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- #!/sbin/runscript
- # Copyright 1999-2004 Gentoo Foundation
- # Distributed under the terms of the GNU General Public License v2
- # $Header: /var/cvsroot/gentoo-x86/net-analyzer/p0f/files/p0f.initd2,v 1.1 2005/06/19 01:54:40 vanquirius Exp $
-
- start() {
- ebegin "Starting p0f"
- # The 'tcp and tcp[13] & 2 = 2' requires at least syn set.
- # An alternative would be 'tcp and tcp[13] & 0x3f = 2', which
- # is syn and no other major flags (but ECN enabled packets are OK)
- if [ -z "$BpfFilter" ]; then
- BpfFilter='tcp and tcp[13] & 2 = 2'
- else
- BpfFilter="$BpfFilter and tcp and tcp[13] & 2 = 2"
- fi
-
- # The command in backticks returns all the local IP addresses on this machine.
- for OneIP in `/sbin/ifconfig 2>/dev/null | grep 'inet addr' | sed -e 's/.*addr://' -e 's/ .*//'` ; do
- BpfFilter="$BpfFilter and not src host $OneIP"
- done
-
- # Create a lock file.
- mkdir -p /var/lock/subsys
- touch /var/lock/subsys/p0f
-
- # Start up p0f and filter out all packets originating from any of this machines IP's.
- einfo "Logfile: ${P0FLOGFILE}"
- start-stop-daemon --start --quiet --exec /usr/sbin/p0f -- -i "${P0FDEVICE}" \
- "${P0FOPTIONS}" "${P0FLOGFILE}" "${BpfFilter}" >> "/var/log/p0f" 2>&1 &
- eend ${?}
- }
-
- stop() {
- ebegin "Stopping p0f"
- start-stop-daemon --stop --quiet --exec /usr/sbin/p0f
- rm -f /var/lock/subsys/p0f
- eend ${?}
- }
-