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#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: p0f
# REQUIRE: LOGIN
# KEYWORD: shutdown
# Add the following lines to /etc/rc.conf.local or /etc/rc.conf
# to enable this service:
# p0f_enable (bool): Set it to YES to enable p0f.
# Default: NO.
#
# p0f_user (str) User to drop privileges and change to.
# Default: p0f.
#
# p0f_sock (path): Path to socket used to communicate with p0f.
# Default: /var/run/p0f.sock
#
# p0f_db (path): Location of fingerprint db.
# Default: %%PREFIX%%/etc/p0f.fp
#
# p0f_flags (str): Options passed to the p0f daemon.
# Default: "-d -u ${p0f_user} -s ${p0f_sock} -f ${p0f_db}"
#
# command_args (str): Optional pcap-style traffic filtering rules.
# See p0f README for details.
. /etc/rc.subr
name="p0f"
rcvar=p0f_enable
load_rc_config "$name"
: ${p0f_enable:="NO"}
: ${p0f_user:="p0f"}
: ${p0f_sock:="/var/run/${name}.sock"}
: ${p0f_db:="%%PREFIX%%/etc/p0f.fp"}
: ${p0f_flags:="-d -u ${p0f_user} -s ${p0f_sock} -f ${p0f_db}"}
command="%%PREFIX%%/bin/${name}"
pidfile="/var/run/${name}.pid"
required_files="${p0f_db}"
start_cmd="${name}_start"
stop_postcmd="rm -f ${p0f_sock} $pidfile"
extra_commands="reload"
p0f_get_pid() {
PID=$(/bin/ps waux | /usr/bin/grep ${command} | /usr/bin/grep -v grep | /usr/bin/grep ${p0f_sock} | /usr/bin/awk '{print $2}')
}
p0f_start() {
p0f_get_pid
if [ -z "${PID}" ] ; then
echo "Starting ${name}."
if [ ! -z "${command_args}" ] ; then
${command} ${p0f_flags} "${command_args}"
else
${command} ${p0f_flags}
fi
if [ ! -z "${pidfile}" ] ; then
p0f_get_pid
[ -z "${PID}" ] || echo ${PID} > ${pidfile}
fi
else
echo "${name} already running? (pid=${PID})."
fi
}
run_rc_command "$1"
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