This is Part 3 of the continuing blog series on ADB keyvalue backups. Today we focus on Wifi settings and other system configuration available from-
<Backup.adb>/apps/com.android.providers.settings/k/com.android.providers.settings.data
They are backed up only if you specified the -keyvalue option and are available on non-rooted devices too.
This file follows the Key-Value Data format as outlined earlier in part 1. There are 8 different types of data seen here. The Key name represents the type of data and Value represents either a single structure or a set of name-value pairs (both name and value are strings). The table below shows the data seen here.
Key Name
|
Description
|
system
|
settings about font sizes, screen brightness, hearing aids, haptic
feedback among others
|
secure
|
more system settings on gestures, button behaviors, spell checker,
screensaver, accessibility, etc..
|
global
|
Boolean settings that enable/disable options like wifi wakeup, auto_time, sounds enabled, call
auto-retry, etc..
|
locale
|
a locale string like ‘en-US’
|
lock_settings
|
owner info for display on screen if enabled
|
softap_config
|
Access point settings for Mobile hotspot
|
network_policies
|
unknown
|
wifi_new_config
|
xml data having wifi settings for connected access points
|
Perhaps the most interesting aspect here is the presence of wifi passwords (WPA pre-shared keys) in the wifi_new_config data as see in screenshot below. Yes, you can get wifi passwords from an adb backup now!
Figure 1 - Snippet of Wifi saved settings from com.android.providers.settings.data showing SSIDs & passwords |
Figure 2 - Data from 'global' key |
Figure 3 - Data from 'system' key |
Figure 4 - Data from 'secure' key |
Figure 5 - Data from 'softap_config' key |
Figure 6 - Data from 'lock_settings' key |
Excellent article Sir Khatri !
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