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<?php
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/*
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Copyright (C) 2008 Bill Marquette, Seth Mos
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Copyright (C) 2010 Ermal Lu?i
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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pfSense_BUILDER_BINARIES: /usr/bin/killall /sbin/route /usr/local/sbin/apinger
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pfSense_MODULE: routing
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*/
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/*
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* Creates monitoring configuration file and
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* adds apropriate static routes.
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*/
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function setup_gateways_monitor() {
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global $config, $g;
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$gateways_arr = return_gateways_array();
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if (!is_array($gateways_arr)) {
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log_error("No gateways to monitor. Apinger will not be run.");
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killbypid("{$g['varrun_path']}/apinger.pid");
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@unlink("{$g['tmp_path']}/apinger.status");
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return;
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}
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/* Default settings. Probably should move to globals.inc? */
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$a_settings = array();
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$a_settings['latencylow'] = "200";
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$a_settings['latencyhigh'] = "500";
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$a_settings['losslow'] = "10";
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$a_settings['losshigh'] = "20";
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$fd = fopen("{$g['varetc_path']}/apinger.conf", "w");
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$apingerconfig = <<<EOD
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# pfSense apinger configuration file. Automatically Generated!
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## User and group the pinger should run as
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user "root"
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group "wheel"
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## Mailer to use (default: "/usr/lib/sendmail -t")
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#mailer "/var/qmail/bin/qmail-inject"
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## Location of the pid-file (default: "/var/run/apinger.pid")
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pid_file "{$g['varrun_path']}/apinger.pid"
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## Format of timestamp (%s macro) (default: "%b %d %H:%M:%S")
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#timestamp_format "%Y%m%d%H%M%S"
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status {
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## File where the status information whould be written to
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file "{$g['tmp_path']}/apinger.status"
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## Interval between file updates
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## when 0 or not set, file is written only when SIGUSR1 is received
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interval 5s
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}
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########################################
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# RRDTool status gathering configuration
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# Interval between RRD updates
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rrd interval 60s;
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## These parameters can be overriden in a specific alarm configuration
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alarm default {
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command on "/usr/local/sbin/pfSctl -c 'filter reload'"
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command off "/usr/local/sbin/pfSctl -c 'filter reload'"
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combine 10s
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}
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## "Down" alarm definition.
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## This alarm will be fired when target doesn't respond for 30 seconds.
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alarm down "down" {
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time 10s
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}
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## "Delay" alarm definition.
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## This alarm will be fired when responses are delayed more than 200ms
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## it will be canceled, when the delay drops below 100ms
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alarm delay "delay" {
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delay_low {$a_settings['latencylow']}ms
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delay_high {$a_settings['latencyhigh']}ms
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}
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## "Loss" alarm definition.
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## This alarm will be fired when packet loss goes over 20%
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## it will be canceled, when the loss drops below 10%
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alarm loss "loss" {
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percent_low {$a_settings['losslow']}
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percent_high {$a_settings['losshigh']}
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}
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target default {
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## How often the probe should be sent
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interval 1s
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## How many replies should be used to compute average delay
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## for controlling "delay" alarms
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avg_delay_samples 10
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## How many probes should be used to compute average loss
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avg_loss_samples 50
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## The delay (in samples) after which loss is computed
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## without this delays larger than interval would be treated as loss
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avg_loss_delay_samples 20
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## Names of the alarms that may be generated for the target
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alarms "down","delay","loss"
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## Location of the RRD
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#rrd file "{$g['vardb_path']}/rrd/apinger-%t.rrd"
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}
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EOD;
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$monitor_ips = array();
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foreach($gateways_arr as $name => $gateway) {
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/* Do not monitor if such was requested */
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if (isset($gateway['monitor_disable']))
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continue;
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if (empty($gateway['monitor']) || !is_ipaddr($gateway['monitor'])) {
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if (is_ipaddr($gateway['gateway']))
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$gateway['monitor'] = $gateway['gateway'];
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else /* No chance to get an ip to monitor skip target. */
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continue;
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}
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/* if the monitor address is already used before, skip */
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if(in_array($gateway['monitor'], $monitor_ips))
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continue;
