Initial commit

package/qca/qca-nss-ecm/files/ecm_dump.sh

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+#!/bin/sh
+#
+# Copyright (c) 2015-2016, 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.
+#
+
+ECM_MODULE=${1:-ecm_state}
+MOUNT_ROOT=/dev/ecm
+
+#
+# usage: ecm_dump.sh [module=ecm_db]
+#
+# with no parameters, ecm_dump.sh will attempt to mount the
+# ecm_db state file and cat its contents.
+#
+# example with a parameter: ecm_dump.sh ecm_classifier_default
+#
+# this will cause ecm_dump to attempt to find and mount the state
+# file for the ecm_classifier_default module, and if successful
+# cat the contents.
+#
+
+# this is one of the state files, which happens to be the
+# last module started in ecm
+ECM_STATE=/sys/kernel/debug/ecm/ecm_state/state_dev_major
+
+# tests to see if ECM is up and ready to receive commands.
+# returns 0 if ECM is fully up and ready, else 1
+ecm_is_ready() {
+	if [ ! -e "${ECM_STATE}" ]
+	then
+		return 1
+	fi
+	return 0
+}
+
+#
+# module_state_mount(module_name)
+#      Mounts the state file of the module, if supported
+#
+module_state_mount() {
+	local module_name=$1
+	local mount_dir=$2
+	local state_file="/sys/kernel/debug/ecm/${module_name}/state_dev_major"
+
+	if [ -e "${mount_dir}/${module_name}" ]
+	then
+		# already mounted
+		return 0
+	fi
+
+	#echo "Mount state file for $module_name ..."
+	if [ ! -e "$state_file" ]
+	then
+		#echo "... $module_name does not support state"
+		return 1
+	fi
+
+	local major="`cat $state_file`"
+	#echo "... Mounting state $state_file with major: $major"
+	mknod "${mount_dir}/${module_name}" c $major 0
+}
+
+#
+# main
+#
+ecm_is_ready || {
+	#echo "ECM is not running"
+	exit 1
+}
+
+# all state files are mounted under MOUNT_ROOT, so make sure it exists
+mkdir -p ${MOUNT_ROOT}
+
+#
+# attempt to mount state files for the requested module and cat it
+# if the mount succeeded
+#
+module_state_mount ${ECM_MODULE} ${MOUNT_ROOT} && {
+	cat ${MOUNT_ROOT}/${ECM_MODULE}
+	exit 0
+}
+
+exit 2

package/qca/qca-nss-ecm/files/on-demand-down

@@ -0,0 +1,6 @@
+#!/bin/sh
+# Copyright (c) 2016 The Linux Foundation. All rights reserved.
+
+[ -e "/sys/kernel/debug/ecm/ecm_db/defunct_all" ] && {
+	echo 1 > /sys/kernel/debug/ecm/ecm_db/defunct_all
+}

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

@@ -0,0 +1,28 @@
+#!/bin/sh
+#
+# Copyright (c) 2015-2016, 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.
+#
+
+uci -q batch << EOF
+	delete firewall.qcanssecm
+	set firewall.qcanssecm=include
+	set firewall.qcanssecm.type=script
+	set firewall.qcanssecm.path=/etc/firewall.d/qca-nss-ecm
+	set firewall.qcanssecm.family=any
+	set firewall.qcanssecm.reload=1
+	commit firewall
+EOF
+
+exit 0

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

@@ -0,0 +1,18 @@
+#!/bin/sh
+#
+# Copyright (c) 2015-2016, 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.
+#
+
+iptables -A FORWARD -m physdev --physdev-is-bridged -j ACCEPT

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
+}

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

@@ -0,0 +1,2 @@
+# nf_conntrack_tcp_no_window_check is 0 by default, set it to 1
+net.netfilter.nf_conntrack_tcp_no_window_check=1

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

@@ -0,0 +1,2 @@
+config ecm 'global'
+	option acceleration_engine 'auto'