I have a Lenovo Thinkpad that only allows certain hardware to be installed. If there is a piece of hardware connected that is not on the whitelist, BIOS will tell you to remove it and restart. Otherwise the machine will not boot. Now I want to install an unauthorized wifi+bluetooth module, so I need to get rid of that whitelist.
I've been following this guide up to the point where the author suggests the use of the IDA pro software, which I don't want to buy just for this one hack.
Instead, I have dabbled around a bit with the extracted body in Ghidra, and managed to get to locate the hex code for the "Unauthorized network card detected ..." string and to find out that the string is part of some entity called "DAT_000104d0", and the only place that entity is referenced is the following function:
void FUN_00010ec4(undefined8 param_1,undefined *param_2,undefined8 param_3,undefined8 param_4)
{
if (param_2 == (undefined *)0x0) {
param_2 = &DAT_00010ec0;
}
(**(code **)(DAT_00011040 + 0x170))(0x200,param_1,param_2,param_3,&DAT_000104d0,param_4);
return;
}
That function in turn gets called from here:
longlong entry(undefined8 param_1,longlong param_2)
{
longlong lVar1;
undefined8 local_res18;
undefined8 *local_res20;
undefined local_18 [24];
FUN_00010f08(param_1,param_2);
lVar1 = (**(code **)(DAT_00011040 + 0x140))(&LAB_00010480,0,&DAT_00011058);
if (-1 < lVar1) {
lVar1 = (**(code **)(DAT_00011040 + 0x140))(&LAB_00010410,0,&DAT_00011070);
if (-1 < lVar1) {
lVar1 = (**(code **)(DAT_00011040 + 0x140))(&DAT_000103f0,0,&DAT_00011078);
if (-1 < lVar1) {
lVar1 = (**(code **)(DAT_00011040 + 0x140))(&LAB_00010460,0);
if (-1 < lVar1) {
DAT_00011060 = *local_res20;
local_res18 = 0;
_DAT_00011068 = &LAB_00010b54;
(**(code **)(DAT_00011040 + 0x80))(&local_res18,&DAT_000103d0,0,&DAT_00011068);
DAT_00011028 = local_res18;
FUN_00010ec4(0x10,FUN_00010cf8,0,local_18);
lVar1 = 0;
}
}
}
}
return lVar1;
}
Any idea on how I should proceed, hopefully without messing up the whole thing?
I've uploaded the complete bios img and the extracted body here, if anyone wants to have a look at those.
Edit: I used a workaround by googling a lot and eventually finding a modified version of the extracted body that I used experimentally, and it worked. What I googled for was (I think) the name of that section of the BIOS. In the example from the medium guide that would be 11D37... That number will be different for your device though, and I can´t guarantee that there will be such a file for your device at all, or that it will work. Just make sure you backup your original bios multiple times and in multiple places, so you can flash it again.
Related
I am using stm32H753xx and Cube FatFs library.
After our e-MMC has been soldered to our board, I want to bring-up.
My startup codes is here:
res = f_mount(&fat_fs, "0:", 0);
if (res != FR_OK) {
res = f_mkfs("", FM_ANY, 0, work, sizeof(work));
if (res != FR_OK) {
while(1) {
LOGGER_REPORT(FORMAT_REQUEST_FAILED);
vTaskDelay(pdMS_TO_TICKS(1000));
}
}
res = f_mount(&fat_fs, "0:", 0);
if (res != FR_OK) {
while(1) {
LOGGER_REPORT(FORMATTED_BUT_NOT_MOUNTED);
vTaskDelay(pdMS_TO_TICKS(1000));
}
}
}
I generally expect an error at mounting phase if bringing-up of a memory device is very first time and this implies why I made my software branch to f_mkfs functions if f_mount fails. But f_mount is returning FR_OK and software is skipping here.
Afterwards, I am doing some api calls to detect latest directory in the root and to create new one by giving a name in way that would be latest+1. ( latest is like ./70/ new one ./71/ anyway)
There are some api calls here f_opendir, f_readdir, f_closedir respectively and all of them returns succesfully but,
whenever I want to create new dir by calling fs_mkdir, it returns FR_NO_FILESYTEM.