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/* Interface ip is needed since apinger will bind a socket to it. */
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if (is_ipaddrv4($gateway['gateway'])) {
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$gwifip = find_interface_ip($gateway['interface'], true);
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}
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if (is_ipaddrv6($gateway['gateway'])) {
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/* link locals really need a different src ip */
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if(preg_match("/fe80::/i", $gateway['gateway'])) {
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$linklocal = explode("%", find_interface_ipv6_ll($gateway['interface'], true));
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$gwifip = $linklocal[0];
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$ifscope = "%". $linklocal[1];
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} else {
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$gwifip = find_interface_ipv6($gateway['interface'], true);
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}
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}
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if (!is_ipaddr($gwifip))
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continue; //Skip this target
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$monitor_ips[] = monitor_ips;
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$apingercfg = "target \"{$gateway['monitor']}\" {\n";
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$apingercfg .= " description \"{$name}\"\n";
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$apingercfg .= " srcip \"{$gwifip}\"\n";
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if (!empty($gateway['interval']) && intval($gateway['interval']) > 1)
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$apingercfg .= " interval " . intval($gateway['interval']) . "s\n";
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$alarms = "";
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$alarmscfg = "";
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$override = false;
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if (!empty($gateway['lowloss'])) {
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$alarmscfg .= "alarm loss \"{$name}loss\" {\n";
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$alarmscfg .= "\tpercent_low {$gateway['losslow']}\n";
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$alarmscfg .= "\tpercent_high {$gateway['losshigh']}\n";
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$alarmscfg .= "}\n";
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$alarms .= "\"{$name}loss\"";
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$override = true;
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} else {
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if ($override == true)
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$alarms .= ",";
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$alarms .= "\"loss\"";
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$override = true;
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}
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if (!empty($gateway['latencylow'])) {
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$alarmscfg .= "alarm delay \"{$name}delay\" {\n";
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$alarmscfg .= "\tdelay_low {$gateway['latencylow']}ms\n";
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$alarmscfg .= "\tdelay_high {$gateway['latencyhigh']}ms\n";
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$alarmscfg .= "}\n";
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if ($override == true)
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$alarms .= ",";
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$alarms .= "\"{$name}delay\"";
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$override = true;
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} else {
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if ($override == true)
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$alarms .= ",";
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$alarms .= "\"delay\"";
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$override = true;
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}
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if (!empty($gateway['down'])) {
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$alarmscfg .= "alarm down \"{$name}down\" {\n";
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$alarmscfg .= "\ttime {$gateway['down']}s\n";
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$alarmscfg .= "}\n";
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if ($override == true)
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$alarms .= ",";
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$alarms .= "\"{$name}down\"";
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$override = true;
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} else {
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if ($override == true)
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$alarms .= ",";
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$alarms .= "\"down\"";
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$override = true;
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}
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if ($override == true)
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$apingercfg .= "\talarms override {$alarms};\n";
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$apingercfg .= " rrd file \"{$g['vardb_path']}/rrd/{$gateway['name']}-quality.rrd\"\n";
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$apingercfg .= "}\n";
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$apingercfg .= "\n";
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/*
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* If the gateway is the same as the monitor we do not add a
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* route as this will break the routing table.
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* Add static routes for each gateway with their monitor IP
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* not strictly necessary but is a added level of protection.
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*/
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if (is_ipaddr($gateway['gateway']) && $gateway['monitor'] != $gateway['gateway']) {
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log_error(sprintf(gettext('Removing static route for monitor %1$s and adding a new route through %2$s'), $gateway['monitor'], $gateway['gateway']));
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if(is_ipaddrv6($gateway['gateway'])) {
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$inetfamily = "-inet6";
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} else {
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$inetfamily = "-inet";
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}
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mwexec("/sbin/route change {$inetfamily} -host " . escapeshellarg($gateway['monitor']) .
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" " . escapeshellarg($gateway['gateway']), true);
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}
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$apingerconfig .= $alarmscfg;
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$apingerconfig .= $apingercfg;
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}
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fwrite($fd, $apingerconfig);
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fclose($fd);
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killbypid("{$g['varrun_path']}/apinger.pid");
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if (is_dir("{$g['tmp_path']}"))
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chmod("{$g['tmp_path']}", 01777);
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if (!is_dir("{$g['vardb_path']}/rrd"))
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mkdir("{$g['vardb_path']}/rrd", 0775);
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@chown("{$g['vardb_path']}/rrd", "nobody");
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/* start a new apinger process */
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@unlink("{$g['tmp_path']}/apinger.status");
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sleep(1);
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mwexec_bg("/usr/local/sbin/apinger -c {$g['varetc_path']}/apinger.conf");
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return 0;
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}
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/* return the status of the apinger targets as a array */
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function return_gateways_status($byname = false) {
