From 462a79d4dcd36e25b128edaaea1c3952f2be533f Mon Sep 17 00:00:00 2001
From: suyuan <175338101@qq.com>
Date: Wed, 13 Sep 2023 20:05:27 +0800
Subject: [PATCH] fix netifd

---
 netifd/Makefile                               |  49 ++++++
 netifd/files/etc/hotplug.d/iface/00-netstate  |   6 +
 netifd/files/etc/init.d/network               | 144 ++++++++++++++++++
 netifd/files/etc/init.d/packet_steering       |  18 +++
 .../etc/uci-defaults/14_migrate-dhcp-release  |  23 +++
 netifd/files/etc/udhcpc.user                  |   1 +
 netifd/files/lib/netifd/dhcp.script           | 120 +++++++++++++++
 netifd/files/lib/netifd/proto/dhcp.sh         |  89 +++++++++++
 netifd/files/lib/network/config.sh            |  76 +++++++++
 netifd/files/sbin/devstatus                   |  12 ++
 netifd/files/sbin/ifdown                      |   1 +
 netifd/files/sbin/ifstatus                    |  13 ++
 netifd/files/sbin/ifup                        |  77 ++++++++++
 .../usr/libexec/network/packet-steering.sh    |  70 +++++++++
 netifd/files/usr/share/udhcpc/default.script  |  57 +++++++
 15 files changed, 756 insertions(+)
 create mode 100755 netifd/Makefile
 create mode 100755 netifd/files/etc/hotplug.d/iface/00-netstate
 create mode 100755 netifd/files/etc/init.d/network
 create mode 100755 netifd/files/etc/init.d/packet_steering
 create mode 100755 netifd/files/etc/uci-defaults/14_migrate-dhcp-release
 create mode 100755 netifd/files/etc/udhcpc.user
 create mode 100755 netifd/files/lib/netifd/dhcp.script
 create mode 100755 netifd/files/lib/netifd/proto/dhcp.sh
 create mode 100755 netifd/files/lib/network/config.sh
 create mode 100755 netifd/files/sbin/devstatus
 create mode 120000 netifd/files/sbin/ifdown
 create mode 100755 netifd/files/sbin/ifstatus
 create mode 100755 netifd/files/sbin/ifup
 create mode 100755 netifd/files/usr/libexec/network/packet-steering.sh
 create mode 100755 netifd/files/usr/share/udhcpc/default.script

diff --git a/netifd/Makefile b/netifd/Makefile
new file mode 100755
index 000000000..808432756
--- /dev/null
+++ b/netifd/Makefile
@@ -0,0 +1,49 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=netifd
+PKG_RELEASE:=3
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL=$(PROJECT_GIT)/project/netifd.git
+PKG_SOURCE_DATE:=2023-08-31
+PKG_SOURCE_VERSION:=1a07f1dff32b3af49e39533e33e8964b59535662
+PKG_MIRROR_HASH:=dc621dd04c3c9631002f929cf10a4620f57af8b0baf614c590bda17957fa6201
+PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
+
+PKG_LICENSE:=GPL-2.0
+PKG_LICENSE_FILES:=
+
+PKG_BUILD_FLAGS:=lto
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+define Package/netifd
+  SECTION:=base
+  CATEGORY:=Base system
+  DEPENDS:=+libuci +libnl-tiny +libubus +ubus +ubusd +jshn +libubox
+  TITLE:=OpenWrt Network Interface Configuration Daemon
+endef
+
+define Package/netifd/conffiles
+/etc/udhcpc.user
+/etc/udhcpc.user.d/
+endef
+
+TARGET_CFLAGS += \
+	-I$(STAGING_DIR)/usr/include/libnl-tiny \
+	-I$(STAGING_DIR)/usr/include
+
+CMAKE_OPTIONS += \
+	-DLIBNL_LIBS=-lnl-tiny \
+	-DDEBUG=1
+
+define Package/netifd/install
+	$(INSTALL_DIR) $(1)/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/netifd $(1)/sbin/
+	$(CP) ./files/* $(1)/
+	$(INSTALL_DIR) $(1)/etc/udhcpc.user.d/
+	$(CP) $(PKG_BUILD_DIR)/scripts/* $(1)/lib/netifd/
