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debugfs-webgui
Commit 0170f730 authored by Oleg Dzhimiev's avatar Oleg Dzhimiev
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LICENSE 0 → 100644
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README.md
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......@@ -9,4 +9,4 @@ Speed up the Linux kernel dynamic debug
* make them accessible to the webserver
## user manual
* http://\<target-ip\>/\<webserver-path-to-degufs.html\>/debugfs.html
* http://\<target-ip\>/\<webserver-path-to-degufs.html\>/debugfs.html
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html{
font-family: Arial;
font-size: 0.8em;
}
body{
padding: 10px;
}
table{
border-collapse:collapse;
border-radius: 3px;
}
th, td{
text-align: left;
padding: 3px 10px 3px 10px;
border-radius: 0px;
border: 1px solid rgba(180,180,180,0.5)
}
th {
background-color: rgba(200,200,200,0.5);
}
.even {
background-color: rgba(235,235,235,0.5);
}
.odd {
background-color: rgba(255,255,255,0.5);
}
.special {
background-color: rgba(100,200,100,0.5);
}
select {
border: 1px solid rgba(200,200,200,1);
border-radius: 2px;
font-family: Arial;
font-size: 1em;
background-color: rgba(200,200,200,0.5);
margin: 0px;
padding: 1px;
}
input {
-moz-appearance: none;
border: 1px solid rgba(200,200,200,1);
}
.tp{
width:20px;
height:20px;
}
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<html>
<head>
<script src="js/jquery-2.2.3.min.js"></script>
<script src="js/jquery.ajax.queue.js"></script>
<script src="debugfs.js"></script>
<script src="js/bootstrap/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="js/bootstrap/css/bootstrap.min.css"/>
<link rel="stylesheet" href="debugfs.css"/>
</head>
<body onload='init()'>
</body>
</html>
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debugfs.php 0 → 100644
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<?php
//globals
$config = "debugfs.json";
$tmp_config = "/tmp/$config";
$DEBUGFSFILE = "/sys/kernel/debug/dynamic_debug/control";
if (isset($_GET['cmd']))
$cmd = $_GET['cmd'];
else
$cmd = "do_nothing";
function control_records_sort($a,$b){
$ad1 = strpos($a,":");
$ad2 = strpos($a,"[");
$afile = substr($a,0,$ad1);
$aline = (int)substr($a,$ad1+1,($ad2-1)-$ad1-1);
$bd1 = strpos($b,":");
$bd2 = strpos($b,"[");
$bfile = substr($b,0,$bd1);
$bline = (int)substr($b,$bd1+1,($bd2-1)-$bd1-1);
if ($afile==$bfile){
if ($aline==$bline){
return 0;
}
return($aline<$bline)?-1:1;
}
return ($afile<$bfile)?-1:1;
}
function get_control($f){
$res = Array();
$results = trim(file_get_contents($f));
//print("<pre>");
$ress = explode("\n",$results);
//filename - find first ":"
//lineno - between ":" and " "
//then [module] inside brackets
//function from "]" to " "
usort($ress,"control_records_sort");
$oldfile = "";
foreach($ress as $line){
if ($line[0]=="#") continue;
$d0 = 0;
$d1 = strpos($line,":");
$d2 = strpos($line,"[");
$d3 = strpos($line,"]");
preg_match("/=[flmpt_]+/",$line,$matches,PREG_OFFSET_CAPTURE);
$d4 = $matches[0][1];
$d5 = strpos($line,"\"");
$subarr = Array();
$subarr['file'] = substr($line,0,$d1);
$subarr['lineno'] = substr($line,$d1+1,($d2-1)-$d1-1);
$subarr['module'] = substr($line,$d2+1,($d3-1)-$d2);
$subarr['function'] = substr($line,$d3+1,($d4-1)-$d3-1);
$subarr['flags'] = substr($line,$d4+1,1);
$subarr['format'] = substr($line,$d5+1,-1);
if ($subarr['file']!=$oldfile){
//echo "processing ".$subarr['file']."\n";
if ($oldfile!="") array_push($res,$sub);
$oldfile = $subarr['file'];
