mirror of
https://github.com/Ysurac/openmptcprouter-feeds.git
synced 2025-02-12 10:31:51 +00:00
Add luci-app-packet-capture
This commit is contained in:
Ycarus (Yannick Chabanois)
parent
19dde3a38a
commit
93694b5983
9 changed files with 489 additions and 2 deletions
14
luci-app-packet-capture/Makefile
Normal file
14
luci-app-packet-capture/Makefile
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# Copyright 2020 Wojciech Jowsa (wojciech.jowsa@gmail.com)
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# This is free software, licensed under the Apache License, Version 2.0
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include $(TOPDIR)/rules.mk
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LUCI_TITLE:=Packet capture application
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LUCI_DEPENDS:=+luci-mod-admin-full +tcpdump +uhttpd-mod-ubus +coreutils +coreutils-timeout
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PKG_MAINTAINER:=Wojciech Jowsa <wojciech.jowsa@gmail.com>
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PKG_LICENSE:=Apache-2.0
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include $(TOPDIR)/feeds/luci/luci.mk
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# call BuildPackage - OpenWrt buildroot signatureet
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'use strict';
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'require rpc';
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'require uci';
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'require ui';
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'require fs';
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'require form';
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'require network';
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'require tools.widgets as widgets';
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var eventSource,
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captureFilePoll,
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hostName;
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function stopTcpdump() {
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fs.exec("/usr/libexec/packet_capture_stop").then(function(replay) {
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if (eventSource)
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eventSource.close();
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}.bind(this)).catch(function(error) {
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console.log(error);
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});
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}
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window.addEventListener('beforeunload', stopTcpdump);
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var callLuciProcessList = rpc.declare({
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object: 'luci',
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method: 'getProcessList',
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expect: { result: [] }
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});
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var callInitAction = rpc.declare({
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object: 'luci',
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method: 'setInitAction',
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params: [ 'name', 'action' ],
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expect: { result: false }
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});
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function addOutput() {
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var tcpdumpOut = document.querySelectorAll('[id$="tcpdump_out"]')[0];
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if (tcpdumpOut)
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return;
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var frameEl = E('div', {'class': 'cbi-value'});
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frameEl.appendChild(E('textarea', {
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'id': 'tcpdump_out',
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'class': 'cbi-input-textarea',
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'readonly': '',
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'style': 'width:100%',
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'rows': 30,
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}));
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frameEl.firstElementChild.style.fontFamily = 'monospace';
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var downloadBtn = document.querySelectorAll('[id$="download_file"]')[0];
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if (downloadBtn)
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downloadBtn.parentNode.insertBefore(frameEl, downloadBtn.nextSibling);
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}
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var downloadCaptureFile = function(ev) {
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var form = E('form', {
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method: 'post',
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action: '/cgi-bin/cgi-download',
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enctype: 'application/x-www-form-urlencoded'
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}, E('input', { type: 'hidden', name: 'sessionid', value: rpc.getSessionID()},
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E('input', { type: 'hidden', name: 'path', value: "/tmp/capture.pcap"},
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E('input', { type: 'hidden', name: 'filename', value: hostName + "-" + Date.now() + ".pcap"},
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E('input', { type: 'hidden', name: 'mimetype', value: 'application/vnd.tcpdump.pcap'}
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)))));
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ev.currentTarget.parentNode.appendChild(form);
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form.submit();
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form.parentNode.removeChild(form);
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}
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function subscribeTcpdump() {
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if (eventSource)
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eventSource.close();
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eventSource = new EventSource('/ubus/subscribe/tcpdump' + '?' + rpc.getSessionID());
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eventSource.onerror = function(event) {
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eventSource.close();
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console.log(event);
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};
