pamela/pamela-scanner.sh

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#!/bin/bash
<<LICENSE
Copyright 2009 Pieter Iserbyt
This file is part of Pamela.
Pamela is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Pamela is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Pamela. If not, see <http://www.gnu.org/licenses/>.
LICENSE
function usage {
echo 'Usage: pamela-scanner [OPTIONS]
-i INTERFACE Interface to arp-scan
-o URL The url of the pamela upload script (including /upload.php)
-s TIME The time to sleep between scans in seconds.
-h Shows help
Pamela is an arp-scanner, it uploads the mac addresses in your local lan on a
webserver where you get a visual representation of the mac addresses present.
Multiple people on multiple lans can run pamela together against the same
server, where all results are agregated. In short, pamela gives you an overview
of how big the shared network is.'
exit 1
}
IF='wlan0'
OUT='http://hackerspace.be/pam/upload.php'
SLEEP='120'
TEMP=$(getopt -o 'hi:o:s:-n' "pamela arp scanner" -- "$@")
if [ $? != 0 ] ; then echo "Could not parse parameters..." >&2 ; exit 1 ; fi
eval set "$TEMP"
while true
do
shift;
[ -z "$1" ] && break;
case "$1" in
-i) IF="$2"; shift;;
-o) OUT="$2"; shift;;
-s) SLEEP="$2"; shift;;
-h|'-?') usage; break;;
*) echo "Unknown param: [$1]"; usage; exit 1;
esac
done
if [ "$(id -ru)" != "0" ]
then
echo "Must be root to run pamela-scanner"
exit 1
fi
if [ -z "$(which arp-scan)" ]
then
echo "ENOARPSCAN: Could not find arp-scan, please install it"
fi
while true
do
echo $(date)" scanning..."
NETMASK="$(ip -4 addr show "$IF" | egrep -o "brd [0-9\.]+" | egrep -o "[0-9\.]+")"
MACS=""
NUM_MACS=0
for M in $(arp-scan -R -i 10 --interface "$IF" --localnet | awk '{ print $2 }' | grep :.*: | sort | uniq)
do
[ -n "$MACS" ] && MACS="$MACS,$M" || MACS="$M";
let "NUM_MACS=NUM_MACS+1"
done
POST="sn=$NETMASK&macs=$MACS"
RESULT=$(wget "$OUT" -O - --quiet --post-data "$POST" || echo "wget error: $?")
if [ -n "$RESULT" ]
then
echo Error uploading results:
echo "$RESULT"
fi
echo $(date)" Uploaded $NUM_MACS mac addresses..."
echo $(date)" sleeping..."
sleep "$SLEEP"
done