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global $config, $g;
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$apingerstatus = array();
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if (file_exists("{$g['tmp_path']}/apinger.status")) {
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$apingerstatus = file("{$g['tmp_path']}/apinger.status");
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}
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$status = array();
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foreach($apingerstatus as $line) {
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$info = explode("|", $line);
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if ($byname == false)
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$target = $info[0];
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else
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$target = $info[2];
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$status[$target]['monitorip'] = $info[0];
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$status[$target]['srcip'] = $info[1];
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$status[$target]['name'] = $info[2];
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$status[$target]['lastcheck'] = $info[5] ? date('r', $info[5]) : date('r');
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$status[$target]['delay'] = empty($info[6]) ? 0 : $info[6];
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$status[$target]['loss'] = empty($info[7]) ? "0.0%" : $info[7] . "";
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$status[$target]['status'] = trim($info[8]);
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}
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/* tack on any gateways that have monitoring disabled */
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$gateways_arr = return_gateways_array();
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foreach($gateways_arr as $gwitem) {
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if(isset($gwitem['monitor_disable'])) {
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if(!is_ipaddr($gwitem['monitorip'])) {
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$realif = $gwitem['interface'];
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$tgtip = get_interface_gateway($realif);
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$srcip = find_interface_ip($realif);
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} else {
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$tgtip = $gwitem['monitorip'];
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$srcip = find_interface_ip($realif);
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}
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if($byname == true)
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$target = $gwitem['name'];
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else
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$target = $tgtip;
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$status[$target]['monitorip'] = $tgtip;
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$status[$target]['srcip'] = $srcip;
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$status[$target]['name'] = $gwitem['name'];
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$status[$target]['lastcheck'] = date('r');
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$status[$target]['delay'] = "0.0ms";
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$status[$target]['loss'] = "0.0%";
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$status[$target]['status'] = "none";
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}
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}
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return($status);
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}
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321
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/* Return all configured gateways on the system */
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323
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function return_gateways_array($disabled = false) {
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global $config, $g;
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325
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326
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$gateways_arr = array();
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327
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328
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$found_defaultv4 = 0;
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$found_defaultv6 = 0;
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330
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$i = 0;
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/* Process/add all the configured gateways. */
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if (is_array($config['gateways']['gateway_item'])) {
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foreach($config['gateways']['gateway_item'] as $gateway) {
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335
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/* skip disabled interfaces */
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336
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if(!isset($config['interfaces'][$gateway['interface']]['enable']))
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continue;
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338
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/* if the gateway is dynamic and we can find the IP, Great! */
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340
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if(empty($gateway['gateway']) || ($gateway['gateway'] == "dynamic")) {
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341
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$gateway['ipprotocol'] = "inet";
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$gateway['gateway'] = get_interface_gateway($gateway['interface']);
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343
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if($gateway['gateway'] == "dynamic") {
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344
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$dynstr = $gateway['gateway'];
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345
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}
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346
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/* no IP address found, set to dynamic */
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347
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if(! is_ipaddrv4($gateway['gateway'])) {
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$gateway['gateway'] = "{$dynstr}";
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}
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350
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$gateway['dynamic'] = true;
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351
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}
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352
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/* if the gateway is dynamic6 and we can find the IPv6, Great! */
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353
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if(empty($gateway['gateway']) || ($gateway['gateway'] == "dynamic6")) {
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$gateway['ipprotocol'] = "inet6";
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355
|
$gateway['gateway'] = get_interface_gateway_v6($gateway['interface']);
|
|
356
|
if($gateway['gateway'] == "dynamic6") {
|
|
357
|
$dynstr = $gateway['gateway'];
|
|
358
|
}
|
|
359
|
/* no IPv6 address found, set to dynamic6 */
|
|
360
|
if(! is_ipaddrv6($gateway['gateway'])) {
|
|
361
|
$gateway['gateway'] = "{$dynstr}";
|
|
362
|
}
|
|
363
|
$gateway['dynamic'] = true;
|
|
364
|
}
|
|
365
|
if(is_ipaddrv4($gateway['gateway']))
|
|
366
|
$gateway['ipprotocol'] = "inet";
|
|
367
|
if(is_ipaddrv6($gateway['gateway']))
|
|
368
|
$gateway['ipprotocol'] = "inet6";
|
|
369
|
if (isset($gateway['monitor_disable']))
|
|
370
|
$gateway['monitor_disable'] = true;
|
|
371
|
else if (empty($gateway['monitor']))
|
|
372
|
$gateway['monitor'] = $gateway['gateway'];
|
|
373
|
|
|
374
|
$gateway['friendlyiface'] = $gateway['interface'];
|
|
375
|
$gateway['interface'] = get_real_interface($gateway['interface']);
|
|
376
|
|
|
377
|
/* entry has a default flag, use it */
|
|
378
|
if (isset($gateway['defaultgw'])) {
|
|
379
|
if($gateway['ipprotocol'] == "inet") {
|
|
380
|
$gateway['defaultgw'] = true;
|
|
381
|
$found_defaultv4 = 1;
|
|
382
|
}
|
|
383
|
if($gateway['ipprotocol'] == "inet6") {
|
|
384
|
$gateway['defaultgw'] = true;
|
|
385
|
$found_defaultv6 = 1;
|
|
386
|
}
|
|
387
|
}
|
|
388
|
/* FIXME: Should this be enabled.