+endef
+
+$(eval $(call BuildPackage,netifd))
diff --git a/netifd/files/etc/hotplug.d/iface/00-netstate b/netifd/files/etc/hotplug.d/iface/00-netstate
new file mode 100755
index 000000000..71ccb0191
--- /dev/null
+++ b/netifd/files/etc/hotplug.d/iface/00-netstate
@@ -0,0 +1,6 @@
+[ ifup = "$ACTION" ] && {
+	uci_toggle_state network "$INTERFACE" up 1
+	[ -n "$DEVICE" ] && {
+		uci_toggle_state network "$INTERFACE" ifname "$DEVICE"
+	}
+}
diff --git a/netifd/files/etc/init.d/network b/netifd/files/etc/init.d/network
new file mode 100755
index 000000000..dc208c4ce
--- /dev/null
+++ b/netifd/files/etc/init.d/network
@@ -0,0 +1,144 @@
+#!/bin/sh /etc/rc.common
+
+START=20
+STOP=90
+
+USE_PROCD=1
+
+init_switch() {
+	setup_switch() { return 0; }
+
+	include /lib/network
+	setup_switch
+}
+
+start_service() {
+	init_switch
+
+	procd_open_instance
+	procd_set_param command /sbin/netifd
+	procd_set_param respawn
+	procd_set_param watch network.interface
+	[ -e /proc/sys/kernel/core_pattern ] && {
+		procd_set_param limits core="unlimited"
+	}
+	procd_close_instance
+}
+
+reload_service() {
+	local rv=0
+
+	init_switch
+	ubus call network reload || rv=1
+	/sbin/wifi reload_legacy
+	return $rv
+}
+
+stop_service() {
+	/sbin/wifi down
+	ifdown -a
+	sleep 1
+}
+
+validate_atm_bridge_section()
+{
+	uci_validate_section network "atm-bridge" "${1}" \
+		'unit:uinteger:0' \
+		'vci:range(32, 65535):35' \
+		'vpi:range(0, 255):8' \
+		'atmdev:uinteger:0' \
+		'encaps:or("llc", "vc"):llc' \
+		'payload:or("bridged", "routed"):bridged'
+}
+
+validate_route_section()
+{
+	uci_validate_section network route "${1}" \
+		'interface:string' \
+		'target:cidr4' \
+		'netmask:netmask4' \
+		'gateway:ip4addr' \
+		'metric:uinteger' \
+		'mtu:uinteger' \
+		'table:or(range(0,65535),string)'
+}
+
+validate_route6_section()
+{
+	uci_validate_section network route6 "${1}" \
+		'interface:string' \
+		'target:cidr6' \
+		'gateway:ip6addr' \
+		'metric:uinteger' \
+		'mtu:uinteger' \
+		'table:or(range(0,65535),string)'
+}
+
+validate_rule_section()
+{
+	uci_validate_section network rule "${1}" \
+		'in:string' \
+		'out:string' \
+		'src:cidr4' \
+		'dest:cidr4' \
+		'tos:range(0,31)' \
+		'mark:string' \
+		'invert:bool' \
+		'lookup:or(range(0,65535),string)' \
+		'goto:range(0,65535)' \
+		'action:or("prohibit", "unreachable", "blackhole", "throw")'
+}
+
+validate_rule6_section()
+{
+	uci_validate_section network rule6 "${1}" \
+		'in:string' \
+		'out:string' \
+		'src:cidr6' \
+		'dest:cidr6' \
+		'tos:range(0,31)' \
+		'mark:string' \
+		'invert:bool' \
+		'lookup:or(range(0,65535),string)' \
+		'goto:range(0,65535)' \
+		'action:or("prohibit", "unreachable", "blackhole", "throw")'
+}
+
+validate_switch_section()
+{
+	uci_validate_section network switch "${1}" \
+		'name:string' \
+		'enable:bool' \
+		'enable_vlan:bool' \
+		'reset:bool' \
+		'ar8xxx_mib_poll_interval:uinteger' \
+		'ar8xxx_mib_type:range(0,1)'
+}
+
+validate_switch_vlan()
+{
+	uci_validate_section network switch_vlan "${1}" \
+		'device:string' \
+		'vlan:uinteger' \
+		'ports:list(ports)'
+}
+
+service_triggers()
+{
+	procd_add_reload_trigger network wireless
+
+	procd_open_validate
+	validate_atm_bridge_section
+	validate_route_section
+	[ -e /proc/sys/net/ipv6 ] && validate_route6_section
