Tag Archives: android

Override DNS v5.4.1 released

Android, Override DNS, ,

  • User facing improvements:

    • Adaptive icon
    • Added test button when possible
    • Added a dedicated service for Oreo+ versions and a persistent notification (can be switched off)
    • Added “always use iptables” option for N+ Android versions
    • Improved logging: added autoscroll, timestamp, failure reasons, live messages, persistance
    • Fixed rotation problems, ProgressBar, layout for small screens, buttons layout
    • Improved: notifications, app load time, root detection
    • removed Showcaseview library

  • Internal improvements:

    • Fixed: SELinux detection, Magisk detection, restore button, network disconnections detection
    • Improved: Wi-Fi SSID detection, code style
    • Reduced preferences size, source code, compilation time
    • Simplified mantainability with command templates
    • Disabled StrictMode in release versions
    • Introduced: Gson, ButterKnife

Cross compile fstrim for Android on Ubuntu 18.10

Android, How to, ,

Install compiler

$ sudo apt install gcc-arm-linux-gnueabi

Get sources and compile

$ apt source util-linux
$ cd util-linux-*
$ ./autogen.sh
$ ./configure --host=arm-linux-gnueabi CFLAGS="-static"
$ make LDFLAGS="--static" fstrim
# OK with warnings

Check

$ file fstrim
fstrim: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), statically linked, for GNU/Linux 3.2.0, BuildID[sha1]=5f6d5789d8c27197fb5fadbc18f5cd506b330dc4, with debug_info, not stripped

Override DNS is #malicious-harmful!?

Android, Override DNS, Programming, , , , , ,

Hi guys,
my app is temporarily out of the Play Store. I hope it’s really a temporary thing.

It seems that my last beta (beta78), the one available only to the beta testers, was not compliant to the 4.4 section of the Developer Distribution Agreement. But let me explain in the right order.

50 minutes ago I received an e-mail from the Google Play Support. It was notifying me of some kind of violation. The e-mail was referring to the app: “Virtual Button ROOT MENU” (package ID jp.ne.neko.freewing.VirtualButtonRootMenu).
It seems that that app, which disables SELinux, violates the Developer Distribution Agreement

Don’t transmit or link to… items that may introduce security vulnerabilities to or harm user devices, apps, or personal data.

OK.

I’m serious it wasn’t some kind of phishing, they simply sent me the right notice but referring to someone else.

My latest beta has an advanced option which, if chosen, temporary lowers the device security by disabling SELinux on the device. It applies the DNS and brings SELinux back again. So it seems I’m guilty.

And now

Disabling SELinux is not approved by the Play Store.

In my humble opinion it was not so obvious, but anyway, I repackaged a stable release and a beta without the SELinux thing. I’m waiting to see my app online again.

How to enable/disable Android logcat when using a custom kernel

Android, How to, , , , ,
A good source of information could be found in this page, but none of them worked for me.

The most useful article I found was on xda and here’s the solution:

  • enable 
    echo 0 > /sys/module/logger/parameters/log_mode
  • enable at boot, but not when suspended 
    echo 1 > /sys/module/logger/parameters/log_mode
  • completely disabled: 
    echo 2 > /sys/module/logger/parameters/log_mode

(you need a rooted device)