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(legacy) refactor diag_packet_capture.php
This commit is contained in:
Ad Schellevis
parent
b498f1e96d
commit
4a6576e297
@ -1,494 +1,490 @@
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<?php
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/*
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Copyright (C) 2014 Deciso B.V.
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Copyright (C) 2016 Deciso B.V.
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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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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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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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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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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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*/
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function fixup_host_logic($value) {
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return str_replace(array(" ", ",", "+", "|", "!"), array("", "and ", "and ", "or ", "not "), $value);
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}
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function strip_host_logic($value) {
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return str_replace(array(" ", ",", "+", "|", "!"), array("", "", "", "", ""), $value);
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}
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function get_host_boolean($value, $host) {
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$value = str_replace(array("!", $host), array("", ""), $value);
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$andor = "";
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switch (trim($value)) {
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case "|":
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$andor = "or ";
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break;
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case ",":
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case "+":
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$andor = "and ";
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break;
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}
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return $andor;
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}
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function has_not($value) {
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return strpos($value, '!') !== false;
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}
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function fixup_not($value) {
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return str_replace("!", "not ", $value);
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}
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function strip_not($value) {
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return ltrim(trim($value), '!');
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}
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function fixup_host($value, $position) {
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$host = strip_host_logic($value);
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$not = has_not($value) ? "not " : "";
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$andor = ($position > 0) ? get_host_boolean($value, $host) : "";
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if (is_ipaddr($host))
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return "{$andor}host {$not}" . $host;
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elseif (is_subnet($host))
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return "{$andor}net {$not}" . $host;
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else
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return "";
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}
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if ($_POST['downloadbtn'] == gettext("Download Capture"))
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$nocsrf = true;
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require_once("guiconfig.inc");
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require_once("pfsense-utils.inc");
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require_once("interfaces.inc");
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$fp = "/root/";
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$fn = "packetcapture.cap";
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$snaplen = 0;//default packet length
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$count = 100;//default number of packets to capture
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/**
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* kill tcp dump process
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*/
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function stop_capture()
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{
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$processes_running = trim(shell_exec("/bin/ps axw -O pid= | /usr/bin/grep tcpdump | /usr/bin/grep packetcapture.cap | /usr/bin/egrep -v '(pflog|grep)'"));
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foreach (explode("\n", $processes_running) as $process) {
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exec("kill ". explode(' ',$process)[0]);
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}
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}
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$fams = array('ip', 'ip6');
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$protos = array('icmp', 'icmp6', 'tcp', 'udp', 'arp', 'carp', 'esp',
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'!icmp', '!icmp6', '!tcp', '!udp', '!arp', '!carp', '!esp');
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/**
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* start capture operation
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* @param array $option, options to pass to tpcdump (interface, promiscuous, snaplen, fam, host, proto, port)
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*/
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function start_capture($options)
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{
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$cmd_opts = array();
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$filter_opts = array();
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$intf = get_real_interface($options['interface']);
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$cmd_opts[] = '-i ' . $intf;
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$input_errors = array();