$sub = Array(
"file" => $subarr['file'],
"state" => 0,
"configs" => Array(
Array(
"name" => "default",
"state" => 1,
"lines" => Array()
)
)
);
}
array_push($sub['configs'][0]['lines'],$subarr);
}
//last
array_push($res,$sub);
return $res;
}
function update_config($data){
global $tmp_config;
// debugfs.json
file_put_contents($tmp_config,$data);
}
function apply_config_to_control(){
global $tmp_config, $DEBUGFSFILE;
$longstring = "";
$arr_config = json_decode(file_get_contents($tmp_config),true);
foreach($arr_config as $v0){
if ($v0['state']==1){
foreach($v0['configs'] as $v1){
if ($v1['state']==1){
foreach($v1['lines'] as $v2){
$file = $v2['file'];
$lineno = $v2['lineno'];
$flag = $v2['flags'];
if ($flag=="p") $sign = "+";
else $sign = "-";
$newstring = "file $file line $lineno ${sign}p;";
//there's a limit
if (strlen($longstring.$newstring)>4095){
exec("echo -n '$longstring' > $DEBUGFSFILE");
$longstring = $newstring;
}else{
$longstring .= $newstring;
}
//echo "echo -n 'file $file line $lineno ${sign}p'\n";
}
}
}
}
}
exec("echo -n '$longstring' > $DEBUGFSFILE");
echo "Done";
}
function apply_flag($flag){
global $tmp_config, $DEBUGFSFILE;
$longstring = "";
$arr_config = json_decode(file_get_contents($tmp_config),true);
foreach($arr_config as $v0){
if ($v0['state']==1){
foreach($v0['configs'] as $v1){
if ($v1['state']==1){
$newstring = "file ".$v0['file']." $flag;";
if (strlen($longstring.$newstring)>4095){
exec("echo -n '$longstring' > $DEBUGFSFILE");
$longstring = $newstring;
}else{
$longstring .= $newstring;
}
}
}
}
}
exec("echo -n '$longstring' > $DEBUGFSFILE");
echo "Done";
}
function sync_from_debugfs_to_config($config_index,$file,$line,$flags,$sign){
global $tmp_config;
//$arr_debugfs = get_control("/sys/kernel/debug/dynamic_debug/control");
$arr_config = json_decode(file_get_contents($tmp_config),true);
$err = 0;
$dc = 0; $dcc = 0; $dccc = 0;
foreach($arr_config as $k => $v){
if ($v['file']==$file) {
$dc = $k;
$err = $err + 1;
break;
}
}
$tmp_arr1 = $arr_config[$dc]['configs'];
foreach($tmp_arr1 as $k => $v){
if ($v['state']==1) {
$dcc = $k;
$err = $err + 2;
break;
}
}
$tmp_arr2 = $arr_config[$dc]['configs'][$dcc]['lines'];
foreach($tmp_arr2 as $k => $v){
if ($v['lineno']==$line) {
$dccc = $k;
$err = $err + 4;
break;
}
}
if ($sign=="+") $flag = "p";
else $flag = "_";
echo "file index: $dc, config index: $dcc, line index: $dccc \n";
if ($err==7){
$arr_config[$dc]['configs'][$dcc]['lines'][$dccc]['flags'] = $flag;
update_config(json_encode($arr_config));
}else{
echo "error code: $err";
}
}
function filter_record_by_file($a,$f){
$res = Array();
foreach($a as $k=>$v){
if ($v['file']==$f){
$res = $v;
break;
}
}
return $res;
}
if ($cmd=="do_nothing"){
if (isset($_GET['file'])) $file = $_GET['file'];
else $file = $DEBUGFSFILE;
//echo json_encode(get_control($file));
//echo "<pre>";
if (!is_file($tmp_config)) {
if (is_file($config)) {
copy($config,$tmp_config);
$json_data = file_get_contents($tmp_config);
echo $json_data;
}else{
$arr = get_control($file);
//print_r($arr);
update_config(json_encode($arr));
echo json_encode($arr);
}
//echo "debugfs.json was missing, refresh page\n";
}else{
$json_data = file_get_contents($tmp_config);
echo $json_data;
//print_r(json_decode($json_data));
}
}
if ($cmd=="echo") {
$file = $_GET['file'];
$line = $_GET['line'];
$flags = $_GET['flags'];
$config_index = intval($_GET['conf']);
//$config name
if (strpos($flags,"p")===FALSE){
$sign = "-p";
}else{
$sign = "+";
}
exec("echo -n 'file $file line $line ${sign}${flags}' > $DEBUGFSFILE");
