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ab6a5cfc
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Scott Ullrich
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<?php
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/*
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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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*/
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f35abee2
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jim-p
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/*
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13d193c2
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Scott Ullrich
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pfSense_BUILDER_BINARIES: /bin/ps /usr/bin/grep /usr/sbin/tcpdump
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pfSense_MODULE: routing
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*/
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| 31 |
6b07c15a
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Matthew Grooms
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##|+PRIV
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##|*IDENT=page-diagnostics-packetcapture
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##|*NAME=Diagnostics: Packet Capture page
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##|*DESCR=Allow access to the 'Diagnostics: Packet Capture' page.
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##|*MATCH=diag_packet_capture.php*
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##|-PRIV
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7c9a30c8
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jim-p
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$allowautocomplete = true;
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f257c139
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jim-p
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if ($_POST['downloadbtn'] == gettext("Download Capture"))
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$nocsrf = true;
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| 43 |
1c550bed
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Renato Botelho
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$pgtitle = array(gettext("Diagnostics"), gettext("Packet Capture"));
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| 44 |
d7cd7129
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Scott Ullrich
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require_once("guiconfig.inc");
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require_once("pfsense-utils.inc");
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| 46 |
ab6a5cfc
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Scott Ullrich
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| 47 |
4e7d1665
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Scott Ullrich
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$fp = "/root/";
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| 48 |
ab6a5cfc
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Scott Ullrich
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$fn = "packetcapture.cap";
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| 49 |
68ed7d9d
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Chris Buechler
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$snaplen = 0;//default packet length
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| 50 |
ab6a5cfc
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Scott Ullrich
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$count = 100;//default number of packets to capture
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fd8774c0
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jim-p
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$fams = array('ip', 'ip6');
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43d735de
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jim-p
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$protos = array('icmp', 'icmp6', 'tcp', 'udp', 'arp', 'carp', 'esp');
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fd8774c0
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jim-p
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| 55 |
391cd070
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Darren Embry
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$input_errors = array();
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f7b6c87a
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Darren Embry
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$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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foreach (array('server', 'client') as $mode) {
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if (is_array($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($setting['description']);
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}
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}
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}
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}
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ab6a5cfc
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Scott Ullrich
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if ($_POST) {
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$host = $_POST['host'];
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$selectedif = $_POST['interface'];
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$count = $_POST['count'];
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391cd070
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Darren Embry
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$snaplen = $_POST['snaplen'];
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| 75 |
ab6a5cfc
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Scott Ullrich
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$port = $_POST['port'];
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$detail = $_POST['detail'];
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f35abee2
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jim-p
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$fam = $_POST['fam'];
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fd8774c0
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jim-p
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$proto = $_POST['proto'];
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f35abee2
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jim-p
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| 80 |
20e7e444
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jim-p
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if (!array_key_exists($selectedif, $interfaces)) {
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622caf8f
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Darren Embry
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$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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e88ea344
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Erik Fonnesbeck
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if ($proto !== "" && !in_array($proto, $protos)) {
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622caf8f
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Darren Embry
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$input_errors[] = gettext("Invalid protocol.");
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}
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391cd070
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Darren Embry
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if ($host != "") {
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if (!is_subnet($host) && !is_ipaddr($host)) {
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$input_errors[] = sprintf(gettext("A valid IP address or CIDR block must be specified. [%s]"), $host);
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}
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}
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if ($port != "") {
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if (!is_port($port)) {
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$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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| 102 |