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if (empty($options['promiscuous'])) {
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// disable promiscuous mode
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$cmd_opts[] = '-p';
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}
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if (!empty($options['snaplen']) && is_numeric($options['snaplen'])) {
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// setup Packet Length
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$cmd_opts[] = '-s '. $options['snaplen'];
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}
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if (!empty($options['count']) && is_numeric($options['count'])) {
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// setup count
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$cmd_opts[] = '-c '. $options['count'];
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}
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if (!empty($options['fam']) && in_array($options['fam'], array('ip', 'ip6'))) {
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// filter address family
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$filter_opts[] = $options['fam'];
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}
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if (!empty($options['proto'])) {
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// filter protocol
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$filter_opts[] = $options['proto'];
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}
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if (!empty($options['host'])) {
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// filter host argument
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$filter = '';
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$prev_token = '';
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foreach (explode(' ', $options['host']) as $token) {
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if (in_array(trim($token), array('and', 'or'))) {
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$filter .= $token;
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} elseif (is_ipaddr($token)) {
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$filter .= "host " . $prev_token . " " . $token;
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} elseif (is_subnet($token)) {
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$filter .= "net " . $prev_token . " " . $token;
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}
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if (trim($token) == 'not') {
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$prev_token = 'not';
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} else {
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$prev_token = '';
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}
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$filter .= " ";
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}
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$filter_opts[] = "( ". $filter . " )";
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}
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if (!empty($options['port'])) {
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// filter port
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$filter_opts[] = "port " . str_replace("!", "not ", $options['port']);
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}
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if (!empty($intf)) {
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$cmd = '/usr/sbin/tcpdump ';
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$cmd .= implode(' ', $cmd_opts);
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$cmd .= ' -w /root/packetcapture.cap ';
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$cmd .= " ".escapeshellarg(implode(' and ', $filter_opts));
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//delete previous packet capture if it exists
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if (file_exists('/root/packetcapture.cap')) {
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unlink ('/root/packetcapture.cap');
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}
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mwexec_bg($cmd);
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}
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}
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/**
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* check if packetcapture is running
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* @return bool
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*/
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function capture_running()
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{
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$processcheck = (trim(shell_exec("/bin/ps axw -O pid= | /usr/bin/grep tcpdump | /usr/bin/grep packetcapture.cap | /usr/bin/egrep -v '(pflog|grep)'")));
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if (!empty($processcheck)) {
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return true;
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} else {
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return false;
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}
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}
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// define selectable interfaces
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$interfaces = get_configured_interface_with_descr();
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if (isset($config['ipsec']['enable'])) {
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$interfaces['ipsec'] = 'IPsec';
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$interfaces['ipsec'] = 'IPsec';
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}
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foreach (array('server', 'client') as $mode) {
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if (isset($config['openvpn']["openvpn-{$mode}"])) {
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foreach ($config['openvpn']["openvpn-{$mode}"] as $id => $setting) {
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if (!isset($setting['disable'])) {
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$interfaces['ovpn' . substr($mode, 0, 1) . $setting['vpnid']] = gettext("OpenVPN") . " ".$mode.": ".htmlspecialchars($setting['description']);
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}
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}
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}
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if (isset($config['openvpn']["openvpn-{$mode}"])) {
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foreach ($config['openvpn']["openvpn-{$mode}"] as $id => $setting) {
