Wifiweasel
From Openmoko
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iwlist $IFACE scanning | awk -F '[ :=]+' '/(ESS|Freq|Qual)/{ printf $3" " } /Encr/{ print $4 }' \ | iwlist $IFACE scanning | awk -F '[ :=]+' '/(ESS|Freq|Qual)/{ printf $3" " } /Encr/{ print $4 }' \ | ||
| sort -k4 -k3nr |grep off \ | | sort -k4 -k3nr |grep off \ | ||
| − | |awk '{print $1}' | + | |awk '{print $1}' > /tmp/weasel |
| + | sed /\"/s/\"//g /tmp/weasel > /tmp/ESSID | ||
} | } | ||
#### iface up Funk ######## | #### iface up Funk ######## | ||
Func_ifconfig_up () { | Func_ifconfig_up () { | ||
| − | iwconfig $IFACE essid | + | iwconfig $IFACE essid `cat /tmp/ESSID` |
} | } | ||
#### iface down Funk ##### | #### iface down Funk ##### | ||
Revision as of 12:32, 22 July 2008
script to Auto connect to Open wirelss 81102 AP's
wifiweasel
wifiweasel v1 once run this script takes control of the wireless interface detects and connects to strongest open wifi AP in the vicinity and checks connectivity every X seconds if connection fails the whole proccess repeats itself
#!/bin/sh
#####################
###########################
#/var/wifi/hacker/kd8ikt###
# OMG i'm programming now!#
###########################
###we.trekbeyond.org#######
#####################
#KISS#
# CONFIG
#######interface################
IFACE=eth0
#
#####host
HOST=myspace.com
#
###heh#ping#flood#the#net#poison
#
#check connectivity every X sec
X=30
#
# /CONFIG
################################
#### Scan Funk ####
Func_iwlist_open () {
iwlist $IFACE scanning | awk -F '[ :=]+' '/(ESS|Freq|Qual)/{ printf $3" " } /Encr/{ print $4 }' \
| sort -k4 -k3nr |grep off \
|awk '{print $1}' > /tmp/weasel
sed /\"/s/\"//g /tmp/weasel > /tmp/ESSID
}
#### iface up Funk ########
Func_ifconfig_up () {
iwconfig $IFACE essid `cat /tmp/ESSID`
}
#### iface down Funk #####
Func_ifconfig_down () {
killall udhcpc
ifconfig $IFACE down
}
#### Conn Funk #####
Func_chk_net () {
ping -w 2 -c 1 $HOST
if [ $=0 ];then ERROR=0; echo Online! ;sleep $X; Func_chk_net ;
fi #W00T
if [ $=1 ] ; then ERROR=1 ;echo FAILING; Func_Main ;
fi
}
#### Main Funk #########
Func_MAIN () { while [ ERROR=1 ] ; do
Func_ifconfig_down ;
Func_ifconfig_up Func_iwlist_open;
udhcpc $IFACE ;
Func_ch_net
done;
}
#### MAIN ####
Func_ifconfig_down ;
Func_ifconfig_up $Func_iwlist_open ;
udhcpc $IFACE ;
Func_chk_net ;
echo This is the end my only friend the end
Done;
#####################EOF###############
to be implemented
instead of pinging net hosts which could quickly start dropping pkts we will ping the router via ip route show to 0/0
sandbox
iwscan perl
#!/usr/bin/perl
# Tim Osburn - tim@osburn.com
#
# install perl
$iwlist = "/sbin/iwlist eth0 scanning";
open scan, "$iwlist |";
while (<scan>) {
if (/^\s+Cell (\S+) - Address: (\S+)/) {
$CELL=$1;
$ADDRESS=$2;
# print "$1 $2";
$INLOOP=1;
}
if (/^\s+ESSID:(\S+)/) {
$ESSID=$1;
print " $1";
}
if (/^\s+Frequency:\S+ \S+ \(Channel (\S+)\)/) {
$CHAN=$1;
print " $1";
}
if (/^\s+Quality=\S+\s+Signal level=(\S+).*/) {
$SIGNAL=$1;
print " $1";
}
if (/^\s+Encryption key:(\S+)/) {
$ENCRYPTION=$1;
print " $1\n";
}
}
close scan;
produces output in the form of "essid" channel signal_strength encryption_status
"ESSID_NAME1" 1 -82 on
"ESSID_NAME2" 1 -49 off
