Because BASH WIN
Contents
Well, this is not a real connection manager, but a bunch of notes and scripts. Eventually I managed to use just wpa_supplicant and a little script to check that the network is online (more to come)
Why?
Because Network Manager SUCKS A LOT, pick my ASS every time I do something by hand, it's a fucking bloatware, it's bugged, it's fucking SLOW and I HATE IT
Because SYSTEMD IS SHIT
Because PULSEAUDIO IS SHIT
Because AVAHI IS SHIT
Because resolveconf is A PILE OF SHIT
Because SYSTEMD IS SHIT, AGAIN
Because Connection Manager is a great command line tool but have some bugs
Because the network manager provided by Enlightenment is lovely but have some bugs
Because SYSTEMD IS SHIT
Because WHY have a fucking bloatware when I can connect to any wifi network with just a bunch of commands from a shell? WHY?!?
What I use NOW
Use of wpa fucking supplicant
You need to set /etc/wpa_supplicant/wpa_supplicant.conf as follow.
EXAMPLES
ctrl_interface=/var/run/wpa_supplicant
update_config=1
# any normal AP with password, wpa (wep unchecked)
network={
ssid="FRITZ!Box 7490"
psk="jesusfuckingchrist"
}
network={
ssid="OpenWrt"
psk="systemdshit"
}
# An OPEN AP without pw or security
network={
ssid="Vodafone-WiFi"
key_mgmt=NONE
# An OPEN AP with same ESSID of other AP around: here's how to connect specifically to that one!
# NOTE that bssid is a FUCKING STRING BUT doesn't require the " as any other string option in the config file.
# WHY, WHY THE FUCK IS THAT.
# THIS DROVE ME NUTS FOR AN ENTIRE WEEK. I HOPE WHO WROTE THE CONFIG FILE PARSER WILL PASS AN ENTIRE WEEK
# WITH HIS BOWELS EXPLODING SHIT EVERYWHERE.
network={
bssid=e4:8f:34:56:4f:0e
key_mgmt=NONE
}To use it, just launch
wpa_supplicant -dd -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf
-dd is for debugging.
CHECK if network is ok and relaunch dhclient accordingly
Sometime the wifi goes down and turn up again. But doing so, sometimes default route is cleared, I don't know why. So wifi turn on again, you are connected to wifi, but network doesn't work, you check, route -n and there's no fucking default gw. So you have to add it by hand (route add default gw etc. etc.) or you have to kill the fucking dhclient and re-launch it by hand.
This sexual harassment led me to write this script that automagically check the network / gw and KILL / relaunch dhclient accordingly.
INTERFACE="wlan0"
SERVICE="wpa_supplicant"
while :
do
wpa=`pidof $SERVICE`
if [ "${wpa:-null}" = null ]; then
echo "wpa_supplicant is DEAD"
else
echo "wpa_supplicant is running, pid $wpa "
gat=$(/sbin/ip route | awk '/default/ { print $3 }')
if [ "${gat:-null}" = null ]; then
echo "wpa_supplicant is running, but NO GATEWAY"
sleep 1 && killall dhclient && sleep 1 && dhclient -v $INTERFACE
else
echo "GW is $gat"
fi
fi
sleep 10
doneI just launch this on a shell and GW is checked every 10 seconds. So I'm pretty sure my fucking network connection will STAY THE FUCK ON
A very nice script to use
Here it is, thanks to Katolaz!
THIS IS THE REAL DEAL.
FUCK'N TASTIC! It does everything you need.
Old / Other things / Scratchpad
Scanning WIFI networks
iw wlan0 scan and a little grep
Let's awk, let's fuck ourselves
$1 ~ /^BSS/ {
if($2 !~ /Load:/) { #< Escape "BBS Load:" line
gsub("(\\(.*|:)", "", $2)
MAC = toupper($2)
wifi[MAC]["enc"] = "OPEN"
wifi[MAC]["WPS"] = "no"
wifi[MAC]["wpa1"] = ""
wifi[MAC]["wpa2"] = ""
wifi[MAC]["wep"] = ""
}
}
$1 == "SSID:" {
# fix spaces in SSID
FS=":" #< Changing field separator on ":", it should be
# forbidded sign for SSID name
$0=$0
sub(" ", "", $2) #< remove first whitespace
wifi[MAC]["SSID"] = $2
FS=" "
$0=$0
}
$1 == "capability:" {
for(i=2; i<=NF; i++) {
if($i ~ /0x[0-9]{4}/) {
gsub("(\\(|\\))", "", $i)
if (and(strtonum($i), 0x10))
wifi[MAC]["wep"] = "WEP"
}
}
}
$1 == "WPA:" {
wifi[MAC]["wpa1"] = "WPA1"
}
$1 == "RSN:" {
wifi[MAC]["wpa2"] = "WPA2"
}
$1 == "WPS:" {
wifi[MAC]["WPS"] = "yes"
}
$1 == "DS" {
wifi[MAC]["Ch"] = $5
}
$1 == "signal:" {
match($2, /-([0-9]{2})\.00/, m)
wifi[MAC]["Sig"] = m[1]
}
$1 == "TSF:" {
gsub("(\\(|d|,)", "", $4)
match($5, /([0-9]{2}):([0-9]{2}):/, m)
day = $4
hour = m[1]
min = m[2]
wifi[MAC]["TSF"] = day"d"hour"h"min"m"
}
END {
for (w in wifi) {
if (wifi[w]["wep"]) {
if (wifi[w]["wpa1"] || wifi[w]["wpa2"])
wifi[w]["enc"] = wifi[w]["wpa1"]wifi[w]["wpa2"]
else
wifi[w]["enc"] = "WEP"
}
printf "%s:%s:%s:%s:%s:%s:%s\n", w, wifi[w]["SSID"], wifi[w]["enc"], \
wifi[w]["WPS"], wifi[w]["Ch"], wifi[w]["Sig"], wifi[w]["TSF"]
}
}result seem good to me:
root@rover:/home/asbesto# iw wlan0 scan | awk -f parsa.awk 1C4997B6F02D:Linkem2.4GHz_51F02C:WPA2:yes:11:76:12d23h25m A491B1787677:FASTWEB-22032E:WPA2:yes:1:82:0d11h45m 121331D6EEA8:WOW FI - FASTWEB:WPA2:no:1:52:27d15h05m BA9E639DB4E7:Wiremore:WPA2:no:6:27:0d01h35m 628F34774344:Vodafone-Petacci:OPEN:no:12:70:1d07h59m root@rover:/home/asbesto#
Now, if one of those ESSID/MAC exist in our conf -> connect and fuck you
check in ESSID/MAC db
grep / awk into /etc/network/interface.ESSID ?