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if (!isset($setting['disable'])) {
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$interfaces['ovpn' . substr($mode, 0, 1) . $setting['vpnid']] = gettext("OpenVPN") . " ".$mode.": ".htmlspecialchars($setting['description']);
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}
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}
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}
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}
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if ($_POST) {
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$host = $_POST['host'];
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$selectedif = $_POST['interface'];
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$count = $_POST['count'];
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$snaplen = $_POST['snaplen'];
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$port = $_POST['port'];
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$detail = $_POST['detail'];
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$fam = $_POST['fam'];
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$proto = $_POST['proto'];
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if (!array_key_exists($selectedif, $interfaces)) {
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$input_errors[] = gettext("Invalid interface.");
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}
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if ($fam !== "" && $fam !== "ip" && $fam !== "ip6") {
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$input_errors[] = gettext("Invalid address family.");
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}
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if ($proto !== "" && !in_array(strip_not($proto), $protos)) {
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$input_errors[] = gettext("Invalid protocol.");
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}
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if ($_SERVER['REQUEST_METHOD'] === 'GET') {
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if (isset($_GET['download'])) {
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// download capture file
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header("Content-Type: application/octet-stream");
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header("Content-Disposition: attachment; filename=packetcapture.cap");
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header("Content-Length: ".filesize("/root/packetcapture.cap"));
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readfile("/root/packetcapture.cap");
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exit;
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} elseif (!empty($_GET['view'])) {
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// download capture contents
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if (!empty($_GET['dnsquery'])) {
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//if dns lookup is checked
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$disabledns = "";
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} else {
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//if dns lookup is unchecked
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$disabledns = "-n";
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}
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$detail_args = "";
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switch (!empty($_GET['detail']) ? $_GET['detail'] : null) {
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case "full":
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$detail_args = "-vv -e";
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break;
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case "high":
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$detail_args = "-vv";
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break;
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case "medium":
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$detail_args = "-v";
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break;
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case "normal":
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default:
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$detail_args = "-q";
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break;
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}
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$result = array();
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$dump_output = array();
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exec("/usr/sbin/tcpdump {$disabledns} {$detail_args} -r /root/packetcapture.cap", $dump_output);
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// reformat raw output to 1 packet per array item
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foreach ($dump_output as $line) {
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if ($line[0] == ' ' && count($result) > 0) {
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$result[count($result)-1] .= "\n" . $line;
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} else {
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$result[] = $line;
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}
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}
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echo json_encode($result);
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exit;
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} else {
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// set form defaults
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$pconfig = array();
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$pconfig['interface'] = "WAN";
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$pconfig['promiscuous'] = null;
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$pconfig['fam'] = null;
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$pconfig['proto'] = null;
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$pconfig['host'] = null;
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$pconfig['port'] = null;
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$pconfig['snaplen'] = null;
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$pconfig['count'] = 100;
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}
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} elseif ($_SERVER['REQUEST_METHOD'] === 'POST') {
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$input_errors = array();
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$pconfig = $_POST;
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if ($host != "") {
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$host_string = str_replace(array(" ", "|", ","), array("", "#|", "#+"), $host);
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if (strpos($host_string, '#') === false) {
