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|
#!/bin/sh
### BEGIN INIT INFO
# Provides: softflowd
# Required-Start: $network $remote_fs $syslog
# Required-Stop: $network $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Flow-based network traffic analyser
# Description: Manage all softflowd exports defined in
# /etc/softflowd/*.conf
### END INIT INFO
PATH=/sbin:/usr/sbin:/bin:/usr/bin
name=softflowd
description='Flow-based network traffic analyser'
softflowd="/usr/sbin/$name"
pid_dir="/var/run/$name/"
privdrop_chroot_dir='/var/run/softflowd/chroot'
[ -x "$softflowd" ] || exit 0
if [ "$1" = 'start' ]; then
mkdir -p "$privdrop_chroot_dir"
if [ -e /var/run/softflowd.ctl ]; then
[ -L /var/run/softflowd.ctl ] || rm /var/run/softflowd.ctl
fi
[ -e /var/run/softflowd.ctl ] || ln -s /var/run/softflowd/default.ctl /var/run/softflowd.ctl
install -D -p /etc/protocols "$privdrop_chroot_dir/etc/protocols"
fi
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB functions
. /lib/lsb/init-functions
# Start a softflowd instance
#
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
do_start() {
local instance config
instance="$1"
config="$2"
sh -n "$config" 2>/dev/null || return 2
interface=
options=
. "$config"
[ "$interface" ] || return 2
local pid_file ctl_sock
pid_file="$pid_dir$instance.pid"
ctl_sock="$pid_dir$instance.ctl"
start-stop-daemon --start --quiet \
--pid_file "$pid_file" --exec "$softflowd" --test >/dev/null ||
return 1
# shellcheck disable=SC2086 # We have to trust the config file
start-stop-daemon --start --quiet \
--pid_file "$pid_file" \
--exec "$softflowd" -- \
-p "$pid_file" -c "$ctl_sock" \
-i "$interface" $options ||
return 2
sleep 1
start-stop-daemon --start --quiet \
--pid_file "$pid_file" --exec "$softflowd" --test >/dev/null &&
return 2
}
# Stop a softflowd instance
#
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
do_stop() {
local instance pid_file retval
instance="$1"
pid_file="$pid_dir/$instance.pid"
start-stop-daemon --stop --quiet \
--retry=TERM/30/KILL/5 --pid_file "$pid_file" --name "$name"
retval="$?"
[ "$retval" = 2 ] && return 2
# Many daemons don't delete their pidfiles when they exit.
rm -f "$pid_file"
return "$retval"
}
exit=0
do_action() {
local config
config="$1"
instance="$(basename "${config%%.conf}")"
case "$action" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $description" "$instance"
do_start "$instance" "$config"
case "$?" in
0 | 1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2)
[ "$VERBOSE" != no ] && log_end_msg 1
exit=1
;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $description" "$instance"
do_stop "$instance"
case "$?" in
0 | 1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2)
[ "$VERBOSE" != no ] && log_end_msg 1
exit=1
;;
esac
;;
status)
status_of_proc -p "$pid_dir/$instance.pid" "$softflowd" "softflowd instance $instance" || exit=$?
;;
restart | force-reload)
log_daemon_msg "Restarting $description" "$instance"
do_stop "$instance"
case "$?" in
0 | 1)
do_start "$instance" "$config"
case "$?" in
0) log_end_msg 0 ;;
*)
# Old process is still running or
# failed to start
log_end_msg 1
;;
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
echo "Usage: /etc/init.d/softflowd {start|stop|status|restart|force-reload} [<instance> ...]" >&2
exit 3
;;
esac
}
action="$1"
shift
if [ "$1" ]; then
while [ "$1" ]; do
config="/etc/softflowd/$1.conf"
if [ -f "$config" ]; then
do_action "$config"
fi
shift
done
else
for config in /etc/softflowd/*.conf; do
if [ -f "$config" ]; then
do_action "$config"
fi
done
fi
exit $exit
|