|
|
389
|
* Some interface like wan might be default but have no info recorded
|
|
390
|
* the config. */
|
|
391
|
/* this is a fallback if all else fails and we want to get packet out @smos */
|
|
392
|
if (!isset($gateway['defaultgw'])) {
|
|
393
|
if (($gateway['friendlyiface'] == "wan") && ($found_defaultv4 == 0)) {
|
|
394
|
if (file_exists("{$g['tmp_path']}/{$gateway['interface']}_defaultgw")) {
|
|
395
|
$gateway['defaultgw'] = true;
|
|
396
|
$found_defaultv4 = 1;
|
|
397
|
}
|
|
398
|
}
|
|
399
|
if (($gateway['friendlyiface'] == "wan") && ($found_defaultv6 == 0)) {
|
|
400
|
if (file_exists("{$g['tmp_path']}/{$gateway['interface']}_defaultgwv6")) {
|
|
401
|
$gateway['defaultgw'] = true;
|
|
402
|
$found_defaultv6 = 1;
|
|
403
|
}
|
|
404
|
}
|
|
405
|
}
|
|
406
|
/* include the gateway index as the attribute */
|
|
407
|
$gateway['attribute'] = $i;
|
|
408
|
|
|
409
|
$gateways_arr[$gateway['name']] = $gateway;
|
|
410
|
unset($gateway);
|
|
411
|
$i++;
|
|
412
|
}
|
|
413
|
}
|
|
414
|
|
|
415
|
/* Loop through all interfaces with a gateway and add it to a array */
|
|
416
|
if ($disabled == false)
|
|
417
|
$iflist = get_configured_interface_with_descr();
|
|
418
|
else
|
|
419
|
$iflist = get_configured_interface_with_descr(false, true);
|
|
420
|
|
|
421
|
/* Process/add dynamic v4 gateways. */
|
|
422
|
foreach($iflist as $ifname => $friendly ) {
|
|
423
|
if(! interface_has_gateway($ifname))
|
|
424
|
continue;
|
|
425
|
|
|
426
|
if (empty($config['interfaces'][$ifname]))
|
|
427
|
continue;
|
|
428
|
|
|
429
|
$ifcfg = &$config['interfaces'][$ifname];
|
|
430
|
if(!empty($ifcfg['ipaddr']) && is_ipaddrv4($ifcfg['ipaddr']))
|
|
431
|
continue;
|
|
432
|
|
|
433
|
if(!isset($ifcfg['enable']))
|
|
434
|
continue;
|
|
435
|
|
|
436
|
$ctype = "";
|
|
437
|
switch($ifcfg['ipaddr']) {
|
|
438
|
case "dhcp":
|
|
439
|
case "pppoe":
|
|
440
|
case "pptp":
|
|
441
|
$ctype = strtoupper($ifcfg['ipaddr']);
|
|
442
|
break;
|
|
443
|
default:
|
|
444
|
if (substr($ifcfg['if'], 0, 5) == "ovpnc")
|
|
445
|
$ctype = "VPNv4";
|
|
446
|
break;
|
|
447
|
}
|
|
448
|
$ctype = "_". strtoupper($ctype);
|
|
449
|
|
|
450
|
$gateway = array();
|
|
451
|
$gateway['dynamic'] = false;
|
|
452
|
$gateway['ipprotocol'] = "inet";
|
|
453
|
$gateway['gateway'] = get_interface_gateway($ifname, $gateway['dynamic']);
|
|
454
|
$gateway['interface'] = get_real_interface($ifname);
|
|
455
|
$gateway['friendlyiface'] = $ifname;
|
|
456
|
$gateway['name'] = "{$friendly}{$ctype}";
|
|
457
|
$gateway['attribute'] = "system";
|
|
458
|
|
|
459
|
if (($gateway['dynamic'] === "default") && ($found_defaultv4 == 0)) {
|
|
460
|
$gateway['defaultgw'] = true;
|
|
461
|
$gateway['dynamic'] = true;
|
|
462
|
$found_defaultv4 = 1;
|
|
463
|
}
|
|
464
|
/* Loopback dummy for dynamic interfaces without a IP */
|
|
465
|
if (!is_ipaddrv4($gateway['gateway']) && $gateway['dynamic'] == true)
|
|
466
|
$gateway['gateway'] = "dynamic";
|
|
467
|
|
|
468
|
/* automatically skip known static and dynamic gateways we have a array entry for */
|
|
469
|
foreach($gateways_arr as $gateway_item) {
|
|
470
|
if ((($ifname == $gateway_item['friendlyiface'] && $friendly == $gateway_item['name'])&& ($gateway['ipprotocol'] == $gateway_item['ipprotocol'])) ||
|
|
471
|
($ifname == $gateway_item['friendlyiface'] && $gateway_item['dynamic'] == true) && ($gateway['ipprotocol'] == $gateway_item['ipprotocol']))
|
|
472
|
continue 2;
|
|
473
|
}
|
|
474
|
|
|
475
|
if (is_ipaddrv4($gateway['gateway']))
|
|
476
|
$gateway['monitor'] = $gateway['gateway'];
|
|
477
|
|
|
478
|
$gateway['descr'] = "Interface {$friendly}{$ctype} Gateway";
|
|
479
|
$gateways_arr[$gateway['name']] = $gateway;
|