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$hosts = array($host);
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} else {
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$hosts = explode('#', $host_string);
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}
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foreach ($hosts as $h) {
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if (!is_subnet(strip_host_logic($h)) && !is_ipaddr(strip_host_logic($h))) {
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$input_errors[] = sprintf(gettext("A valid IP address or CIDR block must be specified. [%s]"), $h);
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}
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}
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}
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if ($port != "") {
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if (!is_port(strip_not($port))) {
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$input_errors[] = gettext("Invalid value specified for port.");
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}
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}
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if ($snaplen == "") {
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$snaplen = 0;
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} else {
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if (!is_numeric($snaplen) || $snaplen < 0) {
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$input_errors[] = gettext("Invalid value specified for packet length.");
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}
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}
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if ($count == "") {
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$count = 0;
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} else {
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if (!is_numeric($count) || $count < 0) {
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$input_errors[] = gettext("Invalid value specified for packet count.");
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}
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}
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if (!empty($_POST['start'])) {
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if (!array_key_exists($pconfig['interface'], $interfaces)) {
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$input_errors[] = gettext("Invalid interface.");
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}
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if ($pconfig['fam'] !== "" && $pconfig['fam'] !== "ip" && $pconfig['fam'] !== "ip6") {
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$input_errors[] = gettext("Invalid address family.");
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}
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$protos = array('icmp', 'icmp6', 'tcp', 'udp', 'arp', 'carp', 'esp',
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'!icmp', '!icmp6', '!tcp', '!udp', '!arp', '!carp', '!esp');
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if ($pconfig['proto'] !== "" && !in_array(ltrim(trim($pconfig['proto']), '!'), $protos)) {
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$input_errors[] = gettext("Invalid protocol.");
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}
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if (!count($input_errors)) {
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$do_tcpdump = true;
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if ($_POST['promiscuous']) {
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//if promiscuous mode is checked
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$disablepromiscuous = "";
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} else {
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//if promiscuous mode is unchecked
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$disablepromiscuous = "-p";
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}
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if ($_POST['dnsquery']) {
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//if dns lookup is checked
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$disabledns = "";
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} else {
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//if dns lookup is unchecked
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$disabledns = "-n";
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}
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if ($_POST['startbtn'] != "" ) {
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$action = gettext("Start");
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//delete previous packet capture if it exists
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if (file_exists($fp.$fn))
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unlink ($fp.$fn);
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} elseif ($_POST['stopbtn']!= "") {
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$action = gettext("Stop");
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$processes_running = trim(shell_exec("/bin/ps axw -O pid= | /usr/bin/grep tcpdump | /usr/bin/grep {$fn} | /usr/bin/egrep -v '(pflog|grep)'"));
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//explode processes into an array, (delimiter is new line)
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$processes_running_array = explode("\n", $processes_running);
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//kill each of the packetcapture processes
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foreach ($processes_running_array as $process) {
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$process_id_pos = strpos($process, ' ');
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$process_id = substr($process, 0, $process_id_pos);
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exec("kill $process_id");
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}
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} elseif ($_POST['downloadbtn']!= "") {
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//download file
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$fs = filesize($fp.$fn);
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header("Content-Type: application/octet-stream");
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header("Content-Disposition: attachment; filename=$fn");
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header("Content-Length: $fs");
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readfile($fp.$fn);
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exit;
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}
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}
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} else {
