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# wifcap - WIFI capture helper
# 2012 laurent@gouloum.fr
script=`basename $0`
if [ $# -lt 3 -o $# -gt 4 ]; then
echo "usage: $script output-prefix iface channel [libpcap_filter]"
echo -e "\t\tchannel=x: activate hopping by running airodump-ng w/o channel"
echo "example: sudo $script nadege-flat wlan0 x"
exit 1
fi
if [ `id -u` -ne 0 ]; then
echo "must be root"
exit 1
fi
prefix=$1
iface=$2
channel=$3
if [ $# -eq 4 ]; then
filter=$4
else
filter=""
fi
iface_mon=mon0
date=$(date +%Y%m%d-%H%M%S)
output="${date}_${prefix}"
ifconfig $iface_mon >/dev/null 2>&1
if [ $? -ne 0 ]; then
airmon-ng start $iface
fi
if [ $channel != "x" ]; then
channel_cmd="--chan $channel"
output="$output-c$channel"
else
channel_cmd=""
fi
output="$output.pcap"
tmux new-session -d -s wifcap "set -x; tcpdump -Z nobody -s0 -w \"$output\" -ni $iface_mon $filter"
tmux new-window -t wifcap "airodump-ng -i $iface_mon $channel_cmd"
tmux attach-session -t wifcap
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