|
480
|
unset($gateway);
|
|
481
|
}
|
|
482
|
|
|
483
|
/* Process/add dynamic v6 gateways. */
|
|
484
|
foreach($iflist as $ifname => $friendly ) {
|
|
485
|
if(! interface_has_gatewayv6($ifname))
|
|
486
|
continue;
|
|
487
|
|
|
488
|
if (empty($config['interfaces'][$ifname]))
|
|
489
|
continue;
|
|
490
|
|
|
491
|
$ifcfg = &$config['interfaces'][$ifname];
|
|
492
|
if(!empty($ifcfg['ipaddrv6']) && is_ipaddrv6($ifcfg['ipaddrv6']))
|
|
493
|
continue;
|
|
494
|
|
|
495
|
if(!isset($ifcfg['enable']))
|
|
496
|
continue;
|
|
497
|
|
|
498
|
$ctype = "";
|
|
499
|
switch($ifcfg['ipaddrv6']) {
|
|
500
|
case "slaac":
|
|
501
|
case "dhcp6":
|
|
502
|
case "6to4":
|
|
503
|
case "6rd":
|
|
504
|
$ctype = strtoupper($ifcfg['ipaddrv6']);
|
|
505
|
break;
|
|
506
|
default:
|
|
507
|
if (substr($ifcfg['if'], 0, 5) == "ovpnc")
|
|
508
|
$ctype = "VPNv6";
|
|
509
|
break;
|
|
510
|
}
|
|
511
|
$ctype = "_". strtoupper($ctype);
|
|
512
|
|
|
513
|
$gateway = array();
|
|
514
|
$gateway['dynamic'] = false;
|
|
515
|
$gateway['ipprotocol'] = "inet6";
|
|
516
|
$gateway['gateway'] = get_interface_gateway_v6($ifname, $gateway['dynamic']);
|
|
517
|
switch($ifcfg['ipaddrv6']) {
|
|
518
|
case "6to4":
|
|
519
|
$gateway['interface'] = "stf0";
|
|
520
|
$gateway['dynamic'] = "default";
|
|
521
|
break;
|
|
522
|
case "6rd":
|
|
523
|
$gateway['interface'] = "stf0";
|
|
524
|
$gateway['dynamic'] = "default";
|
|
525
|
break;
|
|
526
|
default:
|
|
527
|
$gateway['interface'] = get_real_interface($ifname);
|
|
528
|
break;
|
|
529
|
}
|
|
530
|
$gateway['friendlyiface'] = $ifname;
|
|
531
|
$gateway['name'] = "{$friendly}{$ctype}";
|
|
532
|
$gateway['attribute'] = "system";
|
|
533
|
|
|
534
|
if (($gateway['dynamic'] === "default") && ($found_defaultv6 == 0)) {
|
|
535
|
$gateway['defaultgw'] = true;
|
|
536
|
$gateway['dynamic'] = true;
|
|
537
|
$found_defaultv6 = 1;
|
|
538
|
}
|
|
539
|
|
|
540
|
/* Loopback dummy for dynamic interfaces without a IP */
|
|
541
|
if (!is_ipaddrv6($gateway['gateway']) && $gateway['dynamic'] == true)
|
|
542
|
$gateway['gateway'] = "dynamic6";
|
|
543
|
|
|
544
|
/* automatically skip known static and dynamic gateways we have a array entry for */
|
|
545
|
foreach($gateways_arr as $gateway_item) {
|
|
546
|
if ((($ifname == $gateway_item['friendlyiface'] && $friendly == $gateway_item['name']) && ($gateway['ipprotocol'] == $gateway_item['ipprotocol'])) ||
|
|
547
|
($ifname == $gateway_item['friendlyiface'] && $gateway_item['dynamic'] == true) && ($gateway['ipprotocol'] == $gateway_item['ipprotocol']))
|
|
548
|
continue 2;
|
|
549
|
}
|
|
550
|
|
|
551
|
if (is_ipaddrv6($gateway['gateway']))
|
|
552
|
$gateway['monitor'] = $gateway['gateway'];
|
|
553
|
|
|
554
|
$gateway['descr'] = "Interface {$friendly}{$ctype} Gateway";
|
|
555
|
$gateways_arr[$gateway['name']] = $gateway;
|
|
556
|
unset($gateway);
|
|
557
|
}
|
|
558
|
return($gateways_arr);
|
|
559
|
}
|
|
560
|
|
|
561
|
/*
|
|
562
|
* Return an array with all gateway groups with name as key
|
|
563
|
* All gateway groups will be processed before returning the array.
|
|
564
|
*/
|
|
565
|
function return_gateway_groups_array() {
|
|
566
|
global $config, $g;
|
|
567
|
|
|
568
|
/* fetch the current gateways status */
|
|
569
|
$gateways_status = return_gateways_status(true);
|
|
570
|
$gateways_arr = return_gateways_array();
|
|
571
|
$gateway_groups_array = array();
|
|
572
|
|
|
573
|
if (isset($config['system']['gw_switch_default'])) {
|
|
574
|
/*
|
|
575
|
* NOTE: The code below is meant to replace the default gateway when it goes down.
|
|
576
|
* This facilitates services running on pfSense itself and are not handled by a PBR to continue working.