todo
Reta
RETA, "to net" in italian invented words
service networking stop cp /etc/network/interfaces.ESSIDDELCAZZO /etc/network/interfaces service networking start
SIMPLE AS FUCK
/etc/network/interfaces
generic dickhead WPA setup:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
auto wlan0
allow-hotplug
iface wlan0 inet dhcp
wpa-ssid wifi-del-cazzo
wpa-psk sucaminchiaGeneric open network, no pw, SSID only
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback auto wlan0 allow-hotplug iface wlan0 inet dhcp wireless-ap E4:8F:34:56:4F:0E wireless-essid Vodafone-WiFi
I choose to connect to a specific AP using the mac address because we have many AP with the same name in this area.
NOTE: I found wireless-ap settings only by GREAT LUCK, reading a TON OF SHIT:
DEBIANshit initscripts pass wireless-shit options directly to iwconfig, SO the option list can (only?) be found by reading https://linux.die.net/man/8/iwconfig
what the actual fuck
Also look the fucking /etc/network/if-pre-up.d/wireless-tools file
docs are scattered everywhere, jesus fucking christ
- to hell with god
The following shit is in italian language. I don't care. Your fault.
Parametri WPA senza wpasupplicant.conf
Almeno a partire da Lenny (Debian 5) è possibile configurare wpa_supplicant direttamente dal file /etc/network/interfaces; per fare ciò sarà però necessario modificare un poco la sintassi. Rifacendomi all'esempio sopra riportato (nel caso con DHCP, ma vale la stessa cosa per un indirizzo statico), il file unico di configurazione andrebbe scritto nel modo seguente:
auto wlan0
iface wlan0 inet dhcp
wpa-ssid NOME_RETE_WIRELESS
wpa-psk cc989812bc2cd489f960d8c1b2428d98d3c5555dac62d70ff691762fb4cc418a
evitando appunto la linea "pre-up wpa_supplicant -iwlan0 -c /etc/wpa_supplicant.conf -B" e dunque l'utilizzo del file "etc/wpa_supplicant.conf. Alla fine i due metodi di configurazione sono da considerarsi equivalenti; sarà infine solo la filosofia dell'utente ad indicare quale metodo sia il migliore (c'è chi preferisce configurare un file in meno nel sistema operativo e chi preferisce avere un file di configurazione "dedicato" per ogni funzione del sistema). In ogni caso, come sempre, prima viene la conoscenza delle possibilità e poi si potrà decidere in tutta calma :-).
Info.png Nota
È possibile che in alcune guide troverete la linea "wpa-driver wext" a seguire o a precedere le due citate; nonostante quest'opzione sia effettivamente necessaria, se la si tralascia è ciò che viene comunque selezionato per default: tanto vale allora dimenticarcela ;-).
Oltre alle opzioni "wpa-ssid" e "wpa-psk" (e "wpa-driver"), nel file /usr/share/doc/wpasupplicant/README.Debian.gz troverete tutte le altre possibilità che vi riportiamo qui sotto e utilizzabili a seconda dell'esigenza.
Element Example Value Description
======= ============= ===========
wpa-ssid plaintextstring sets the ssid of your network
wpa-bssid 00:1a:2b:3c:4d:5e the bssid of your AP
wpa-psk 0123456789...... your preshared wpa key. Use
wpa_passphrase(8) to generate your psk
from a passphrase and ssid pair
wpa-key-mgmt NONE, WPA-PSK, WPA-EAP, list of accepted authenticated key
IEEE8021X management protocols
wpa-group CCMP, TKIP, WEP104, list of accepted group ciphers for WPA
WEP40
wpa-pairwise CCMP, TKIP, NONE list of accepted pairwise ciphers for
WPA
wpa-auth-alg OPEN, SHARED, LEAP list of allowed IEEE 802.11
authentication algorithms
wpa-proto WPA, RSN list of accepted protocols
wpa-identity myplaintextname administrator provided username
(EAP authentication)
wpa-password myplaintextpassword your password (EAP authentication)
wpa-scan-ssid 0 or 1 toggles scanning of ssid with specific
Probe Request frames
wpa-ap-scan 0 or 1 or 2 adjusts the scanning logic of
wpa_supplicant