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$do_tcpdump = false;
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if (!empty($pconfig['host'])) {
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foreach (explode(' ', $pconfig['host']) as $token) {
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if (!in_array(trim($token), array('and', 'or','not')) && !is_ipaddr($token) && !is_subnet($token) ) {
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$input_errors[] = sprintf(gettext("A valid IP address or CIDR block must be specified. [%s]"), $token);
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}
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}
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}
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if (!empty($pconfig['port']) && !is_port(ltrim(trim($pconfig['port']), 'not'))) {
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$input_errors[] = gettext("Invalid value specified for port.");
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}
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if (!empty($pconfig['snaplen']) && (!is_numeric($pconfig['snaplen']) || $snaplen < 0)) {
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$input_errors[] = gettext("Invalid value specified for packet length.");
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}
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if (!empty($pconfig['count']) && (!is_numeric($pconfig['count']) || $count < 0)) {
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$input_errors[] = gettext("Invalid value specified for packet count.");
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}
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if (count($input_errors) == 0) {
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start_capture($pconfig);
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}
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} elseif (!empty($pconfig['stop'])) {
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stop_capture();
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} elseif (!empty($pconfig['remove'])) {
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if (file_exists('/root/packetcapture.cap')) {
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unlink ('/root/packetcapture.cap');
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}
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header("Location: diag_packet_capture.php");
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exit;
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}
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}
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include("head.inc"); ?>
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<body>
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<script type="text/javascript">
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$( document ).ready(function() {
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$("#view").click(function(){
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$.ajax("diag_packet_capture.php",{
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type: 'get',
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cache: false,
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dataType: "json",
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data: {view: 'view', 'dnsquery': $("#dnsquery:checked").val() ,'detail': $("#detail").val()},
|
||||
success: function(response) {
|
||||
var html = [];
|
||||
$.each(response, function(idx, line){
|
||||
html.push('<tr><td>'+line+'</td></tr>');
|
||||
});
|
||||
$("#capture_output").html(html.join(''));
|
||||
$("#capture").removeClass('hidden');
|
||||
// scroll to capture output
|
||||
$('html, body').animate({
|
||||
scrollTop: $("#capture").offset().top
|
||||
}, 2000);
|
||||
}
|
||||
});
|
||||
});
|
||||
});
|
||||
</script>
|
||||
|
||||
<?php
|
||||
include("fbegin.inc");
|
||||
?>
|
||||
|
||||
<section class="page-content-main">
|
||||
<div class="container-fluid">
|
||||
<div class="row">
|
||||
|
||||
<section class="col-xs-12">
|
||||
<div class="content-box">
|
||||
|
||||
<?php if (isset($input_errors) && count($input_errors) > 0) print_input_errors($input_errors); ?>
|
||||
|
||||
<header class="content-box-head container-fluid">
|
||||
<h3><?=gettext("Packet capture");?></h3>
|
||||
</header>
|
||||
|
||||
<div class="content-box-main">
|
||||
<div class="table-responsive">
|
||||
<form action="<?=$_SERVER['REQUEST_URI'];?>" method="post" name="iform" id="iform">
|
||||
<table class="table table-striped">
|
||||
<tbody>
|
||||
<tr>
|
||||
<td><?=gettext("Interface");?></td>
|
||||
<td>
|
||||
<select name="interface" class="form-control">
|
||||
<?php foreach ($interfaces as $iface => $ifacename): ?>
|
||||
<option value="<?=$iface;?>" <?php if ($selectedif == $iface) echo "selected=\"selected\""; ?>>
|
||||
<?php echo $ifacename;?>
|
||||
</option>
|
||||
<?php endforeach; ?>
|
||||
</select>
|
||||
<p class="text-muted"><em><small><?=gettext("Select the interface on which to capture traffic.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><?=gettext("Promiscuous");?></td>
|
||||
<td>
|
||||
<input name="promiscuous" type="checkbox"<?php if($_POST['promiscuous']) echo " checked=\"checked\""; ?> />
|
||||
<p class="text-muted"><em><small><?=gettext("If checked, the");?> <a target="_blank" href="http://www.freebsd.org/cgi/man.cgi?query=tcpdump&apropos=0&sektion=0&manpath=FreeBSD+8.3-stable&arch=default&format=html"><?= gettext("packet capture")?></a> <?= gettext("will be performed using promiscuous mode.");?>
|
||||
<br /><b><?=gettext("Note");?>: </b><?=gettext("Some network adapters do not support or work well in promiscuous mode.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><?=gettext("Address Family");?></td>
|
||||
<td>
|
||||
<select name="fam" class="form-control">
|
||||
<option value=""><?=gettext('Any') ?></option>
|
||||
<option value="ip" <?php if ($fam == "ip") echo "selected=\"selected\""; ?>><?= gettext('IPv4 Only') ?></option>
|
||||
<option value="ip6" <?php if ($fam == "ip6") echo "selected=\"selected\""; ?>><?= gettext('IPv6 Only') ?></option>
|
||||
</select>
|
||||
<p class="text-muted"><em><small><?=gettext("Select the type of traffic to be captured, either Any, IPv4 only or IPv6 only.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><?=gettext("Protocol");?></td>
|
||||
<td>
|
||||
<select name="proto" class="form-control">
|
||||
<option value=""><?=gettext('Any') ?></option>
|
||||
<option value="icmp" <?php if ($proto == "icmp") echo "selected=\"selected\""; ?>><?= gettext('ICMP') ?></option>
|
||||
<option value="!icmp" <?php if ($proto == "!icmp") echo "selected=\"selected\""; ?>><?= gettext('Exclude ICMP') ?></option>
|
||||
<option value="icmp6" <?php if ($proto == "icmp6") echo "selected=\"selected\""; ?>><?= gettext('ICMPv6') ?></option>
|
||||
<option value="!icmp6" <?php if ($proto == "!icmp6") echo "selected=\"selected\""; ?>><?= gettext('Exclude ICMPv6') ?></option>