b39ca83c
|
Scott Ullrich
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} else {
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391cd070
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Darren Embry
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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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| 113 |
ab6a5cfc
|
Scott Ullrich
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}
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| 115 |
391cd070
|
Darren Embry
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if (!count($input_errors)) {
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$do_tcpdump = true;
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| 117 |
f35abee2
|
jim-p
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| 118 |
391cd070
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Darren Embry
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conf_mount_rw();
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| 119 |
ab6a5cfc
|
Scott Ullrich
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| 120 |
391cd070
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Darren Embry
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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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$disabledns = "-n";
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}
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| 127 |
d5c2fde5
|
Scott Ullrich
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| 128 |
391cd070
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Darren Embry
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if ($_POST['startbtn'] != "" ) {
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$action = gettext("Start");
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| 130 |
d5c2fde5
|
Scott Ullrich
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| 131 |
391cd070
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Darren Embry
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//delete previous packet capture if it exists
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if (file_exists($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 $process_id");
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}
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| 148 |
d5c2fde5
|
Scott Ullrich
|
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| 149 |
391cd070
|
Darren Embry
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} elseif ($_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.$fn);
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exit;
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}
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| 158 |
ab6a5cfc
|
Scott Ullrich
|
}
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| 159 |
b39ca83c
|
Scott Ullrich
|
} else {
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| 160 |
ab6a5cfc
|
Scott Ullrich
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$do_tcpdump = false;
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}
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| 162 |
f7b6c87a
|
Darren Embry
|
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| 163 |
ab6a5cfc
|
Scott Ullrich
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include("head.inc"); ?>
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| 164 |
b39ca83c
|
Scott Ullrich
|
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| 165 |
ab6a5cfc
|
Scott Ullrich
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<body link="#000000" vlink="#0000CC" alink="#0000CC">
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| 166 |
b39ca83c
|
Scott Ullrich
|
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| 167 |
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<?php
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| 168 |
f35abee2
|
jim-p
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include("fbegin.inc");
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| 169 |
b39ca83c
|
Scott Ullrich
|
?>
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| 170 |
ab6a5cfc
|
Scott Ullrich
|
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| 171 |
391cd070
|
Darren Embry
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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| 172 |
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| 173 |
ab6a5cfc
|
Scott Ullrich
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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| 174 |
89fae3e7
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jim-p
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<tr><td>
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<form action="diag_packet_capture.php" method="post" name="iform" id="iform">
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<table width="100%" border="0" cellpadding="6" cellspacing="0">
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| 177 |
f35abee2
|
jim-p
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<tr>
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| 178 |
89fae3e7
|
jim-p
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<td colspan="2" valign="top" class="listtopic"><?=gettext("Packet capture");?></td>
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| 179 |
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</tr>
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| 180 |
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<tr>
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<td width="17%" valign="top" class="vncellreq"><?=gettext("Interface");?></td>
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| 182 |
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<td width="83%" class="vtable">
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<select name="interface">
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| 184 |
391cd070
|
Darren Embry
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<?php
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?>
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| 186 |
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<?php foreach ($interfaces as $iface => $ifacename): ?>
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<option value="<?=$iface;?>" <?php if ($selectedif == $iface) echo "selected"; ?>>
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| 188 |
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<?php echo $ifacename;?>
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| 189 |
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</option>
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| 190 |
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<?php endforeach; ?>
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| 191 |
89fae3e7
|
jim-p
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</select>
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<br/><?=gettext("Select the interface on which to capture traffic.");?>
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| 193 |
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</td>
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| 194 |
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</tr>
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| 195 |
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<tr>
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| 196 |
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<td width="17%" valign="top" class="vncellreq"><?=gettext("Address Family");?></td>
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| 197 |
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<td width="83%" class="vtable">
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| 198 |
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<select name="fam">
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| 199 |
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<option value="">Any</option>
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| 200 |
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<option value="ip" <?php if ($fam == "ip") echo "selected"; ?>>IPv4 Only</option>
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| 201 |