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addOutput();
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var textOut = document.querySelectorAll('[id$="tcpdump_out"]')[0];
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textOut.value = "";
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eventSource.addEventListener("tcpdump.data", function(event) {
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textOut.value = textOut.value + "\n" + JSON.parse(event.data).data;
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});
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}
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function updateButtons() {
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var tasks = [];
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tasks.push(fs.stat("/var/run/packet_capture.pid").then(L.bind(function(res) {
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var downloadBtn = document.querySelectorAll('[id$="download_file"]')[0];
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if (!downloadBtn)
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return;
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if (!eventSource || eventSource.readyState == 2)
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subscribeTcpdump();
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var textOut = document.querySelectorAll('[id$="tcpdump_out"]')[0];
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if (textOut)
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textOut.style.borderColor = "green";
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var startBtn = document.querySelectorAll('[id$="start_tcpdump"]')[0];
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if (startBtn)
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startBtn.hidden = true;
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var stopBtn = document.querySelectorAll('[id$="stop_tcpdump"]')[0];
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if (stopBtn)
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stopBtn.hidden = false;
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return;
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})).catch(function(error) {
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var textOut = document.querySelectorAll('[id$="tcpdump_out"]')[0];
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if (textOut)
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textOut.style.borderColor = "red";
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var startBtn = document.querySelectorAll('[id$="start_tcpdump"]')[0];
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if (startBtn)
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startBtn.hidden = false;
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var stopBtn = document.querySelectorAll('[id$="stop_tcpdump"]')[0];
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if (stopBtn)
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stopBtn.hidden = true;
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if (eventSource)
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eventSource.close();
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}));
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return Promise.all(tasks);
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}
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function updatePollCheckCaptureFileExists() {
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checkCaptureFileExists();
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L.Poll.remove(captureFilePoll);
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L.Poll.add(L.bind(checkCaptureFileExists, m),5);
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}
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function checkCaptureFileExists() {
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var tasks = [];
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tasks.push(fs.stat("/tmp/capture.pcap").then(L.bind(function(res) {
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var downloadBtn = document.querySelector('[data-action="download"]');
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if (!downloadBtn)
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return;
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var downloadCheckBox = document.querySelectorAll('[data-widget-id$="file"]')[0].checked;
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if (!downloadCheckBox) {
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fs.remove("/tmp/capture.pcap").then(function(replay) {
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downloadBtn.disabled = true;;
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}.bind(this)).catch(function(error) {
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console.log(error);
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});
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} else {
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downloadBtn.disabled = false;
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}
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})).catch(function(error) {
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var downloadBtn = document.querySelector('[data-action="download"]');
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if (downloadBtn)
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downloadBtn.disabled = true;
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}));
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return Promise.all(tasks);
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}
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return L.view.extend({
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load: function() {
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return Promise.all([
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uci.load('system')
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]);
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},
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handleDownload: function(ev) {
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downloadCaptureFile(ev);
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},
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render: function(processes) {
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var m, s, o;
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hostName = uci.get('system', '@system[0]', 'hostname');
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m = new form.Map('packet_capture', _('Packet Capture - Tcpdump'), _('Capture packets with tcpdump.'));
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s = m.section(form.TypedSection, 'tcpdump');
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s.anonymous = 1;
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o = s.option(widgets.DeviceSelect, 'interface', _('Interface'), _(''));
