Initial commit

package/qca/qca-nss-ecm/files/qca-nss-ecm.init

@@ -0,0 +1,118 @@
+#!/bin/sh  /etc/rc.common
+#
+# Copyright (c) 2014, 2019 The Linux Foundation. All rights reserved.
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# The shebang above has an extra space intentially to avoid having
+# openwrt build scripts automatically enable this package starting
+# at boot.
+
+START=19
+
+get_front_end_mode() {
+	config_load "ecm"
+	config_get front_end global acceleration_engine "auto"
+
+	case $front_end in
+	auto)
+		echo '0'
+		;;
+	nss)
+		echo '1'
+		;;
+	sfe)
+		echo '2'
+		;;
+	*)
+		echo 'uci_option_acceleration_engine is invalid'
+	esac
+}
+
+support_bridge() {
+	#NSS support bridge acceleration
+	[ -d /sys/kernel/debug/ecm/ecm_nss_ipv4 ] && return 0
+	#SFE doesn't support bridge acceleration
+	[ -d /sys/kernel/debug/ecm/ecm_sfe_ipv4 ] && return 1
+}
+
+load_sfe() {
+	[ -d /sys/module/shortcut_fe ] || insmod shortcut-fe
+	[ -d /sys/module/shortcut_fe_ipv6 ] || insmod shortcut-fe-ipv6
+	[ -d /sys/module/shortcut_fe_drv ] || insmod shortcut-fe-drv
+}
+
+load_ecm() {
+	[ -d /sys/module/ecm ] || {
+		[ ! -e /proc/device-tree/MP_256 ] && load_sfe
+		insmod ecm front_end_selection=$(get_front_end_mode)
+	}
+
+	support_bridge && {
+		sysctl -w net.bridge.bridge-nf-call-ip6tables=1
+		sysctl -w net.bridge.bridge-nf-call-iptables=1
+	}
+}
+
+unload_ecm() {
+	sysctl -w net.bridge.bridge-nf-call-ip6tables=0
+	sysctl -w net.bridge.bridge-nf-call-iptables=0
+
+	if [ -d /sys/module/ecm ]; then
+		#
+		# Stop ECM frontends
+		#
+		echo 1 > /sys/kernel/debug/ecm/front_end_ipv4_stop
+		echo 1 > /sys/kernel/debug/ecm/front_end_ipv6_stop
+
+		#
+		# Defunct the connections
+		#
+	        echo 1 > /sys/kernel/debug/ecm/ecm_db/defunct_all
+		sleep 5;
+
+		rmmod ecm
+		sleep 1
+	fi
+}
+
+start() {
+	load_ecm
+
+	# If the acceleration engine is NSS, enable wifi redirect.
+	[ -d /sys/kernel/debug/ecm/ecm_nss_ipv4 ] && sysctl -w dev.nss.general.redirect=1
+
+	support_bridge && {
+		echo 'net.bridge.bridge-nf-call-ip6tables=1' >> /etc/sysctl.d/qca-nss-ecm.conf
+		echo 'net.bridge.bridge-nf-call-iptables=1' >> /etc/sysctl.d/qca-nss-ecm.conf
+	}
+
+	if [ -d /sys/module/qca_ovsmgr ]; then
+		insmod ecm_ovs
+	fi
+
+}
+
+stop() {
+	# If the acceleration engine is NSS, disable wifi redirect.
+	[ -d /sys/kernel/debug/ecm/ecm_nss_ipv4 ] && sysctl -w dev.nss.general.redirect=0
+
+	sed '/net.bridge.bridge-nf-call-ip6tables=1/d' -i /etc/sysctl.d/qca-nss-ecm.conf
+	sed '/net.bridge.bridge-nf-call-iptables=1/d' -i /etc/sysctl.d/qca-nss-ecm.conf
+
+	if [ -d /sys/module/ecm_ovs ]; then
+		rmmod ecm_ovs
+	fi
+
+	unload_ecm
+}