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<option value="ip6" <?php if ($fam == "ip6") echo "selected"; ?>>IPv6 Only</option>
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| 202 |
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</select>
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| 203 |
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<br/><?=gettext("Select the type of traffic to be captured, either Any, IPv4 only or IPv6 only.");?>
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| 204 |
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</td>
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| 205 |
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</tr>
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| 206 |
fd8774c0
|
jim-p
|
<tr>
|
| 207 |
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<td width="17%" valign="top" class="vncellreq"><?=gettext("Protocol");?></td>
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| 208 |
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<td width="83%" class="vtable">
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| 209 |
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<select name="proto">
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| 210 |
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<option value="">Any</option>
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| 211 |
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<option value="icmp" <?php if ($proto == "icmp") echo "selected"; ?>>ICMP</option>
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| 212 |
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<option value="icmp6" <?php if ($proto == "icmp6") echo "selected"; ?>>ICMPv6</option>
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| 213 |
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<option value="tcp" <?php if ($proto == "tcp") echo "selected"; ?>>TCP</option>
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| 214 |
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<option value="udp" <?php if ($proto == "udp") echo "selected"; ?>>UDP</option>
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| 215 |
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<option value="arp" <?php if ($proto == "arp") echo "selected"; ?>>ARP</option>
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| 216 |
43d735de
|
jim-p
|
<option value="carp" <?php if ($proto == "carp") echo "selected"; ?>>CARP (VRRP)</option>
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| 217 |
fd8774c0
|
jim-p
|
<option value="esp" <?php if ($proto == "esp") echo "selected"; ?>>ESP</option>
|
| 218 |
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</select>
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| 219 |
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<br/><?=gettext("Select the protocol to capture, or Any.");?>
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| 220 |
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</td>
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| 221 |
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</tr>
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| 222 |
89fae3e7
|
jim-p
|
<tr>
|
| 223 |
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<td width="17%" valign="top" class="vncellreq"><?=gettext("Host Address");?></td>
|
| 224 |
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<td width="83%" class="vtable">
|
| 225 |
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<input name="host" type="text" class="formfld host" id="host" size="20" value="<?=htmlspecialchars($host);?>">
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| 226 |
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<br/><?=gettext("This value is either the Source or Destination IP address or subnet in CIDR notation. The packet capture will look for this address in either field.");?>
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| 227 |
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<br/><?=gettext("This value can be a domain name or IP address, or subnet in CIDR notation.");?>
|
| 228 |
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<br/><?=gettext("If you leave this field blank, all packets on the specified interface will be captured.");?>
|
| 229 |
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</td>
|
| 230 |
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</tr>
|
| 231 |
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<tr>
|
| 232 |
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<td width="17%" valign="top" class="vncellreq"><?=gettext("Port");?></td>
|
| 233 |
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<td width="83%" class="vtable">
|
| 234 |
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<input name="port" type="text" class="formfld unknown" id="port" size="5" value="<?=$port;?>">
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| 235 |
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<br/><?=gettext("The port can be either the source or destination port. The packet capture will look for this port in either field.");?>
|
| 236 |
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<br/><?=gettext("Leave blank if you do not want to filter by port.");?>
|
| 237 |
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</td>
|
| 238 |
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</tr>
|
| 239 |
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<tr>
|
| 240 |
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<td width="17%" valign="top" class="vncellreq"><?=gettext("Packet Length");?></td>
|
| 241 |
|
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<td width="83%" class="vtable">
|
| 242 |
|
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<input name="snaplen" type="text" class="formfld unknown" id="snaplen" size="5" value="<?=$snaplen;?>">
|
| 243 |
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<br/><?=gettext("The Packet length is the number of bytes of each packet that will be captured. Default value is 0, which will capture the entire frame regardless of its size.");?>
|
| 244 |
|
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</td>
|
| 245 |
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</tr>
|
| 246 |
|
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<tr>
|
| 247 |
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<td width="17%" valign="top" class="vncellreq"><?=gettext("Count");?></td>
|
| 248 |
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<td width="83%" class="vtable">
|
| 249 |
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<input name="count" type="text" class="formfld unknown" id="count" size="5" value="<?=$count;?>">
|
| 250 |
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<br/><?=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.");?>
|
| 251 |
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</tr>
|
| 252 |
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<tr>
|
| 253 |
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<td width="17%" valign="top" class="vncellreq"><?=gettext("Level of Detail");?></td>
|
| 254 |
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<td width="83%" class="vtable">
|
| 255 |
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<select name="detail" type="text" class="formselect" id="detail" size="1">
|
| 256 |
622caf8f
|
Darren Embry
|
<option value="normal" <?php if ($detail == "normal") echo "selected"; ?>><?=gettext("Normal");?></option>
|
| 257 |
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<option value="medium" <?php if ($detail == "medium") echo "selected"; ?>><?=gettext("Medium");?></option>
|
| 258 |
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<option value="high" <?php if ($detail == "high") echo "selected"; ?>><?=gettext("High");?></option>
|
| 259 |
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<option value="full" <?php if ($detail == "full") echo "selected"; ?>><?=gettext("Full");?></option>
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| 260 |
89fae3e7
|
jim-p
|
</select>
|
| 261 |
|
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<br/><?=gettext("This is the level of detail that will be displayed after hitting 'Stop' when the packets have been captured.") . "<br/><b>" .
|
| 262 |
|
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gettext("Note:") . "</b> " .