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o.noaliases = true;
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o.modalonly = true;
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o.rmempty = false;
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o.filter = function(section_id, value) {
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return true;
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}
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o = s.option(form.Value, 'filter', _('Filter'), _('Tcpdump filter like protocol, port etc.'));
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o.modalonly = false;
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o.datatype = 'and(minlength(1),maxlength(1024))';
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o = s.option(form.Value, 'duration', _('Duration'), _('Duration of packet capturing in seconds.'));
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o.modalonly = false;
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o.datatype = 'range(1,4294967296)';
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o = s.option(form.Value, 'packets', _('Packets'), _('Number of packets to be captured.'));
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o.modalonly = false;
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o.datatype = 'range(1,4294967296)';
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o = s.option(form.Flag, 'domains', _('Resolve domains'), _("Convert host addresses to names."));
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o = s.option(form.Flag, 'verbose', _('Verbose output'), _("Print the link-level header on each dump line."));
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o = s.option(form.Flag, 'file', _('Save to file'), _("Save capture to pcap file."));
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o = s.option(form.Button, 'start_tcpdump', _('Start tcpdump'), _(''));
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o.inputstyle = 'apply';
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o.onclick = ui.createHandlerFn(this, function(section_id, ev) {
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var downloadBtn = document.querySelector('[data-action="download"]');
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if (!downloadBtn)
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return;
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fs.remove("/tmp/capture.pcap").then(function(replay) {
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downloadBtn.disabled = true;;
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}.bind(this)).catch(function(error) {
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console.log(error);
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});
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var iface = document.querySelectorAll('[id$="interface"]')[1].value,
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filter = document.querySelectorAll('[id$="filter"]')[2].value,
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packets = document.querySelectorAll('[id$="packets"]')[2].value,
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duration = document.querySelectorAll('[id$="duration"]')[2].value,
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verbose = document.querySelectorAll('[data-widget-id$="verbose"]')[0].checked,
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domains = document.querySelectorAll('[data-widget-id$="domains"]')[0].checked,
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file = document.querySelectorAll('[data-widget-id$="file"]')[0].checked
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var args = {
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"interface": iface,
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"filter": filter,
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"packets": packets,
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"duration": duration,
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"verbose": verbose,
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"domains": domains,
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"file": file
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}
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return fs.exec_direct('/usr/libexec/packet_capture_start', [JSON.stringify(args)]).then(function(replay) {
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var error_position = replay.search("error:");
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if (error_position != -1){
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ui.showModal(_(replay.substring(error_position + 6, replay.length)), [
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E('div', { 'class': 'right' }, [
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E('button', {
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'class': 'cbi-button cbi-button-negative important',
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'click': function(ev) {
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ui.hideModal();
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}
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}, _('Close')),
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])
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]);
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return;
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}
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rpc.list.apply(rpc).then(function(res) {
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for (var k in res) {
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if (res[k] == "tcpdump" )
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subscribeTcpdump()
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}
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}.bind(this));
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}.bind(this)).catch(function(error) {
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console.log(error);
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});
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});
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o = s.option(form.Button, 'stop_tcpdump', _('Stop tcpdump'), _(''));
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o.inputstyle = 'apply';
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o.onclick = ui.createHandlerFn(this, function(section_id, ev) {
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if (!eventSource)
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return;
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return fs.exec("/usr/libexec/packet_capture_stop").then(function(replay) {
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eventSource.close();
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}.bind(this)).catch(function(error) {
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console.log(error);