|
|
577
|
*/
|
|
578
|
$upgw = "";
|
|
579
|
$dfltgwdown = false;
|
|
580
|
$dfltgwfound = false;
|
|
581
|
foreach ($gateways_arr as $gwname => $gwsttng) {
|
|
582
|
if (isset($gwsttng['defaultgw'])) {
|
|
583
|
$dfltgwfound = true;
|
|
584
|
$dfltgwname = $gwname;
|
|
585
|
if (!isset($gwsttng['monitor_disable']) && stristr($gateways_status[$gwname]['status'], "down"))
|
|
586
|
$dfltgwdown = true;
|
|
587
|
}
|
|
588
|
/* Keep a record of the last up gateway */
|
|
589
|
/* XXX: Blacklist lan for now since it might cause issues to those who have a gateway set for it */
|
|
590
|
if (empty($upgw) && (isset($gwsttng['monitor_disable']) || !stristr($gateways_status[$gwname]['status'], "down")) && $gwsttng[$gwname]['friendlyiface'] != "lan")
|
|
591
|
$upgw = $gwname;
|
|
592
|
if ($dfltgwdown == true && !empty($upgw))
|
|
593
|
break;
|
|
594
|
}
|
|
595
|
if ($dfltgwfound == false) {
|
|
596
|
$gwname = convert_friendly_interface_to_friendly_descr("wan");
|
|
597
|
if (!empty($gateways_status[$gwname]) && stristr($gateways_status[$gwname]['status'], "down"))
|
|
598
|
$dfltgwdown = true;
|
|
599
|
}
|
|
600
|
if ($dfltgwdown == true && !empty($upgw)) {
|
|
601
|
if (preg_match("/dynamic", $gateways_arr[$upgw]['gateway']))
|
|
602
|
$gateways_arr[$upgw]['gateway'] = get_interface_gateway($gateways_arr[$upgw]['friendlyiface']);
|
|
603
|
if (is_ipaddr($gateways_arr[$upgw]['gateway'])) {
|
|
604
|
log_error("Default gateway down setting {$upgw} as default!");
|
|
605
|
if(is_ipaddrv6($gateways_arr[$upgw]['gateway'])) {
|
|
606
|
$inetfamily = "-inet6";
|
|
607
|
} else {
|
|
608
|
$inetfamily = "-inet";
|
|
609
|
}
|
|
610
|
mwexec("/sbin/route change {$inetfamily} default {$gateways_arr[$upgw]['gateway']}");
|
|
611
|
}
|
|
612
|
} else {
|
|
613
|
$defaultgw = trim(`/sbin/route -n get -inet default | /usr/bin/grep gateway | /usr/bin/sed 's/gateway://g'`, " \n");
|
|
614
|
if(is_ipaddrv6($gateways_arr[$dfltgwname]['gateway'])) {
|
|
615
|
$inetfamily = "-inet6";
|
|
616
|
} else {
|
|
617
|
$inetfamily = "-inet";
|
|
618
|
}
|
|
619
|
if ($defaultgw != $gateways_arr[$dfltgwname]['gateway'])
|
|
620
|
mwexec("/sbin/route change {$inetfamily} default {$gateways_arr[$dfltgwname]['gateway']}");
|
|
621
|
}
|
|
622
|
|
|
623
|
unset($upgw, $dfltgwfound, $dfltgwdown, $gwname, $gwsttng);
|
|
624
|
}
|
|
625
|
|
|
626
|
if (is_array($config['gateways']['gateway_group'])) {
|
|
627
|
foreach($config['gateways']['gateway_group'] as $group) {
|
|
628
|
/* create array with group gateways members seperated by tier */
|
|
629
|
$tiers = array();
|
|
630
|
$backupplan = array();
|
|
631
|
foreach($group['item'] as $item) {
|
|
632
|
$itemsplit = explode("|", $item);
|
|
633
|
$tier = $itemsplit[1];
|
|
634
|
$gwname = $itemsplit[0];
|
|
635
|
|
|
636
|
/* Do it here rather than reiterating again the group in case no member is up. */
|
|
637
|
$backupplan[$tier][] = $gwname;
|
|
638
|
|
|
639
|
/* check if the gateway is available before adding it to the array */
|
|
640
|
if (!empty($gateways_status[$gwname])) {
|
|
641
|
$status = $gateways_status[$gwname];
|
|
642
|
$gwdown = false;
|
|
643
|
if (stristr($status['status'], "down")) {
|
|
644
|
$msg = sprintf(gettext("MONITOR: %s is down, removing from routing group"), $gwname);
|
|
645
|
$gwdown = true;
|
|
646
|
} else if (stristr($status['status'], "loss") && strstr($group['trigger'], "loss")) {
|
|
647
|
/* packet loss */
|
|
648
|
$msg = sprintf(gettext("MONITOR: %s has packet loss, removing from routing group"), $gwname);
|
|
649
|
$gwdown = true;
|
|
650
|
} else if (stristr($status['status'], "delay") && strstr($group['trigger'] , "latency")) {
|
|
651
|
/* high latency */
|
|
652
|
$msg = sprintf(gettext("MONITOR: %s has high latency, removing from routing group"), $gwname);
|
|
653
|
$gwdown = true;
|
|
654
|
}
|
|
655
|
if ($gwdown == true) {
|
|
656
|
log_error($msg);
|
|
657
|
notify_via_growl($msg);
|
|
658
|
notify_via_smtp($msg);
|
|
659
|
} else
|
|
660
|
/* Online add member */
|
|
661
|
$tiers[$tier][] = $gwname;
|
|
662
|
} else if (isset($gateways_arr[$gwname]['monitor_disable']))
|