|
| 263 |
|
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gettext("This option does not affect the level of detail when downloading the packet capture.");?>
|
| 264 |
|
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</tr>
|
| 265 |
|
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<tr>
|
| 266 |
|
|
<td width="17%" valign="top" class="vncellreq"><?=gettext("Reverse DNS Lookup");?></td>
|
| 267 |
|
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<td width="83%" class="vtable">
|
| 268 |
|
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<input name="dnsquery" type="checkbox"<?php if($_POST['dnsquery']) echo " CHECKED"; ?>>
|
| 269 |
|
|
<br/><?=gettext("This check box will cause the packet capture to perform a reverse DNS lookup associated with all IP addresses.");?>
|
| 270 |
|
|
<br/><b><?=gettext("Note");?>: </b><?=gettext("This option can cause delays for large packet captures.");?>
|
| 271 |
|
|
</td>
|
| 272 |
|
|
</tr>
|
| 273 |
|
|
<tr>
|
| 274 |
|
|
<td width="17%" valign="top"> </td>
|
| 275 |
|
|
<td width="83%">
|
| 276 |
b39ca83c
|
Scott Ullrich
|
<?php
|
| 277 |
d5c2fde5
|
Scott Ullrich
|
|
| 278 |
89fae3e7
|
jim-p
|
/* check to see if packet capture tcpdump is already running */
|
| 279 |
|
|
$processcheck = (trim(shell_exec("/bin/ps axw -O pid= | /usr/bin/grep tcpdump | /usr/bin/grep {$fn} | /usr/bin/egrep -v '(pflog|grep)'")));
|
| 280 |
|
|
|
| 281 |
|
|
if ($processcheck != "")
|
| 282 |
|
|
$processisrunning = true;
|
| 283 |
|
|
else
|
| 284 |
|
|
$processisrunning = false;
|
| 285 |
|
|
|
| 286 |
|
|
if (($action == gettext("Stop") or $action == "") and $processisrunning != true)
|
| 287 |
|
|
echo "<input type=\"submit\" name=\"startbtn\" value=\"" . gettext("Start") . "\"> ";
|
| 288 |
|
|
else {
|
| 289 |
|
|
echo "<input type=\"submit\" name=\"stopbtn\" value=\"" . gettext("Stop") . "\"> ";
|
| 290 |
|
|
}
|
| 291 |
|
|
if (file_exists($fp.$fn) and $processisrunning != true) {
|
| 292 |
b397879f
|
jim-p
|
echo "<input type=\"submit\" name=\"viewbtn\" value=\"" . gettext("View Capture") . "\"> ";
|
| 293 |
89fae3e7
|
jim-p
|
echo "<input type=\"submit\" name=\"downloadbtn\" value=\"" . gettext("Download Capture") . "\">";
|
| 294 |
b397879f
|
jim-p
|
echo "<br/>" . gettext("The packet capture file was last updated:") . " " . date("F jS, Y g:i:s a.", filemtime($fp.$fn));
|
| 295 |
89fae3e7
|
jim-p
|
}
|
| 296 |
b39ca83c
|
Scott Ullrich
|
?>
|
| 297 |
89fae3e7
|
jim-p
|
</td>
|
| 298 |
|
|
</tr>
|
| 299 |
77877238
|
jim-p
|
</table>
|
| 300 |
|
|
</form>
|
| 301 |
|
|
<table width="100%" border="0" cellpadding="6" cellspacing="0">
|
| 302 |
89fae3e7
|
jim-p
|
<tr>
|
| 303 |
|
|
<td valign="top" colspan="2">
|
| 304 |
b39ca83c
|
Scott Ullrich
|
<?php
|
| 305 |
89fae3e7
|
jim-p
|
echo "<font face='terminal' size='2'>";
|
| 306 |
|
|
if ($processisrunning == true)
|
| 307 |
622caf8f
|
Darren Embry
|
echo("<strong>" . gettext("Packet Capture is running.") . "</strong><br/>");