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});
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});
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o = s.option(form.Button, 'download_file', _('Download capture file'));
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o.inputstyle = 'action important';
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o.inputtitle = _('Download');
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o.data_action = 'download'
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o.onclick = this.handleDownload;
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L.Poll.add(L.bind(updateButtons, m),1);
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captureFilePoll = L.bind(updatePollCheckCaptureFileExists, m);
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L.Poll.add(captureFilePoll,1);
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return m.render();
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},
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});
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1
luci-app-packet-capture/root/etc/config/packet_capture
Normal file
1
luci-app-packet-capture/root/etc/config/packet_capture
Normal file
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config tcpdump
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64
luci-app-packet-capture/root/usr/libexec/packet_capture
Executable file
64
luci-app-packet-capture/root/usr/libexec/packet_capture
Executable file
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#!/usr/bin/env lua
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local ubus = require "ubus"
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local fs = require "nixio.fs"
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local conn = ubus.connect()
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if not conn then
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error("Failed to connect to ubus")
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return
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end
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local args = "-n"
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local duration = ""
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if arg[1] ~= nil then
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args = arg[1]
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if arg[2] ~= "" then
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duration = arg[2]
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end
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end
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local filter = fs.stat("/tmp/tcpdump_filter")
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if filter then
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args = args .. " -F /tmp/tcpdump_filter"
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end
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local ubus_objects = {
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tcpdump = {
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}
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}
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conn:add( ubus_objects )
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os.execute("sleep 1")
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local command = "tcpdump -l " .. args .. " 2>&1"
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if duration ~= "" then
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command = "timeout " .. duration .. " " .. command
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end
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local pipe = io.popen(command)
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for line in pipe:lines() do
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local params = {
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data = line
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}
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conn:notify(ubus_objects.tcpdump.__ubusobj, "tcpdump.data", params)
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end
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local pcap = fs.stat("/tmp/capture.pcap0")
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if pcap then
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fs.move("/tmp/capture.pcap0","/tmp/capture.pcap")
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fs.remove("/tmp/capture.pcap1")
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end
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if filter then
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fs.remove("/tmp/tcpdump_filter")
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end
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conn:close()
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pipe:close()
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fs.remove("/var/run/packet_capture.pid")
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69
luci-app-packet-capture/root/usr/libexec/packet_capture_start
Executable file
69
luci-app-packet-capture/root/usr/libexec/packet_capture_start
Executable file
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@ -0,0 +1,69 @@
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#!/bin/sh
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. /usr/share/libubox/jshn.sh
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PIDFILE="/var/run/packet_capture.pid"
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if [ -f "$PIDFILE"];then
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echo "error: Packet capture is running"
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exit 1
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fi
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json_load "$1"
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json_get_var interface interface
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json_get_var filter filter
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json_get_var duration duration
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json_get_var packets packets
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json_get_var verbose verbose
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json_get_var domains domains
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json_get_var file file
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args="-n"
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if [ "$domains" == "1" ];then
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args=""
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fi
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if [ -n "$interface" ];then
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ip a show "$interface" > /dev/null 2>&1
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if [ "$?" == "1" ]; then
