[SOLVED][Feature Request]Wifi Key import via /boot/wifikeyfile.txt

cyperghost

I solved the issue. We can import any WIFI and SSID that is setted to file /boot/wifikeyfile.txt

An example forwifikeyfile.txt is:

ssid="WIFI BASE SSID"
psk="Secret Key"

This will result to etc/wpa_supplicant/wpa_supplicant.conf
You see annother WIFI setting is just placed under your current settings.
So easily new configs can be imported and appended to WIFI setup.

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
# RETROPIE CONFIG START
network={
	ssid="RealNetwork1"
	psk="RealKey1"
}
# RETROPIE CONFIG END
network={
	ssid="WIFI BASE SSID"
	#psk="Secret Key"
	psk=5bee4223648102a29c09b2b52bbd2fc920c4d90ced9292781477d1bf219b753a
}

All this is done by this small Bashfile Wifikeyimport.sh

#!/bin/bash
# Wifikeyimporter by cyperghost
# For RetroPie - greetz fly out to Vika, BuZz, Cott, meleu

# Path to Wifi keyfile
wifikeyfile="/boot/wifikeyfile.txt"

# Sample wifikeyfile.txt ... place it to /boot/wifikeyfile.txt
# psk="Your WIFI password"
# ssid="WIFI SSID"

. $wifikeyfile

echo "Wifi SSID in wifikeyfile is named: " $ssid
echo "Setted Password is: "$psk

sudo -i|wpa_passphrase "$ssid" "$psk" >> /etc/wpa_supplicant/wpa_supplicant.conf & exit

All we need is to locate the bash file posted above into RetroPiemenu! So we need NO keyboard to import setted wifi keys.

For further information read here

Knowledge is power :)
This is my first batch file for unix systems - so excuse me for noobish errors
It works for my current setup and login for user Pi ... can someone please verify?

Important: Make wifikeyimport.sh executeable, then login as pi and use SUDO command. Two ways

sudo ./wifikeyimport.sh
sudo bash wifikeyimport.sh

BuZz

I will add the facility to use this configuration file from the wifi module. Cheers.

cyperghost

@BuZz That would be nice!

BuZz

@cyperghost implemented. Went with your naming convention.

https://github.com/RetroPie/RetroPie-Setup/commit/d745cebe823820d115afa01e2359dcd6005ce443

cyperghost

@BuZz
That's a nice one! Works 100%

Test area:
I connected via Wifi SSH to Raspberry.
Imported wrong (default sample keyfile) >> Lost connection

Powered Off Raspberry, removed SD card, inserted in Windows mashine
Opend wifikeyfile.txt from FAT32 partition via editor (Notepad ++ is the better choice!)
Changed default entries to correct password.

Back to Raspberry, RetroPie Menu, Select Wifi
Imported now right setted keyfile >> Connections established!

Thank you so much! It was never so easy ;)
All without keyboard :)

I see my noob-code-style is totally converted to professional-style :)

cyperghost

@BuZz
One question to your latest coding...

 if [[ -f "/boot/wifikeyfile.txt" ]]; then
                        iniConfig " = " "\"" "/boot/wifikeyfile.txt"
                        iniGet "ssid"
                        local ssid="$ini_value"
                        iniGet "psk"
                        local psk="$ini_value"
                        create_config_wifi "wpa" "$ssid" "$psk"
                        gui_connect_wifi
                 else

The line create_config_wifi "wpa" "$ssid" "$psk" is to create a WPA network. Do you think it makes sense to add a third key to wifikeyfile.txt that sets the encryption? If the value is empty then WPA can be set as default. What do you think?

I think 99% of all WIFI networks work with WPA so it isn't a important feature.

BuZz

Sorry for late reply - must have missed this.

we could but as you say - does anyone use wep etc now ? It would be an easy change though so I'll make a note.

RetroProgramming

I know this one is marked as [SOLVED] but I have an issue with this function.

I tried it with image 4.1.
I created the wifikeyfile.txt with the standard Windows Notepad.
Windows seperates lines by 0x0D 0x0A. This causes a problem.

After importing the file the 0x0D is still attached to the ssid + psk and the connection fails.

I guess there are a lot auf Windows-Users and perhaps it is possible to remove the 0x0D to solve this issue.

herb_fargus

@RetroProgramming use notepad++ with Unix line endings

RetroProgramming

I know what to do, but do you really want to tell every avarage Windows-User to install an extra tool to edit this tiny file?

BuZz

I will sort it.

BuZz

Should handle CRLF files now.

DP

Thanks for adding this great feature so we can configure wifi networks without a keyboard! At the moment you can only connect to one wifi network with the script, would it possible to reprogram it to define a number of wifi networks to choose from? I would like this feature as sometimes I want to take my retropie to a friend's house or use the wifi hotspot on my phone and this would save bringing a keyboard along.

Thanks again,
DP

BuZz

@DP That is beyond the scope of what I think would be useful for most people vs effort to implement. If you want to preconfigure your system for multiple wifi networks you can do so manually by editing /etc/wpa_supplicant/wpa_supplicant.conf and add some additional network blocks.

DP

@BuZz That's fair enough. Thanks for the suggestion, I was able to pre-configure my wifi networks manually although I had to set update_config=0 otherwise the file would get overwritten. It seems like a bit of an oversight that when switching networks it always asks for a psk even if it already provided within wpa_supplicant.conf but it works for my purposes now so I'm happy!

Thanks for your help!

cyperghost

@DP Sorry for being late .... you can modify the bash file I've created in first posting.
This will append wifi settings to wpa_supplicant. The PW will also be hashed btw...

The solution @BuZz created is a fine (to be true finest) way to connect to network. After network is established you can do anything you want.... for example create a bash file by yourself to add more networks and just put it in ES config menu :)

RetroProgramming

@BuZz said in [SOLVED][Feature Request]Wifi Key import via /boot/wifikeyfile.txt:

Should handle CRLF files now.

Thanks, looks good now.

cyperghost

For info:
you can use this side to create hashed keys
https://www.wireshark.org/tools/wpa-psk.html

Just enter SSID and PW and it will generate hashed key.
Knowledge is power!

jseibert81

Guys. There is no obvious explanation as to how or where to put this file. I see the scripts an that is it. I am not able to use the pi finder utility. I am trying to manually add the wifikeyfile.txt. How?

herb_fargus

@jseibert81 sure there is. Right in the docs:

https://retropie.org.uk/docs/Wifi/#connecting-to-wifi-without-a-keyboard