init package from x-wrt

Signed-off-by: sbwml <admin@cooluc.com>

Makefile

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+#
+# Copyright (C) 2017-2019 Chen Minqiang <ptpt52@gmail.com>
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+
+PKG_NAME:=natflow
+PKG_VERSION:=20240812
+
+PKG_SOURCE_URL:=https://codeload.github.com/ptpt52/natflow/tar.gz/$(PKG_VERSION)?
+PKG_HASH:=6481e58eb4c22c36d9ed93f01519b0fff84c29ce088dc960639e65d1d58ccfc0
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+
+PKG_MAINTAINER:=Chen Minqiang <ptpt52@gmail.com>
+PKG_LICENSE:=GPL-2.0
+
+include $(INCLUDE_DIR)/package.mk
+
+define KernelPackage/natflow
+  CATEGORY:=X
+  SUBMENU:=Fast Forward Stacks
+  TITLE:=natflow kernel driver
+  KCONFIG:= \
+	    CONFIG_NF_CONNTRACK_MARK=y \
+	    CONFIG_NETFILTER_INGRESS=y
+  FILES:=$(PKG_BUILD_DIR)/natflow.ko
+  AUTOLOAD:=$(call AutoLoad,96,natflow)
+  DEPENDS:= +kmod-ipt-conntrack +kmod-ipt-nat +kmod-ipt-ipset +kmod-br-netfilter
+endef
+
+define KernelPackage/natflow/description
+  fast nat forward kmod
+endef
+
+include $(INCLUDE_DIR)/kernel-defaults.mk
+
+EXTRA_CFLAGS += -Wno-stringop-overread
+
+EXTRA_CFLAGS += -DCONFIG_NATFLOW_PATH -DCONFIG_NATFLOW_URLLOGGER -DNATFLOW_VERSION=\\\"$(PKG_VERSION)-$(shell echo $(PKG_HASH) | head -c7)\\\"
+ifneq ($(CONFIG_TARGET_mediatek_mt7622),)
+EXTRA_CFLAGS += -DCONFIG_HWNAT_EXTDEV_USE_VLAN_HASH
+endif
+
+define Build/Compile/natflow
+	+$(MAKE) $(PKG_JOBS) -C "$(LINUX_DIR)" \
+		EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
+		$(KERNEL_MAKE_FLAGS) \
+		ARCH="$(LINUX_KARCH)" \
+		CROSS_COMPILE="$(KERNEL_CROSS)" \
+		M="$(PKG_BUILD_DIR)" \
+		$(if $(CONFIG_KERNEL_DEBUG_INFO),,NO_DEBUG=1) \
+		modules
+endef
+
+define Build/Compile
+	$(call Build/Compile/natflow)
+endef
+
+define Package/natflow
+  SECTION:=net
+  CATEGORY:=Network
+  TITLE:=Natflow init script
+  DEPENDS:=+ethtool +kmod-natflow
+endef
+
+define Package/natflow/install
+	$(INSTALL_DIR) $(1)/etc/uci-defaults
+	$(INSTALL_BIN) ./files/70-luci-firewall-natflow $(1)/etc/uci-defaults
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/natflow.init $(1)/etc/init.d/natflow
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
+	$(INSTALL_DATA) ./files/21-natflow.hotplug $(1)/etc/hotplug.d/iface/21-natflow
+endef
+
+$(eval $(call KernelPackage,natflow))
+$(eval $(call BuildPackage,natflow))

files/21-natflow.hotplug

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+#!/bin/sh
+
+[ "$ACTION" = ifup -o "$ACTION" = ifupdate ] || exit 0
+[ "$ACTION" = ifupdate -a -z "$IFUPDATE_ADDRESSES" -a -z "$IFUPDATE_DATA" ] && exit 0
+
+logger -t natflow "reloading natflow due to $ACTION of $INTERFACE ($DEVICE)"
+/etc/init.d/natflow start &

files/70-luci-firewall-natflow

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+#!/bin/sh
+
+uci -q batch <<-EOF >/dev/null
+	delete ucitrack.@firewall[3]
+	add ucitrack firewall
+	set ucitrack.@firewall[3].init=natflow
+	commit ucitrack
+EOF
+
+exit 0

files/natflow.init

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+#!/bin/sh /etc/rc.common
+# Copyright (C) 2006-2011 OpenWrt.org
+
+START=95
+
+disable_gro_gso() {
+	for eth in $(ifconfig | grep "^eth\|^dsa|^lan|^wan" | awk '{print $1}' | sort | uniq); do
+		ethtool -k "$eth" | grep -q "generic-receive-offload: off" || {
+			ethtool -K "$eth" gro off
+			logger -t natflow "disable gro for <$eth>"
+		}
+		ethtool -k "$eth" | grep -q "generic-segmentation-offload: off" || {
+			ethtool -K "$eth" gso off
+			logger -t natflow "disable gso for <$eth>"
+		}
+	done
+}
+
+enable_gro_gso() {
+	for eth in $(ifconfig | grep "^eth\|^dsa|^lan|^wan" | awk '{print $1}' | sort | uniq); do
+		ethtool -k "$eth" | grep -q "generic-receive-offload: on" || {
+			ethtool -K "$eth" gro on
+			logger -t natflow "enable gro for <$eth>"
+		}
+		ethtool -k "$eth" | grep -q "generic-segmentation-offload: on" || {
+			ethtool -K "$eth" gso on
+			logger -t natflow "enable gro for <$eth>"
+		}
+	done
+}
+
+start() {
+	test -c /dev/natflow_ctl || return 0
+	[ "$(uci -q get firewall.@defaults[0].natflow)" != 1 ] && return 0
+	disable_gro_gso
+	delay_pkts=$(uci -q get firewall.@defaults[0].natflow_delay_pkts || echo 0)
+	echo disabled=0 >/dev/natflow_ctl
+	echo "delay_pkts=$delay_pkts" >/dev/natflow_ctl
+	echo ifname_clear >/dev/natflow_ctl
+}
+
+stop() {
+	test -c /dev/natflow_ctl || return 0
+	enable_gro_gso
+	echo disabled=1 >/dev/natflow_ctl
+}
+
+restart() {
+	start
+}