If I call f_mkfs after f_mount above, a FAT is creating and software works but I can not call f_mkfs ile that and could not figure it out where I have to put this code to make it run only once at very initial bring-up of e-MMC.
How can I make possible that the app will load all of the images from the specific folder and then put in array and choose one image randomly? When chose one then pass to the fronted to show the image. How to do that too?
I am C# developer but not long time ago I found ElectronJS and this framework does everything easier so therefore I am moving to this framework.
I did in C# programming this way:
// basic settings.
var ext = new List<string> { ".jpg", ".gif", ".png" };
// we use same directory where program is.
string targetDirectory = Directory.GetCurrentDirectory() + "\\assets\\" + "images\\" + "animals\\";
// Here we create our list of files
// New list
// Use GetFiles to getfilenames
// Filter unwanted stuff away (like our program)
if (Directory.Exists(targetDirectory))
{
Files = new List<string>
(Directory.GetFiles(targetDirectory, "*.*", SearchOption.TopDirectoryOnly)
.Where(s => ext.Any(es => s.EndsWith(es))));
// Show first picture so we dont need wait 3 secs.
ChangePicture();
}
else
{
panel5.BackgroundImage = new Bitmap(Resources.doggy);
}
I don't know how to do in ElectronJS.
Thank you in advance the answers.
Alright. I found the solution.
However I don't understand the people who are giving negative reputation for the opened question. If they are giving negative reputation then they could explain why.
Well anyway, I did fix this issue with this way:
I created images.js file and added this:
var fs = require('fs');
function getRandImage() {
var files = fs.readdirSync('./assets/images/animals/')
/* now files is an Array of the name of the files in the folder and you can pick a random name inside of that array */
let chosenFile = files[Math.floor(Math.random() * files.length)]
console.log('../assets/images/animals/' + chosenFile);
return '../assets/images/animals/' + chosenFile;
}
module.exports = { getRandImage }
I used console to see if the value is correct, otherwise others can delete that part.
Sending the data to the renderer process:
const { getRandImage } = require('./images');
child.webContents.send('random-image', getRandImage());
I did put in the preload.js file the following (I used the starter pack electronjs github to start with something):
var { ipcRenderer } = require('electron');
ipcRenderer.on('random-image', function (event, store) {
document.getElementById("randompic").src = store;
console.log(store);
});
Same here, I did use console.log just for test the value is correct and I used to change the randompic ID related image src html to the randomly chosen image.
Hopefully I did helping those people who are newbie as me.
Is there is a way to change the language of input fields in unity to Arabic?. I tried ArabicSupport and it displayed Arabic correctly but using it with input fields didn't work because
GameObject.Find("input_field")
.GetComponent<InputField>().text = Fix3dTextCS.fix(
GameObject.Find("input_field").GetComponent<InputField>().text
);
caused an error so, if I printed the input text elsewhere, it will appear correctly but how can I do it with the same input field?
input field is a little bit tricky to let it work with Arabic Support
please try this opensource asset it has an prefab for Arabic Input Field and some other UIs.
OpenSource for ArabicSupport Solution Link
OpenSource for unity asset UI Arabic Support: Link
Have you tried adding arabic font in that input.
If so, post the error message it may help to find the bug
Using Font won't help because it will only change the theme of your current Input usage but not how you use to input in the Device.
You will need to use Input.Location <- Input is static so you can access it anywhere. The only problem is, I am not sure what is the exact variable for arabic is. My best guess is Input.Location = "Arabic" or "arabic".
