42 lines
1.4 KiB
Text
Executable file
42 lines
1.4 KiB
Text
Executable file
#!/sbin/runscript
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# Copyright 1999-2004 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/net-analyzer/p0f/files/p0f.initd3,v 1.1 2007/03/28 20:41:44 cedk Exp $
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start() {
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ebegin "Starting p0f"
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# The 'tcp and tcp[13] & 2 = 2' requires at least syn set.
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# An alternative would be 'tcp and tcp[13] & 0x3f = 2', which
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# is syn and no other major flags (but ECN enabled packets are OK)
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if [ -z "$BpfFilter" ]; then
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BpfFilter='tcp and tcp[13] & 2 = 2'
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else
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BpfFilter="$BpfFilter and tcp and tcp[13] & 2 = 2"
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fi
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# The command in backticks returns all the local IP addresses on this machine.
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for OneIP in `/sbin/ifconfig 2>/dev/null | grep 'inet addr' | sed -e 's/.*addr://' -e 's/ .*//'` ; do
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BpfFilter="$BpfFilter and not src host $OneIP"
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done
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# Create a lock file.
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mkdir -p /var/lock/subsys
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touch /var/lock/subsys/p0f
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# Start up p0f and filter out all packets originating from any of this machines IP's.
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if [ -z "${P0FLOGFILE}" ]; then
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P0FLOGFILE="/var/log/p0f"
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fi
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einfo "Logfile: ${P0FLOGFILE}"
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start-stop-daemon --start --quiet --pidfile /var/run/p0f.pid --exec /usr/sbin/p0f -- -i "${P0FDEVICE}" \
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${P0FOPTIONS} -o "${P0FLOGFILE}" -d "${BpfFilter}" 2>/dev/null
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eend ${?}
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}
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stop() {
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ebegin "Stopping p0f"
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start-stop-daemon --stop --quiet --pidfile /var/run/p0f.pid
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rm -f /var/lock/subsys/p0f
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eend ${?}
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}
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