|
||||
<option value="tcp" <?php if ($proto == "tcp") echo "selected=\"selected\""; ?>><?= gettext('TCP') ?></option>
|
||||
<option value="!tcp" <?php if ($proto == "!tcp") echo "selected=\"selected\""; ?>><?= gettext('Exclude TCP') ?></option>
|
||||
<option value="udp" <?php if ($proto == "udp") echo "selected=\"selected\""; ?>><?= gettext('UDP') ?></option>
|
||||
<option value="!udp" <?php if ($proto == "!udp") echo "selected=\"selected\""; ?>><?= gettext('Exclude UDP') ?></option>
|
||||
<option value="arp" <?php if ($proto == "arp") echo "selected=\"selected\""; ?>><?= gettext('ARP') ?></option>
|
||||
<option value="!arp" <?php if ($proto == "!arp") echo "selected=\"selected\""; ?>><?= gettext('Exclude ARP') ?></option>
|
||||
<option value="carp" <?php if ($proto == "carp") echo "selected=\"selected\""; ?>><?= gettext('CARP (VRRP)') ?></option>
|
||||
<option value="!carp" <?php if ($proto == "!carp") echo "selected=\"selected\""; ?>><?= gettext('Exclude CARP (VRRP)') ?></option>
|
||||
<option value="esp" <?php if ($proto == "esp") echo "selected=\"selected\""; ?>><?= gettext('ESP') ?></option>
|
||||
</select>
|
||||
<p class="text-muted"><em><small><?=gettext("Select the protocol to capture, or Any.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><?=gettext("Host Address");?></td>
|
||||
<td>
|
||||
<input name="host" class="form-control host" id="host" size="20" value="<?=htmlspecialchars($host);?>" />
|
||||
<p class="text-muted"><em><small><?=gettext("This value is either the Source or Destination IP address or subnet in CIDR notation. The packet capture will look for this address in either field.");?>
|
||||
<br /><?=gettext("Matching can be negated by preceding the value with \"!\". Multiple IP addresses or CIDR subnets may be specified. Comma (\",\") separated values perform a boolean \"and\". Separating with a pipe (\"|\") performs a boolean \"or\".");?>
|
||||
<br /><?=gettext("If you leave this field blank, all packets on the specified interface will be captured.");?>
|
||||
</small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><?=gettext("Port");?></td>
|
||||
<td>
|
||||
<input name="port" class="formfld unknown" id="port" size="5" value="<?=$port;?>" />
|
||||
|
||||
<p class="text-muted"><em><small><?=gettext("The port can be either the source or destination port. The packet capture will look for this port in either field.");?> <?=gettext("Leave blank if you do not want to filter by port.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><?=gettext("Packet Length");?></td>
|
||||
<td>
|
||||
<input name="snaplen" class="formfld unknown" id="snaplen" size="5" value="<?=$snaplen;?>" />
|
||||
<p class="text-muted"><em><small><?=gettext("The Packet length is the number of bytes of each packet that will be captured. Default value is 0, which will capture the entire frame regardless of its size.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><?=gettext("Count");?></td>
|
||||
<td>
|
||||
<input name="count" class="formfld unknown" id="count" size="5" value="<?=$count;?>" />
|
||||
<p class="text-muted"><em><small><?=gettext("This is the number of packets the packet capture will grab. Default value is 100.") . "<br />" . gettext("Enter 0 (zero) for no count limit.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
<tr>
|
||||
<td><?=gettext("Level of Detail");?></td>
|
||||
<td>
|
||||
<select name="detail" class="formselect" id="detail" size="1">
|
||||
<option value="normal" <?php if ($detail == "normal") echo "selected=\"selected\""; ?>><?=gettext("Normal");?></option>
|
||||
<option value="medium" <?php if ($detail == "medium") echo "selected=\"selected\""; ?>><?=gettext("Medium");?></option>
|
||||
<option value="high" <?php if ($detail == "high") echo "selected=\"selected\""; ?>><?=gettext("High");?></option>
|
||||
<option value="full" <?php if ($detail == "full") echo "selected=\"selected\""; ?>><?=gettext("Full");?></option>
|
||||
</select>
|
||||
<p class="text-muted"><em><small><?=gettext("This is the level of detail that will be displayed after hitting 'Stop' when the packets have been captured.") . "<br /><b>" .
|
||||
gettext("Note:") . "</b> " .
|
||||
gettext("This option does not affect the level of detail when downloading the packet capture.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
<tr>
|
||||
<td><?=gettext("Reverse DNS Lookup");?></td>
|
||||
<td>
|
||||
<input name="dnsquery" type="checkbox" <?php if($_POST['dnsquery']) echo " checked=\"checked\""; ?> />
|
||||
<p class="text-muted"><em><small><?=gettext("This check box will cause the packet capture to perform a reverse DNS lookup associated with all IP addresses.");?>
|
||||
<br /><b><?=gettext("Note");?>: </b><?=gettext("This option can cause delays for large packet captures.");?></small></em></p>
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
<tr>
|
||||
<td> </td>
|
||||
<td>
|
||||
<?php
|
||||
|
||||
/* check to see if packet capture tcpdump is already running */
|
||||
$processcheck = (trim(shell_exec("/bin/ps axw -O pid= | /usr/bin/grep tcpdump | /usr/bin/grep {$fn} | /usr/bin/egrep -v '(pflog|grep)'")));
|
||||
|
||||
if ($processcheck != "")
|
||||
$processisrunning = true;
|
||||
else
|
||||
$processisrunning = false;
|
||||
|
||||
if (($action == gettext("Stop") or $action == "") and $processisrunning != true)
|
||||
echo "<input type=\"submit\" class=\"btn\" name=\"startbtn\" value=\"" . gettext("Start") . "\" /> ";
|
||||
else {
|
||||
echo "<input type=\"submit\" class=\"btn\" name=\"stopbtn\" value=\"" . gettext("Stop") . "\" /> ";
|
||||
}
|
||||
if (file_exists($fp.$fn) and $processisrunning != true) {
|
||||
echo "<input type=\"submit\" class=\"btn\" name=\"viewbtn\" value=\"" . gettext("View Capture") . "\" /> ";
|
||||
echo "<input type=\"submit\" class=\"btn\" name=\"downloadbtn\" value=\"" . gettext("Download Capture") . "\" />";
|
||||
echo "<br />" . gettext("The packet capture file was last updated:") . " " . date("F jS, Y g:i:s a.", filemtime($fp.$fn));
|
||||
}
|
||||
?>
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
</tbody>
|
||||
</table>
|
||||
</form>
|
||||
</div>
|
||||
</div>
|
||||
</section>
|
||||
|
||||
|
||||
|
||||
<div class="container-fluid">
|
||||
<div class="row">
|
||||
<section class="col-xs-12">
|
||||
<div class="content-box">
|
||||
<?php if (isset($input_errors) && count($input_errors) > 0) print_input_errors($input_errors); ?>
|
||||
<div class="table-responsive">
|
||||
<form method="post" name="iform" id="iform">
|
||||
<table class="table table-striped">
|
||||
<thead>
|
||||
<tr>
|
||||
<td width="22%"><strong><?=gettext("Packet capture");?></strong></td>
|
||||
<td width="78%" align="right">
|
||||
<small><?=gettext("full help"); ?> </small>
|
||||
<i class="fa fa-toggle-off text-danger" style="cursor: pointer;" id="show_all_help_page" type="button"></i></a>
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td><a id="help_for_if" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Interface");?></td>
|
||||
