] = $currenttime; unset($usedmacs[$key]); $usedmacs[] = implode(",", $usedmac); captiveportal_write_usedmacs_db($usedmacs); } return false; } else { $usedmac[2] -= 1; $usedmacs[$key] = implode(",", $usedmac); } $found = true; } else { unset($usedmacs[$key]); } break; } else if ($usedmac[0] + ($resettimeout * 3600) <= $currenttime) { unset($usedmacs[$key]); } } if (!$found) { $usedmac = array($currenttime, $clientmac, $freeloginscount - 1); $usedmacs[] = implode(",", $usedmac); } captiveportal_write_usedmacs_db($usedmacs); return true; } function captiveportal_read_usedmacs_db() { global $g, $cpzone; $cpumaclck = lock("captiveusedmacs{$cpzone}"); if (file_exists("{$g['vardb_path']}/captiveportal_usedmacs_{$cpzone}.db")) { $usedmacs = file("{$g['vardb_path']}/captiveportal_usedmacs_{$cpzone}.db", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); if (!$usedmacs) { $usedmacs = array(); } } else { $usedmacs = array(); } unlock($cpumaclck); return $usedmacs; } function captiveportal_write_usedmacs_db($usedmacs) { global $g, $cpzone; $cpumaclck = lock("captiveusedmacs{$cpzone}", LOCK_EX); @file_put_contents("{$g['vardb_path']}/captiveportal_usedmacs_{$cpzone}.db", implode("\n", $usedmacs)); unlock($cpumaclck); } function captiveportal_blocked_mac($mac) { global $config, $g, $cpzone; if (empty($mac) || !is_macaddr($mac)) { return false; } if (!is_array($config['captiveportal'][$cpzone]['passthrumac'])) { return false; } foreach ($config['captiveportal'][$cpzone]['passthrumac'] as $passthrumac) { if (($passthrumac['action'] == 'block') && ($passthrumac['mac'] == strtolower($mac))) { return true; } } return false; } function captiveportal_send_server_accounting($off = false) { global $cpzone, $config; if (!isset($config['captiveportal'][$cpzone]['radacct_enable'])) { return; } if ($off) { $racct = new Auth_RADIUS_Acct_Off; } else { $racct = new Auth_RADIUS_Acct_On; } $radiusservers = captiveportal_get_radius_servers(); if (empty($radiusservers)) { return; } foreach ($radiusservers['first'] as $radsrv) { // Add a new server to our instance $racct->addServer($radsrv['ipaddr'], $radsrv['acctport'], $radsrv['key']); } if (PEAR::isError($racct->start())) { $retvalue['acct_val'] = 1; $retvalue['error'] = $racct->getMessage(); // If we encounter an error immediately stop this function and go back $racct->close(); return $retvalue; } // Send request $result = $racct->send(); // Evaluation of the response // 5 -> Accounting-Response // See RFC2866 for this. if (PEAR::isError($result)) { $retvalue['acct_val'] = 1; $retvalue['error'] = $result->getMessage(); } else if ($result === true) { $retvalue['acct_val'] = 5 ; } else { $retvalue['acct_val'] = 1 ; } $racct->close(); return $retvalue; } function captiveportal_isip_logged($clientip) { global $g, $cpzone; /* read in client database */ $query = "WHERE ip = '{$clientip}'"; $cpdb = captiveportal_read_db($query); foreach ($cpdb as $cpentry) { return $cpentry; } } ?>