|
| 308 |
89fae3e7
|
jim-p
|
|
| 309 |
|
|
if ($do_tcpdump) {
|
| 310 |
|
|
$matches = array();
|
| 311 |
|
|
|
| 312 |
fd8774c0
|
jim-p
|
if (in_array($fam, $fams))
|
| 313 |
89fae3e7
|
jim-p
|
$matches[] = $fam;
|
| 314 |
|
|
|
| 315 |
43d735de
|
jim-p
|
if (in_array($proto, $protos)) {
|
| 316 |
|
|
if ($proto == "carp") {
|
| 317 |
|
|
$matches[] = 'proto 112';
|
| 318 |
|
|
} else {
|
| 319 |
|
|
$matches[] = $proto;
|
| 320 |
|
|
}
|
| 321 |
|
|
}
|
| 322 |
fd8774c0
|
jim-p
|
|
| 323 |
89fae3e7
|
jim-p
|
if ($port != "")
|
| 324 |
|
|
$matches[] = "port ".$port;
|
| 325 |
|
|
|
| 326 |
|
|
if ($host != "") {
|
| 327 |
|
|
if (is_ipaddr($host))
|
| 328 |
|
|
$matches[] = "host " . $host;
|
| 329 |
|
|
elseif (is_subnet($host))
|
| 330 |
|
|
$matches[] = "net " . $host;
|
| 331 |
|
|
}
|
| 332 |
|
|
|
| 333 |
|
|
if ($count != "0" ) {
|
| 334 |
|
|
$searchcount = "-c " . $count;
|
| 335 |
|
|
} else {
|
| 336 |
|
|
$searchcount = "";
|
| 337 |
|
|
}
|
| 338 |
|
|
|
| 339 |
|
|
$selectedif = convert_friendly_interface_to_real_interface_name($selectedif);
|
| 340 |
|
|
|
| 341 |
|
|
if ($action == gettext("Start")) {
|
| 342 |
|
|
$matchstr = implode($matches, " and ");
|
| 343 |
|
|
echo("<strong>" . gettext("Packet Capture is running.") . "</strong><br/>");
|
| 344 |
391cd070
|
Darren Embry
|
mwexec_bg ("/usr/sbin/tcpdump -i $selectedif $searchcount -s $snaplen -w $fp$fn $matchstr");
|
| 345 |
89fae3e7
|
jim-p
|
} else {
|
| 346 |
|
|
//action = stop
|
| 347 |
|
|
echo("<strong>" . gettext("Packet Capture stopped.") . "<br/><br/>" . gettext("Packets Captured:") . "</strong><br/>");
|
| 348 |
b39ca83c
|
Scott Ullrich
|
?>
|
| 349 |
89fae3e7
|
jim-p
|
<textarea style="width:98%" name="code" rows="15" cols="66" wrap="off" readonly="readonly">
|
| 350 |
b39ca83c
|
Scott Ullrich
|
<?php
|
| 351 |
622caf8f
|
Darren Embry
|
$detail_args = "";
|
| 352 |
|
|
switch ($detail) {
|
| 353 |
|
|
case "full":
|
| 354 |
|
|
$detail_args = "-vv -e";
|
| 355 |
|
|
break;
|
| 356 |
|
|
case "high":
|
| 357 |
|
|
$detail_args = "-vv";
|
| 358 |
|
|
break;
|
| 359 |
|
|
case "medium":
|
| 360 |
|
|
$detail_args = "-v";
|
| 361 |
|
|
break;
|
| 362 |
|
|
case "normal":
|
| 363 |
|
|
default:
|
| 364 |
|
|
$detail_args = "-q";
|
| 365 |
|
|
break;
|
| 366 |
|
|
}
|
| 367 |
|
|
system("/usr/sbin/tcpdump $disabledns $detail_args -r $fp$fn");
|
| 368 |
b39ca83c
|
Scott Ullrich
|
|
| 369 |
89fae3e7
|
jim-p
|
conf_mount_ro();
|
| 370 |
b39ca83c
|
Scott Ullrich
|
?>
|
| 371 |
89fae3e7
|
jim-p
|
</textarea>
|
| 372 |
b39ca83c
|
Scott Ullrich
|
<?php
|
| 373 |
89fae3e7
|
jim-p
|
}
|
| 374 |
|
|
}
|
| 375 |
b39ca83c
|
Scott Ullrich
|
?>
|
| 376 |
89fae3e7
|
jim-p
|
</td>
|
| 377 |
|
|
</tr>
|
| 378 |
|
|
</table>
|
| 379 |
|
|
</td></tr>
|
| 380 |
b39ca83c
|
Scott Ullrich
|
</table>
|
| 381 |
4e7d1665
|
Scott Ullrich
|
|
| 382 |
f35abee2
|
jim-p
|
<?php
|
| 383 |
|
|
include("fend.inc");
|
| 384 |
4e7d1665
|
Scott Ullrich
|
?>
|