|
663
|
$tiers[$tier][] = $gwname;
|
|
664
|
}
|
|
665
|
$tiers_count = count($tiers);
|
|
666
|
if($tiers_count == 0) {
|
|
667
|
/* Oh dear, we have no members! Engage Plan B */
|
|
668
|
if (!$g['booting']) {
|
|
669
|
$msg = gettext("Gateways status could not be determined, considering all as up/active.");
|
|
670
|
log_error($msg);
|
|
671
|
notify_via_growl($msg);
|
|
672
|
notify_via_smtp($msg);
|
|
673
|
}
|
|
674
|
$tiers = $backupplan;
|
|
675
|
}
|
|
676
|
/* sort the tiers array by the tier key */
|
|
677
|
ksort($tiers);
|
|
678
|
|
|
679
|
/* we do not really foreach the tiers as we stop after the first tier */
|
|
680
|
foreach($tiers as $tier) {
|
|
681
|
/* process all gateways in this tier */
|
|
682
|
foreach($tier as $member) {
|
|
683
|
/* determine interface gateway */
|
|
684
|
if (isset($gateways_arr[$member])) {
|
|
685
|
$gateway = $gateways_arr[$member];
|
|
686
|
$int = $gateway['interface'];
|
|
687
|
$gatewayip = "";
|
|
688
|
if(is_ipaddr($gateway['gateway']))
|
|
689
|
$gatewayip = $gateway['gateway'];
|
|
690
|
else if ($int <> "")
|
|
691
|
$gatewayip = get_interface_gateway($gateway['friendlyiface']);
|
|
692
|
|
|
693
|
if (($int <> "") && is_ipaddr($gatewayip)) {
|
|
694
|
$groupmember = array();
|
|
695
|
$groupmember['int'] = $int;
|
|
696
|
$groupmember['gwip'] = $gatewayip;
|
|
697
|
$groupmember['weight'] = isset($gateway['weight']) ? $gateway['weight'] : 1;
|
|
698
|
$gateway_groups_array[$group['name']][] = $groupmember;
|
|
699
|
}
|
|
700
|
}
|
|
701
|
}
|
|
702
|
/* we should have the 1st available tier now, exit stage left */
|
|
703
|
break;
|
|
704
|
}
|
|
705
|
}
|
|
706
|
}
|
|
707
|
return ($gateway_groups_array);
|
|
708
|
}
|
|
709
|
|
|
710
|
/* Update DHCP WAN Interface ip address in gateway group item */
|
|
711
|
function dhclient_update_gateway_groups_defaultroute($interface = "wan") {
|
|
712
|
global $config, $g;
|
|
713
|
foreach($config['gateways']['gateway_item'] as & $gw) {
|
|
714
|
if($gw['interface'] == $interface) {
|
|
715
|
$current_gw = get_interface_gateway($interface);
|
|
716
|
if($gw['gateway'] <> $current_gw) {
|
|
717
|
$gw['gateway'] = $current_gw;
|
|
718
|
$changed = true;
|
|
719
|
}
|
|
720
|
}
|
|
721
|
}
|
|
722
|
if($changed && $current_gw)
|
|
723
|
write_config(sprintf(gettext('Updating gateway group gateway for %1$s - new gateway is %2$s'), $interfac, $current_gw));
|
|
724
|
}
|
|
725
|
|
|
726
|
function lookup_gateway_ip_by_name($name) {
|
|
727
|
|
|
728
|
$gateways_arr = return_gateways_array();
|
|
729
|
foreach ($gateways_arr as $gname => $gw) {
|
|
730
|
if ($gw['name'] == $name || $gname == $name)
|
|
731
|
return $gw['gateway'];
|
|
732
|
}
|
|
733
|
|
|
734
|
return false;
|
|
735
|
}
|
|
736
|
|
|
737
|
function lookup_gateway_monitor_ip_by_name($name) {
|
|
738
|
|
|
739
|
$gateways_arr = return_gateways_array();
|
|
740
|
if (!empty($gateways_arr[$name])) {
|
|
741
|
$gateway = $gateways_arr[$name];
|
|
742
|
if(!is_ipaddr($gateway['monitor']))
|
|
743
|
return $gateway['gateway'];
|
|
744
|
|
|
745
|
return $gateway['monitor'];
|
|
746
|
}
|
|
747
|
|
|
748
|
return (false);
|
|
749
|
}
|
|
750
|
|
|
751
|
function lookup_gateway_interface_by_name($name) {
|
|
752
|
|
|
753
|
$gateways_arr = return_gateways_array();
|
|
754
|
if (!empty($gateways_arr[$name])) {
|
|
755
|
$interfacegw = $gateway['interface'];
|
|
756
|
return ($interfacegw);
|
|
757
|
}
|
|
758
|
|
|
759
|
return (false);
|
|
760
|
}
|
|
761
|
|
|
762
|
function get_interface_gateway($interface, &$dynamic = false) {
|
|
763
|
global $config, $g;
|
|
764
|
|
|
765
|
$gw = NULL;
|
|
766
|
|
|
767
|
$gwcfg = $config['interfaces'][$interface];
|
|
768
|
if (!empty($gwcfg['gateway']) && is_array($config['gateways']['gateway_item'])) {
|
|
769
|
foreach($config['gateways']['gateway_item'] as $gateway) {
|
|
770
|
if(($gateway['name'] == $gwcfg['gateway']) && (is_ipaddrv4($gateway['gateway']))) {
|
|
771
|
$gw = $gateway['gateway'];
|
|
772
|
break;
|
|
773
|
}
|
|
774
|
}
|
|
775
|
}
|
|
776
|
|
|
777
|
// for dynamic interfaces we handle them through the $interface_router file.