If you want to automatically detect their location, the GPS which will unity3d turn on by calling Input.Location.Start, and turn off by Input.Location.Stop()
Here is a sample code for you.
using UnityEngine;
using System.Collections;
public class TestLocationService : MonoBehaviour
{
IEnumerator Start()
{
// First, check if user has location service enabled
if (!Input.location.isEnabledByUser) yield break;
// Start service before querying location
Input.location.Start();
// Wait until service initializes
int maxWait = 20;
while (Input.location.status == LocationServiceStatus.Initializing && maxWait > 0)
{
yield return new WaitForSeconds(1);
maxWait--;
}
// Service didn't initialize in 20 seconds
if (maxWait < 1)
{
print("Timed out");
yield break;
}
// Connection has failed
if (Input.location.status == LocationServiceStatus.Failed)
{
print("Unable to determine device location");
yield break;
}
else
{
// Access granted and location value could be retrieved
print("Location: " + Input.location.lastData.latitude + " " + Input.location.lastData.longitude + " " + Input.location.lastData.altitude + " " + Input.location.lastData.horizontalAccuracy + " " + Input.location.lastData.timestamp);
}
// Stop service if there is no need to query location updates continuously
Input.location.Stop();
}
}
I have a web app that have a Timer that fires a poll to get data every 3 seconds. It works fine for about 2.5 minutes then Chromium crashes.
My request Dart looks like this
HttpRequest.getString('data/get_load_history_recent.json')
.then((e) => _recentHistoryResponse(e))
.catchError((e) => _recentHistoryError(e));
Can you think of any reasons why this would happen? I assume it's a memory leak...
Edit:
Here is my _recentHistoryResponse()
void _recentHistoryResponse(String data)
{
Map obj = JSON.decode(data);
if(obj['status'] == 'success')
{
List processes = obj['data']['processes'];
List newItems = new List();
List oldIdsArray = new List();
int length = appDataDic.load_history_list.length;
for(HistoryDataVO oldVO in appDataDic.load_history_list)
{
oldIdsArray.add(oldVO.loadID);
}
for(Map process in processes)
{
HistoryDataVO dataVO = new HistoryDataVO();
dataVO.loadID = process['loadID'];
dataVO.time = process['time'];
dataVO.loadType = process['loadType'];
dataVO.fileName = process['fileName'];
dataVO.label = process['label'];
dataVO.description = process['description'];
dataVO.count = process['count'];
dataVO.progress = process['progress'];
dataVO.loadTask = process['loadTask'];
// Check if the item is currently in the list
if(length >= 1)
{
if(!LoadHistoryHelper.exists(oldIdsArray, dataVO.loadID))
{
dataVO.isNew = true;
}
}
newItems.add(dataVO);
}
appDataDic.load_history_list.clear();
appDataDic.load_history_list.addAll(newItems);
}
}
I have commented out the exists check !LoadHistoryHelper.exists(oldIdsArray, dataVO.loadID)) (because this seemed like the obvious place) but it the VM still crashes.
Also, I have taken this same code and put it into an isolated app with the only real difference in the poll check is appDataDic.load_history_list is just an #observable List, not an ObservableList.
Edit 2 :
Ok, so I have discovered that Map obj = JSON.decode(data); causes the crash. I was reading in a Javascript forum that timeouts cause the memory to not be released (I had never thought of this but it makes sense), is this true? Can any one think of a better way to do this? Can I directly call the garbage collection? I'm running out of ideas.
There's another question here, suggesting a memory leak in HttpRequest; however I'm not able to find anything in the Dart issue tracker. If you think this might be a real memory leak, it might be worth raising a bug.
I have a service in my application which return a list of tracks, here is the code for that
List<Track> getTrackListTracks(String listName, int max) {
def tracks = getTrackListTracks(listName)
if(tracks?.size() > max) {
tracks = tracks[0 ..< max]
}
return tracks
}
List<Track> getTrackListTracks(String listName) {
def tl = TrackList.findByName(listName)
if(tl?.tracks) {
return tl?.tracks?.collect { Track.read(it.trackId) }
}
}
i have to write the unit test for this but I am not able to write. Can anyone help me in this.
Thanks Already
Hopefully you've progressed beyond this, but for those coming after, the grails-spock-examples project # google code (https://github.com/pschneider-manzell/grails-spock-examples) has a wide range of examples.
More specifically, for a service (as you've asked), check out Testing Services.
Caution, though - there are a few differences between that and what is required for Grails 2. For example, if testing controllers, 'redirectArgs' is no longer valid. Make sure to also consult the Grails Documentation for differences.