pamela/scanner/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
PAM_DIR="$(cd $(dirname $0) && pwd)"
PAM_CRON="/etc/cron.d/pamela"
PAM_SCRIPT="$PAM_DIR/$(basename $0)"
REGISTER=
IF='eth0'
OUT='http://yourserver.com/pamela/upload.php'
USER=''
PASSWORD=''
function usage {
echo "Usage: pamela-scanner [OPTIONS]
-i INTERFACE Interface to arp-scan. Defaults to [$IF].
-o URL The url of the pamela upload script (including /upload.php).
Defaults to [$OUT].
-r Register the script in cron every 2 minutes
-q Unregister the script from cron
-u Http-auth user. Defaults to [$USER].
-p Http-auth password. Defaults to [$PASSWORD].
-h Shows help
This pamela scanner is an arp-scanner that uploads mac addresses in your local
lan on a webserver where you get a visual representation of those mac addresses
present. Multiple people on multiple lans can run this or any other scanner
together against the same web server, where all results will be agregated."
}
function check_if_root {
if [ "$(id -ru)" != "0" ]
then
echo "Must be root to run pamela-scanner"
exit 1
fi
}
function check_if_arpscan_installed {
if [ -z "$(which arp-scan)" ]
then
echo "ENOARPSCAN: Could not find arp-scan, please install it"
fi
}
function register {
check_if_root
check_if_arpscan_installed
echo "Registering pamela in cron: $PAM_CRON"
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echo "*/2 * * * * [ -x \"$PAM_SCRIPT\" ] && \"$PAM_SCRIPT\" -i \"$IF\" -o \"$OUT\" -u \"$USER\" -p \"$PASSWORD\" | logger -t pamela" > "$PAM_CRON"
echo "Depending on your version of crond, you might have to restart the cron daemon for the changes to take effect"
}
function unregister {
check_if_root
echo "Unregistering pamela in cron: $PAM_CRON"
rm "$PAM_CRON"
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echo "Depending on your version of crond, you might have to restart the cron daemon for the changes to take effect"
}
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function parse_params {
TEMP=$(getopt -o 'hrqi:o:s:u:p:-n' "pamela arp scanner" -- "$@")
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;;
-u) USER="$2"; shift;;
-p) PASSWORD="$2"; shift;;
-r) REGISTER='r';;
-q) unregister; exit 0;;
-h|'-?') usage; exit 1;;
*) echo "Unknown param: [$1]"; usage; exit 1;;
esac
done
# Register only after parsing all args
if [ -n "$REGISTER" ]; then
register
exit 0
fi
}
function scan_and_upload {
echo $(date)" scanning..."
DATA=""
NUM_DATA=0
for M in $(arp-scan -R -i 10 --interface "$IF" --localnet | awk '{ print $2 }' | grep :.*: | sort | uniq)
do
[ -n "$DATA" ] && DATA="$DATA,$M" || DATA="$M";
let "NUM_DATA=NUM_DATA+1"
done
POST="data=$DATA"
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RESULT=$(wget "$OUT" -O - --quiet --post-data "$POST" --user "$USER" --password "$PASSWORD")
if [ -n "$RESULT" ]
then
echo Error uploading results:
echo "$RESULT"
fi
echo $(date)" Uploaded $NUM_DATA mac addresses..."
}
parse_params $@
check_if_root
check_if_arpscan_installed
scan_and_upload