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echo "error: Incorrect format of an interface"
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exit 1
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fi
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args="$args -i $interface"
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fi
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if [ -n "$packets" ];then
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echo "$packets" | egrep '^[0-9]*$'
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if [ "$?" -eq 0 ];then
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args="$args -c $packets"
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else
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echo "error: Incorrect packets argument"
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exit 1
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fi
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fi
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if [ "$verbose" == "1" ];then
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args="$args -e"
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fi
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if [ "$file" == "1" ];then
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mem=$(awk '/MemTotal/ {print $2}' /proc/meminfo)
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args="$args -W 2 -C $((mem/(1024 * 10))) -w /tmp/capture.pcap -z /usr/libexec/packet_capture_stop"
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fi
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if [ -n "$filter" ];then
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tcpdump -i lo -d "$filter" >/dev/null 2>/dev/null
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if [ $? -eq 1 ];then
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echo "error: Incorrect filter argument"
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exit 1
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fi
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echo "$filter" > /tmp/tcpdump_filter
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fi
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(/usr/libexec/packet_capture "$args" "$duration")&
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echo $! > /var/run/packet_capture.pid
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exit 0
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9
luci-app-packet-capture/root/usr/libexec/packet_capture_stop
Executable file
9
luci-app-packet-capture/root/usr/libexec/packet_capture_stop
Executable file
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@ -0,0 +1,9 @@
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#!/bin/sh
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pid=$(cat /var/run/packet_capture.pid)
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if [ -n "$pid" ] && grep -sq packet_capture "/proc/$pid/cmdline"; then
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ppid=$(pgrep -P $pid)
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kill -TERM $ppid
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fi
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exit 0
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@ -0,0 +1,18 @@
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{
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"admin/services/packet_capture": {
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"title": "Packet Capture",
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"order": 90,
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"action": {
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"type": "view",
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"path": "packet_capture/tcpdump"
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},
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"depends" : {
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"acl": [ "luci-app-packet-capture" ],
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"uci": { "packet_capture": true },
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"fs": { "/usr/libexec/packet_capture": "executable",
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"/usr/libexec/packet_capture_start": "executable",
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"/usr/libexec/packet_capture_stop": "executable"
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}
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}
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}
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}
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@ -0,0 +1,25 @@
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{
|
||||
"luci-app-packet-capture": {
|
||||
"description": "Grant access to tcpdump ubus object",
|
||||
"read": {
|
||||
"cgi-io": [ "download", "exec" ],
|
||||
"ubus": {
|
||||
"tcpdump": [ "*" ],
|
||||
"luci": [ "getProcessList" ]
|
||||
},
|
||||
"uci": [ "packet_capture", "system" ],
|
||||
"file": {
|
||||
"/tmp/capture.pcap": [ "read" ]
|
||||
}
|
||||
},
|
||||
"write": {
|
||||
"uci": [ "packet_capture" ],
|
||||
"file": {
|
||||
"/usr/libexec/packet_capture_start": [ "exec" ],
|
||||
"/usr/libexec/packet_capture_stop": [ "exec" ],
|
||||
"/usr/libexec/packet_capture": [ "exec" ],
|
||||
"/tmp/capture.pcap": [ "write" ]
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -78,9 +78,9 @@ MY_DEPENDS := \
|
|||
!TARGET_mvebu:kmod-usb-net-huawei-cdc-ncm !TARGET_mvebu:kmod-usb-net-rndis !TARGET_mvebu:kmod-usb-net-cdc-ether !TARGET_mvebu:kmod-usb-net-ipheth !TARGET_mvebu:usbmuxd \
|
||||
kmod-rt2800-usb kmod-rtl8xxxu kmod-rtl8192cu kmod-net-rtl8192su \
|
||||
!TARGET_mvebu:luci-proto-qmi wpad-basic kmod-mt7601u kmod-rtl8187 \
|
||||
luci-app-mlvpn mlvpn 464xlat !TARGET_mvebu:kmod-usb-net-smsc75xx kmod-zram kmod-swconfig swconfig kmod-ipt-nat kmod-ipt-nat6 luci-app-https-dns-proxy kmod-tcp-nanqinlang kmod-tcp-bbr2 iptables-mod-ipopt igmpproxy ss iptraf-ng \
|
||||
luci-app-mlvpn mlvpn 464xlat !TARGET_mvebu:kmod-usb-net-smsc75xx kmod-zram kmod-swconfig swconfig kmod-ipt-nat kmod-ipt-nat6 luci-app-https-dns-proxy kmod-tcp-nanqinlang (TARGET_x86_64||TARGET_arm64):kmod-tcp-bbr2 iptables-mod-ipopt igmpproxy ss iptraf-ng \
|
||||
luci-app-acl block-mount blockd fstools luci-app-shutdown libwebp luci-proto-gre tcptraceroute luci-proto-mbim kmod-rtl8xxxu kmod-ath9k-htc luci-app-ttyd luci-mod-dashboard (TARGET_x86||TARGET_x86_64):rtl8192eu-firmware kmod-usb2 libustream-wolfssl (TARGET_x86||TARGET_x86_64):kmod-ixgbevf \
|
||||
hwinfo (TARGET_x86||TARGET_x86_64):dmidecode
|
||||
hwinfo (TARGET_x86||TARGET_x86_64):dmidecode luci-app-packet-capture
|
||||
# luci-theme-bootstrap luci-theme-openwrt-2020 luci-theme-openwrt luci-app-status
|
||||
# luci-proto-bonding luci-app-statistics luci-proto-gre
|
||||
# softethervpn5-client softethervpn5-server luci-app-nginx-ha
|
||||
|
|
|
|||
Loading…
Reference in a new issue