net/softflowd: import from packages and update to latest version

Signed-off-by: Ross Vandegrift <ross@kallisti.us>

net/softflowd/files/softflowd.config

@@ -0,0 +1,14 @@
+config softflowd
+	option enabled        '0'
+	option interface      'br-lan'
+	option pcap_file      ''
+	option timeout        ''
+	option max_flows      '8192'
+	option host_port      ''
+	option pid_file       '/var/run/softflowd.pid'
+	option control_socket '/var/run/softflowd.ctl'
+	option export_version '5'
+	option hoplimit       ''
+	option tracking_level 'full'
+	option track_ipv6     '0'
+	option sampling_rate  '100'

net/softflowd/files/softflowd.init

@@ -0,0 +1,74 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2007-2011 OpenWrt.org
+
+START=50
+
+append_bool() {
+	local section="$1"
+	local option="$2"
+	local value="$3"
+	local _val
+	config_get_bool _val "$section" "$option" '0'
+	[ "$_val" -gt 0 ] && append args "$3"
+}
+
+append_string() {
+	local section="$1"
+	local option="$2"
+	local value="$3"
+	local _val
+	config_get _val "$section" "$option"
+	[ -n "$_val" ] && append args "$3 $_val"
+}
+
+start_instance() {
+	local section="$1"
+
+	config_get_bool enabled "$section" 'enabled' '0'
+	[ $enabled -gt 0 ] || return 1
+
+	config_get pid_file "$section" 'pid_file'
+
+	args=""
+	append_string "$section" 'interface' '-i'
+	append_string "$section" 'pcap_file' '-r'
+	append_string "$section" 'timeout' '-t'
+	append_string "$section" 'max_flows' '-m'
+	append_string "$section" 'host_port' '-n'
+	append_string "$section" 'pid_file' '-p'
+	append_string "$section" 'control_socket' '-c'
+	append_string "$section" 'export_version' '-v'
+	append_string "$section" 'hoplimit' '-L'
+	append_string "$section" 'tracking_level' '-T'
+	append_string "$section" 'sampling_rate' '-s'
+	append_bool "$section" track_ipv6 '-6'
+
+	SERVICE_PID_FILE="$pid_file" \
+	service_start /usr/sbin/softflowd $args${pid_file:+ -p $pid_file}
+}
+
+stop_instance() {
+	local section="$1"
+
+	config_get_bool enabled "$section" 'enabled' '0'
+	[ $enabled -gt 0 ] || return 1
+
+	config_get control_socket "$section" 'control_socket'
+
+	[ -n "control_socket" -a -S $control_socket ] && {
+		/usr/sbin/softflowctl -c $control_socket exit
+	}
+}
+
+start() {
+	mkdir -m 0755 -p /var/empty
+
+	config_load 'softflowd'
+	config_foreach start_instance 'softflowd'
+}
+
+stop() {
+	config_load 'softflowd'
+	config_foreach stop_instance 'softflowd'
+	service_stop /usr/sbin/softflowd
+}