|
|
778
|
if (!is_ipaddrv4($gw) && !is_ipaddrv4($gwcfg['ipaddr'])) {
|
|
779
|
$realif = get_real_interface($interface);
|
|
780
|
if (file_exists("{$g['tmp_path']}/{$realif}_router")) {
|
|
781
|
$gw = trim(file_get_contents("{$g['tmp_path']}/{$realif}_router"), " \n");
|
|
782
|
$dynamic = true;
|
|
783
|
}
|
|
784
|
if (file_exists("{$g['tmp_path']}/{$realif}_defaultgw"))
|
|
785
|
$dynamic = "default";
|
|
786
|
|
|
787
|
}
|
|
788
|
|
|
789
|
/* return gateway */
|
|
790
|
return ($gw);
|
|
791
|
}
|
|
792
|
|
|
793
|
function get_interface_gateway_v6($interface, &$dynamic = false) {
|
|
794
|
global $config, $g;
|
|
795
|
|
|
796
|
$gw = NULL;
|
|
797
|
$gwcfg = $config['interfaces'][$interface];
|
|
798
|
if (!empty($gwcfg['gatewayv6']) && is_array($config['gateways']['gateway_item'])) {
|
|
799
|
foreach($config['gateways']['gateway_item'] as $gateway) {
|
|
800
|
if(($gateway['name'] == $gwcfg['gatewayv6']) && (is_ipaddrv6($gateway['gateway']))) {
|
|
801
|
$gw = $gateway['gateway'];
|
|
802
|
break;
|
|
803
|
}
|
|
804
|
}
|
|
805
|
}
|
|
806
|
|
|
807
|
// for dynamic interfaces we handle them through the $interface_router file.
|
|
808
|
if (!is_ipaddrv6($gw) && !is_ipaddrv6($gwcfg['ipaddrv6'])) {
|
|
809
|
$realif = get_real_interface($interface);
|
|
810
|
if (file_exists("{$g['tmp_path']}/{$realif}_routerv6")) {
|
|
811
|
$gw = trim(file_get_contents("{$g['tmp_path']}/{$realif}_routerv6"), " \n");
|
|
812
|
$dynamic = true;
|
|
813
|
}
|
|
814
|
if (file_exists("{$g['tmp_path']}/{$realif}_defaultgwv6"))
|
|
815
|
$dynamic = "default";
|
|
816
|
|
|
817
|
}
|
|
818
|
/* return gateway */
|
|
819
|
return ($gw);
|
|
820
|
}
|
|
821
|
|
|
822
|
/* Check a IP address against a gateway IP or name
|
|
823
|
* to verify it's address family */
|
|
824
|
function validate_address_family($ipaddr, $gwname) {
|
|
825
|
$v4ip = false;
|
|
826
|
$v6ip = false;
|
|
827
|
$v4gw = false;
|
|
828
|
$v6gw = false;
|
|
829
|
|
|
830
|
if(is_ipaddrv4($ipaddr))
|
|
831
|
$v4ip = true;
|
|
832
|
if(is_ipaddrv6($ipaddr))
|
|
833
|
$v6ip = true;
|
|
834
|
if(is_ipaddrv4($gwname))
|
|
835
|
$v4gw = true;
|
|
836
|
if(is_ipaddrv6($gwname))
|
|
837
|
$v6gw = true;
|
|
838
|
|
|
839
|
if($v4ip && $v4gw)
|
|
840
|
return true;
|
|
841
|
if($v6ip && $v6gw)
|
|
842
|
return true;
|
|
843
|
|
|
844
|
/* still no match, carry on, lookup gateways */
|
|
845
|
if(is_ipaddrv4(lookup_gateway_ip_by_name($gwname)))
|
|
846
|
$v4gw = true;
|
|
847
|
if(is_ipaddrv6(lookup_gateway_ip_by_name($gwname)))
|
|
848
|
$v6gw = true;
|
|
849
|
/* are they dynamic */
|
|
850
|
switch($gwname) {
|
|
851
|
case "dynamic":
|
|
852
|
$v4gw = true;
|
|
853
|
break;
|
|
854
|
case "dynamic6":
|
|
855
|
$v6gw = true;
|
|
856
|
break;
|
|
857
|
}
|
|
858
|
|
|
859
|
if($v4ip && $v4gw)
|
|
860
|
return true;
|
|
861
|
if($v6ip && $v6gw)
|
|
862
|
return true;
|
|
863
|
|
|
864
|
return false;
|
|
865
|
}
|
|
866
|
|
|
867
|
|
|
868
|
?>
|