46 lines
1.9 KiB
PHP
Executable File
46 lines
1.9 KiB
PHP
Executable File
<?php
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/*
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* Fetches details of the kernel routing table
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*
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* @param boolean $checkAccesss Perform connectivity test
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* @return string
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*/
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function getRouteInfo($checkAccess)
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{
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$rInfo = array();
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// get all default routes
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exec('ip route list | sed -rn "s/default via (([0-9]{1,3}\.){3}[0-9]{1,3}).*dev (\w*).*src (([0-9]{1,3}\.){3}[0-9]{1,3}).*/\3 \4 \1/p"', $routes);
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exec('ip route list | sed -rn "s/default dev (\w*) scope link/\1/p"', $devs);
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if (!empty($devs)) {
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foreach ($devs as $dev)
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exec('ip route list | sed -rn "s/(([0-9]{1,3}\.){3}[0-9]{1,3}).*dev.*("' . $dev . '").*scope link src (([0-9]{1,3}\.){3}[0-9]{1,3}).*/\3 \4 \1/p"', $routes);
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}
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if (!empty($routes)) {
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foreach ($routes as $i => $route) {
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$prop = explode(' ', $route);
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$rInfo[$i]["interface"] = $prop[0];
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$rInfo[$i]["ip-address"] = $prop[1];
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$rInfo[$i]["gateway"] = $prop[2];
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// resolve the name of the gateway (if possible)
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unset($host);
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exec('host ' . $prop[2] . ' | sed -rn "s/.*domain name pointer (.*)\./\1/p" | head -n 1', $host);
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$rInfo[$i]["gw-name"] = empty($host) ? "*" : $host[0];
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if (isset($checkAccess) && $checkAccess) {
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// check internet connectivity w/ and w/o DNS resolution
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unset($okip);
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exec('ping -W1 -c 1 -I ' . $prop[0] . ' ' . RASPI_ACCESS_CHECK_IP . ' | sed -rn "s/.*icmp_seq=1.*time=.*/OK/p"', $okip);
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$rInfo[$i]["access-ip"] = empty($okip) ? false : true;
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unset($okdns);
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exec('ping -W1 -c 1 -I ' . $prop[0] . ' ' . RASPI_ACCESS_CHECK_DNS . ' | sed -rn "s/.*icmp_seq=1.*time=.*/OK/p"', $okdns);
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$rInfo[$i]["access-dns"] = empty($okdns) ? false : true;
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}
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}
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} else {
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$rInfo = array("error" => "No route to the internet found");
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}
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return $rInfo;
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}
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?>
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