sync_from_debugfs_to_config($config_index,$file,$line,$flags,$sign);
}
$debugfs_configs = "debugfs_configs";
if ($cmd=="save"){
$file = $_GET['file'];
if (!is_dir($debugfs_configs)) mkdir($debugfs_configs);
file_put_contents("$debugfs_configs/$file", file_get_contents($DEBUGFSFILE));
}
if ($cmd=="sync"){
//list saved configs here
$file = $_GET['file'];
$data = file_get_contents("php://input");
update_config($data);
apply_config_to_control();
}
if ($cmd=="savetofs"){
copy($tmp_config,$config);
}
if ($cmd=="restore"){
apply_config_to_control();
}
if ($cmd=="reread"){
$file = $_GET['file'];
$arr = get_control($DEBUGFSFILE);
$filtered = filter_record_by_file($arr,$file);
echo json_encode($filtered);
//echo "<pre>";print_r($filtered);
}
if ($cmd=="setflag"){
$flag = $_GET['flag'];
apply_flag($flag);
}
//single line: echo -n 'file gamma_tables.c +p' > /sys/kernel/debug/dynamic_debug/control
?>
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// This file is autogenerated via the `commonjs` Grunt task. You can require() this file in a CommonJS environment.
require('../../js/transition.js')
require('../../js/alert.js')
require('../../js/button.js')
require('../../js/carousel.js')
require('../../js/collapse.js')
require('../../js/dropdown.js')
require('../../js/modal.js')
require('../../js/tooltip.js')
require('../../js/popover.js')
require('../../js/scrollspy.js')
require('../../js/tab.js')
require('../../js/affix.js')
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// credits: https://blog.alexmaccaw.com/queuing-ajax-requests
// Generated by CoffeeScript 1.6.2
(function() {
var $, next, push, queue, queues, remove, running;
$ = jQuery;
queues = {};
running = false;
queue = function(name) {
if (name === true) {
name = 'default';
}
return queues[name] || (queues[name] = []);
};
next = function(name) {
var deferred, list, options, _ref;
list = queue(name);
if (!list.length) {
running = false;
return;
}
_ref = list.shift(), options = _ref[0], deferred = _ref[1];
return $.ajax(options).always(function() {
return next(name);
}).done(function() {
return deferred.resolve.apply(deferred, arguments);
}).fail(function() {
return deferred.reject.apply(deferred, arguments);
});
};
push = function(name, options) {
var deferred, list;
list = queue(name);
deferred = $.Deferred();
list.push([options, deferred]);
if (!running) {
next(name);
}
running = true;
return deferred.promise();
};
remove = function(name, options) {
var i, list, value, _, _i, _len, _ref, _results;
list = queue(name);
_results = [];
for (i = _i = 0, _len = list.length; _i < _len; i = ++_i) {
_ref = list[i], value = _ref[0], _ = _ref[1];
if (!(value === options)) {
continue;
}
list.splice(i, 1);
break;
}
return _results;
};
$.ajaxTransport('+*', function(options) {
var queuedOptions;
if (options.queue) {
queuedOptions = $.extend({}, options);
queuedOptions.queue = false;
queuedOptions.processData = false;
return {
send: function(headers, complete) {
return push(options.queue, queuedOptions).done(function(data, textStatus, jqXHR) {
return complete(jqXHR.status, jqXHR.statusText, {
text: jqXHR.responseText
}, jqXHR.getAllResponseHeaders());
}).fail(function(jqXHR, textStatus, errorThrown) {
return complete(jqXHR.status, jqXHR.statusText, {
text: jqXHR.responseText
}, jqXHR.getAllResponseHeaders());
});
},
abort: function() {
return remove(options.queue, queuedOptions);
}
};
}
});
}).call(this);
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