<td>
|
||||
<select name="interface" class="form-control">
|
||||
<?php
|
||||
foreach ($interfaces as $iface => $ifacename): ?>
|
||||
<option value="<?=$iface;?>" <?=$pconfig['interface'] == $iface ? "selected=\"selected\"" : ""; ?>>
|
||||
<?=$ifacename;?>
|
||||
</option>
|
||||
<?php
|
||||
endforeach; ?>
|
||||
</select>
|
||||
<div class="hidden" for="help_for_if">
|
||||
<?=gettext("Select the interface on which to capture traffic.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a id="help_for_promiscuous" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Promiscuous");?></td>
|
||||
<td>
|
||||
<input name="promiscuous" type="checkbox" <?= !empty($pconfig['promiscuous']) ? " checked=\"checked\"" : ""; ?> />
|
||||
<div class="hidden" for="help_for_promiscuous">
|
||||
<?=gettext("If checked, the");?> <a target="_blank" href="http://www.freebsd.org/cgi/man.cgi?query=tcpdump&apropos=0&sektion=0&manpath=FreeBSD+8.3-stable&arch=default&format=html"><?= gettext("packet capture")?></a> <?= gettext("will be performed using promiscuous mode.");?>
|
||||
<br /><b><?=gettext("Note");?>: </b><?=gettext("Some network adapters do not support or work well in promiscuous mode.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a id="help_for_fam" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Address Family");?></td>
|
||||
<td>
|
||||
<select name="fam" class="form-control">
|
||||
<option value=""><?=gettext('Any') ?></option>
|
||||
<option value="ip" <?=!empty($pconfig['fam'] == "ip") ? "selected=\"selected\"" : ""; ?>>
|
||||
<?= gettext('IPv4 Only') ?>
|
||||
</option>
|
||||
<option value="ip6" <?=!empty($pconfig['fam'] == "ip6") ? "selected=\"selected\"" : ""; ?>>
|
||||
<?= gettext('IPv6 Only') ?>
|
||||
</option>
|
||||
</select>
|
||||
<div class="hidden" for="help_for_fam">
|
||||
<?=gettext("Select the type of traffic to be captured, either Any, IPv4 only or IPv6 only.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a id="help_for_proto" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Protocol");?></td>
|
||||
<td>
|
||||
<select name="proto" class="form-control">
|
||||
<option value=""><?=gettext('Any') ?></option>
|
||||
<option value="icmp" <?=$pconfig['proto'] == "icmp" ? "selected=\"selected\"" : ""; ?>><?= gettext('ICMP') ?></option>
|
||||
<option value="!icmp" <?=$pconfig['proto'] == "!icmp" ? "selected=\"selected\"" : ""; ?>><?= gettext('Exclude ICMP') ?></option>
|
||||
<option value="icmp6" <?=$pconfig['proto'] == "icmp6" ? "selected=\"selected\"" : ""; ?>><?= gettext('ICMPv6') ?></option>
|
||||
<option value="!icmp6" <?=$pconfig['proto'] == "!icmp6" ? "selected=\"selected\"" : ""; ?>><?= gettext('Exclude ICMPv6') ?></option>
|
||||
<option value="tcp" <?=$pconfig['proto'] == "tcp" ? "selected=\"selected\"" : ""; ?>><?= gettext('TCP') ?></option>
|
||||
<option value="!tcp" <?=$pconfig['proto'] == "!tcp" ? "selected=\"selected\"" : ""; ?>><?= gettext('Exclude TCP') ?></option>
|
||||
<option value="udp" <?=$pconfig['proto'] == "udp" ? "selected=\"selected\"" : ""; ?>><?= gettext('UDP') ?></option>
|
||||
<option value="!udp" <?=$pconfig['proto'] == "!udp" ? "selected=\"selected\"" : ""; ?>><?= gettext('Exclude UDP') ?></option>
|
||||
<option value="arp" <?=$pconfig['proto'] == "arp" ? "selected=\"selected\"" : ""; ?>><?= gettext('ARP') ?></option>
|
||||
<option value="!arp" <?=$pconfig['proto'] == "!arp" ? "selected=\"selected\"" : ""; ?>><?= gettext('Exclude ARP') ?></option>
|
||||
<option value="carp" <?=$pconfig['proto'] == "carp" ? "selected=\"selected\"" : ""; ?>><?= gettext('CARP (VRRP)') ?></option>
|
||||
<option value="!carp" <?=$pconfig['proto'] == "!carp" ? "selected=\"selected\"" : ""; ?>><?= gettext('Exclude CARP (VRRP)') ?></option>
|
||||
<option value="esp" <?=$pconfig['proto'] == "esp" ? "selected=\"selected\"" : ""; ?>><?= gettext('ESP') ?></option>
|
||||
</select>
|
||||
<div class="hidden" for="help_for_proto">
|
||||
<?=gettext("Select the protocol to capture, or Any.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a id="help_for_host" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Host Address");?></td>
|
||||
<td>
|
||||
<input type="text" name="host" value="<?=$pconfig['host'];?>" />
|
||||
<div class="hidden" for="help_for_host">
|
||||
<?=gettext("This value is either the Source or Destination IP address or subnet in CIDR notation. The packet capture will look for this address in either field.");?>
|
||||
<?=gettext("Matching can be negated by preceding the value with \"not\". Multiple IP addresses or CIDR subnets may be specified as boolean expresion.");?>
|
||||
<?=gettext("If you leave this field blank, all packets on the specified interface will be captured.");?>
|
||||
<br/><br/><?=gettext("Example:");?> not 10.0.0.0/24 not and not 11.0.0.1
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a id="help_for_port" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Port");?></td>
|
||||
<td>
|
||||
<input type="text" name="port" value="<?=$pconfig['port'];?>" />
|
||||
<div class="hidden" for="help_for_port">
|
||||
<?=gettext("The port can be either the source or destination port. The packet capture will look for this port in either field.");?> <?=gettext("Leave blank if you do not want to filter by port.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a id="help_for_snaplen" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Packet Length");?></td>
|
||||
<td>
|
||||
<input type="text" name="snaplen" value="<?=$pconfig['snaplen'];?>" />
|
||||
<div class="hidden" for="help_for_snaplen">
|
||||
<?=gettext("The Packet length is the number of bytes of each packet that will be captured. Default value is 0, which will capture the entire frame regardless of its size.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a id="help_for_count" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Count");?></td>
|
||||
<td>
|
||||
<input type="text" name="count" class="formfld unknown" id="count" size="5" value="<?=$pconfig['count'];?>" />
|
||||
<div class="hidden" for="help_for_count">
|
||||
<?=gettext("This is the number of packets the packet capture will grab. Default value is 100.") . "<br />" . gettext("Enter 0 (zero) for no count limit.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td colspan="2"><b><?=gettext("View settings");?></b></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a id="help_for_detail" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Level of Detail");?></td>
|
||||
<td>
|
||||
<select name="detail" class="selectpicker" id="detail">
|
||||
<option value="normal"><?=gettext("Normal");?></option>
|
||||
<option value="medium"><?=gettext("Medium");?></option>
|
||||
<option value="high"><?=gettext("High");?></option>
|
||||
<option value="full"><?=gettext("Full");?></option>
|
||||
</select>
|
||||
<div class="hidden" for="help_for_detail">
|
||||
<?=gettext("This is the level of detail that will be displayed after hitting 'Stop' when the packets have been captured.") . "<br /><b>" .
|
||||
gettext("Note:") . "</b> " .
