danpawlik

#!/bin/sh

# based on https://www.procustodibus.com/blog/2022/12/limit-wireguard-bandwidth/
# wireguard setup and peers setup done by script: https://openwrt.org/docs/guide-user/services/vpn/wireguard/automated


# Show traffic control classes for the device wg_lan - should be empty
tc class show dev wg_lan

# Add HFSC qdisc to wg_lan (root queueing, handle 1, default class 1)

danpawlik

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x411fd090]
[    0.000000] Linux version 6.6.22 (user@b23256e80eba) (aarch64-openwrt-linux-musl-gcc (OpenWrt GCC 12.3.0 r25530+1-51752fa14b) 12.3.0, GNU ld (GNU Binutils) 2.40.0) #0 SMP Sat Mar 16 19:37:37 2024
[    0.000000] Machine model: Bananapi BPI-R4
[    0.000000] OF: reserved mem: 0x0000000042ff0000..0x0000000042ffffff (64 KiB) map non-reusable ramoops@42ff0000
[    0.000000] OF: reserved mem: 0x0000000043000000..0x000000004304ffff (320 KiB) nomap non-reusable secmon@43000000
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000040000000-0x00000000ffffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   [mem 0x0000000100000000-0x000000013fffffff]
[    0.000000] Movable zone start for each node

danpawlik

How to restore back Huawei P20 Pro after downgrade and "Your device has failed verification and may not work property."

This manual was created using my own example how to resurrect Huawei P20 Pro. I am not responsible for your device. The following description was made for scientific and passion purposes.

NOTE: This guide require to unlock the phone via testpoint. NOTE: Some part of that guide require to do steps on Windows, some other on Linux (I did not test script on Windows)

Preparation

1. Download the unlock tool https://github.com/werasik2aa/Huawei-Unlock-Tool/releases and unpack
2. Download the testpoint driver https://github.com/mashed-potatoes/PotatoNV?tab=readme-ov-file#unlocking-the-bootloader

danpawlik

#cloud-config

# user: test password: test
users:
  - default
  - name: test
    sudo: ALL=(ALL) NOPASSWD:ALL
    groups: users, admin
    ssh_authorized_keys:
      - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOKLl0NYKwoZ/JY5KeZU8VwRAggeOxqQJeoqp3dsAaY9 dpawlik@x1

danpawlik

Network:

root@BPI-R4:~# uci export network
package network

config interface 'loopback'
        option device 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

danpawlik

Debricking Xiaomi 4c / Xiaomi AX3200 router on MacOs / Linux

Moved to https://reeywhaar.github.io/posts/debricking-xiaomi_4c/

A short preamble. If you don't want to read how i've bricked my router go to the next chapter "Debricking".

I've bought a Xiaomi 4c router on my trip so I can make it work in hotspot mode. Router connects to hotel wifi and then I connect to its private network, so all my devices are not reachable from the hotel network. Even though I saw that the router supports such mode in reality there was none. So I decided to install OpenWrt. Long story short I've installed it and made it work. My verdict is that though theoretically OpenWrt works practically, it works unstable. After some time the router just stops to respond, either via ssh, web front, wifi connection, etc... When my hotel days were over I decided to restore the original MiWifi firmware. I downloaded one on official website: https://miuirom.org/miwifi/mi-router-

danpawlik

collectd collectd-mod-sensors collectd-mod-dns collectd-mod-wireless luci-app-statistics luci luci-i18n-base-pl vim htop curl iperf3 luci-app-attendedsysupgrade auc bmon irqbalance rsync dawn luci-app-dawn https-dns-proxy luci-app-https-dns-proxy luci-i18n-https-dns-proxy-pl libcurl4 libnghttp3 libngtcp2 luci-app-sqm

danpawlik

#!/bin/bash

sudo adb shell pm list packages -u | cut -f2 -d: | sort > ~/huawei-dump-packages


for app in $(grep -E 'com.amazon.mShop.android.shopping|com.amazon.appmanager|com.booking|com.facebook.appmanager|com.facebook.katana|com.facebook.services|com.facebook.system|com.huawei.browser|com.huawei.browserhomepage|com.huawei.hwread.dz|com.huawei.ohos.inputmethod|com.google.android.apps.docs|com.google.android.apps.docs.editors.docs|com.google.android.apps.docs.editors.sheets|com.google.android.apps.docs.editors.slides|com.huawei.gamebox|com.google.android.videos|com.google.android.music|com.huawei.health|com.huawei.meetime|com.example.android.notepad|com.huawei.maps.app|com.huawei.hwsearch|com.huawei.mycenter|com.huawei.tips$|com.google.android.apps.tachyon|com.huawei.videoeditor|com.huawei.himovie.overseas|com.huawei.phoneservice' ~/huawei-dump-packages); do sudo adb shell pm uninstall --user 0 "${app}"; sudo adb shell pm disable-user --user 0 "${app}"; done

# to install
# Google dialer
# Google keep

danpawlik

#!/bin/bash

DOCKER_USER=${DOCKER_USER:-$1}
DOCKER_PASSWORD=${DOCKER_PASSWORD:-$2}

export DOCKER_USER=dpawlik;
export DOCKER_PASSWORD=''


if [ -z "$DOCKER_USER" ] || [ -z "$DOCKER_PASSWORD" ]; then

danpawlik

#!/bin/bash

MINIKUBE_VERSION=${MINIKUBE_VERSION:-'latest'}

echo "$USER    ALL=(ALL)    ALL" | sudo tee -a /etc/sudoers
echo "%$USER    ALL=(ALL)   NOPASSWD: ALL" | sudo tee -a /etc/sudoers

# install crio
CRIO_VERSION=1.24
OS="xUbuntu_$(lsb_release -r -s)"