|
||||
gettext("This option does not affect the level of detail when downloading the packet capture.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
$title = '';
|
||||
<tr>
|
||||
<td><a id="help_for_dnsquery" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Reverse DNS Lookup");?></td>
|
||||
<td>
|
||||
<input name="dnsquery" id="dnsquery" type="checkbox"/>
|
||||
<div class="hidden" for="help_for_dnsquery">
|
||||
<?=gettext("This check box will cause the packet capture to perform a reverse DNS lookup associated with all IP addresses.");?>
|
||||
<br /><b><?=gettext("Note");?>: </b><?=gettext("This option can cause delays for large packet captures.");?>
|
||||
</div>
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
if ($processisrunning == true) {
|
||||
$title = gettext("Packet Capture is running.");
|
||||
}
|
||||
|
||||
if ($do_tcpdump) {
|
||||
$matches = array();
|
||||
|
||||
if (in_array($fam, $fams))
|
||||
$matches[] = $fam;
|
||||
|
||||
if (in_array($proto, $protos)) {
|
||||
$matches[] = fixup_not($proto);
|
||||
}
|
||||
|
||||
if ($port != "")
|
||||
$matches[] = "port ".fixup_not($port);
|
||||
|
||||
if ($host != "") {
|
||||
$hostmatch = "";
|
||||
$hostcount = 0;
|
||||
foreach ($hosts as $h) {
|
||||
$h = fixup_host($h, $hostcount++);
|
||||
if (!empty($h))
|
||||
$hostmatch .= " " . $h;
|
||||
}
|
||||
if (!empty($hostmatch))
|
||||
$matches[] = "({$hostmatch})";
|
||||
}
|
||||
|
||||
if ($count != "0" ) {
|
||||
$searchcount = "-c " . $count;
|
||||
} else {
|
||||
$searchcount = "";
|
||||
}
|
||||
|
||||
$selectedif = get_real_interface($selectedif);
|
||||
|
||||
if ($action == gettext("Start")) {
|
||||
$matchstr = implode($matches, " and ");
|
||||
$title = gettext("Packet Capture is running.");
|
||||
|
||||
$cmd = "/usr/sbin/tcpdump -i {$selectedif} {$disablepromiscuous} {$searchcount} -s {$snaplen} -w {$fp}{$fn} " . escapeshellarg($matchstr);
|
||||
// Debug
|
||||
//echo $cmd;
|
||||
mwexec_bg ($cmd);
|
||||
} else {
|
||||
$show_data = true;
|
||||
//action = stop
|
||||
$title = gettext("Packet Capture stopped.") . " " . gettext("Packets Captured:");
|
||||
}
|
||||
}
|
||||
|
||||
if (!empty($title)): ?>
|
||||
|
||||
<section class="col-xs-12">
|
||||
<div class="content-box">
|
||||
<header class="content-box-head container-fluid">
|
||||
<h3><?=$title; ?></h3>
|
||||
</header>
|
||||
<?php if (!empty($show_data)): ?>
|
||||
<div class="content-box-main col-xs-12">
|
||||
|
||||
<script type="text/javascript">
|
||||
//<![CDATA[
|
||||
window.onload=function(){
|
||||
document.getElementById("packetsCaptured").wrap='off';
|
||||
}
|
||||
//]]>
|
||||
</script>
|
||||
<pre id="packetsCaptured" style="width:98%" readonly="readonly"><?php
|
||||
$detail_args = "";
|
||||
switch ($detail) {
|
||||
case "full":
|
||||
$detail_args = "-vv -e";
|
||||
break;
|
||||
case "high":
|
||||
$detail_args = "-vv";
|
||||
break;
|
||||
case "medium":
|
||||
$detail_args = "-v";
|
||||
break;
|
||||
case "normal":
|
||||
default:
|
||||
$detail_args = "-q";
|
||||
break;
|
||||
}
|
||||
system("/usr/sbin/tcpdump {$disabledns} {$detail_args} -r {$fp}{$fn}");
|
||||
|
||||
?>
|
||||
</pre>
|
||||
|
||||
|
||||
</div>
|
||||
<?php endif; ?>
|
||||
</div>
|
||||
</section>
|
||||
|
||||
<?php endif; ?>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<tr>
|
||||
<td> </td>
|
||||
<td>
|
||||
<?php
|
||||
if (capture_running()):?>
|
||||
<input type="submit" class="btn" name="stop" value="<?=gettext("Stop");?>"/>
|
||||
<?php
|
||||
else:?>
|
||||
<input type="submit" class="btn" name="start" value="<?=gettext("Start");?>"/>
|
||||
<?php
|
||||
if (file_exists('/root/packetcapture.cap')):?>
|
||||
<button type="button" id="view" class="btn"> <?=gettext("View Capture");?> </button>
|
||||
<a href="?download" type="submit" class="btn"><?=gettext("Download Capture");?></a>
|
||||
<input type="submit" class="btn" name="remove" value="<?=gettext("Delete Capture");?>"/>
|
||||
<?php
|
||||
endif;
|
||||
endif;?>
|
||||
</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
</form>
|
||||
</div>
|
||||
</div>
|
||||
</section>
|
||||
<section class="col-xs-12 hidden" id="capture">
|
||||
<div class="content-box">
|
||||
<div class="table-responsive">
|
||||
<table class="table table-condensed">
|
||||
<thead>
|
||||
<tr>
|
||||
<th><?=gettext("Capture output");?></th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody style="white-space: pre-wrap; font-family: monospace;" id="capture_output">
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</section>
|
||||
</div>
|
||||
</div>
|
||||
</section>
|
||||
|
||||
|
||||
<?php
|
||||
include("foot.inc");
|
||||
?>
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user