+	validate_rule_section
+	[ -e /proc/sys/net/ipv6 ] && validate_rule6_section
+	validate_switch_section
+	validate_switch_vlan
+	procd_close_validate
+}
+
+shutdown() {
+	ifdown -a
+	sleep 1
+}
diff --git a/netifd/files/etc/init.d/packet_steering b/netifd/files/etc/init.d/packet_steering
new file mode 100755
index 000000000..9d8f791e2
--- /dev/null
+++ b/netifd/files/etc/init.d/packet_steering
@@ -0,0 +1,18 @@
+#!/bin/sh /etc/rc.common
+
+START=25
+USE_PROCD=1
+
+start_service() {
+	reload_service
+}
+
+service_triggers() {
+	procd_add_reload_trigger "network"
+	procd_add_reload_trigger "firewall"
+	procd_add_raw_trigger "interface.*" 1000 /etc/init.d/packet_steering reload
+}
+
+reload_service() {
+	/usr/libexec/network/packet-steering.sh
+}
diff --git a/netifd/files/etc/uci-defaults/14_migrate-dhcp-release b/netifd/files/etc/uci-defaults/14_migrate-dhcp-release
new file mode 100755
index 000000000..f1b384eec
--- /dev/null
+++ b/netifd/files/etc/uci-defaults/14_migrate-dhcp-release
@@ -0,0 +1,23 @@
+. /lib/functions.sh
+
+migrate_release() {
+	local config="$1"
+	local proto
+	local release
+
+	config_get proto "$config" proto
+	config_get release "$config" release
+
+	[ "$proto" = "dhcp" ] && [ -n "$release" ] && {
+		norelease="$((!$release))"
+		uci_set network "$config" norelease "$norelease"
+		uci_remove network "$config" release
+	}
+
+}
+
+config_load network
+config_foreach migrate_release interface
+uci commit network
+
+exit 0
diff --git a/netifd/files/etc/udhcpc.user b/netifd/files/etc/udhcpc.user
new file mode 100755
index 000000000..78e2ba5f1
--- /dev/null
+++ b/netifd/files/etc/udhcpc.user
@@ -0,0 +1 @@
+# This script is sourced by udhcpc's dhcp.script at every DHCP event.
diff --git a/netifd/files/lib/netifd/dhcp.script b/netifd/files/lib/netifd/dhcp.script
new file mode 100755
index 000000000..6fcf139be
--- /dev/null
+++ b/netifd/files/lib/netifd/dhcp.script
@@ -0,0 +1,120 @@
+#!/bin/sh
+[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
+
+. /lib/functions.sh
+. /lib/netifd/netifd-proto.sh
+
+set_classless_routes() {
+	local max=128
+	while [ -n "$1" -a -n "$2" -a $max -gt 0 ]; do
+		proto_add_ipv4_route "${1%%/*}" "${1##*/}" "$2" "$ip"
+		max=$(($max-1))
+		shift 2
+	done
+}
+
+setup_interface () {
+	proto_init_update "*" 1
+	proto_add_ipv4_address "$ip" "${subnet:-255.255.255.0}"
+	# TODO: apply $broadcast
+
+	local ip_net
+	eval "$(ipcalc.sh "$ip/$mask")";ip_net="$NETWORK"
+
+	local i
+	for i in $router; do
+		local gw_net
+		eval "$(ipcalc.sh "$i/$mask")";gw_net="$NETWORK"
+
+		[ "$ip_net" != "$gw_net" ] && proto_add_ipv4_route "$i" 32 "" "$ip"
+		proto_add_ipv4_route 0.0.0.0 0 "$i" "$ip"
+
+		local r
+		for r in $CUSTOMROUTES; do
+			proto_add_ipv4_route "${r%%/*}" "${r##*/}" "$i" "$ip"
+		done
+	done
+
+	# CIDR STATIC ROUTES (rfc3442)
+	[ -n "$staticroutes" ] && set_classless_routes $staticroutes
+	[ -n "$msstaticroutes" ] && set_classless_routes $msstaticroutes
+
+	for i in $dns; do
+		proto_add_dns_server "$i"
+	done
+	for i in $domain; do
+		proto_add_dns_search "$i"
+	done
+
+	# TODO: Deprecate timesvr in favor of timesrv
+	if [ -n "$timesvr" -a -z "$timesrv" ]; then
+		timesrv="$timesvr"
+		echo "Environment variable 'timesvr' will be deprecated; use 'timesrv' instead."
+	fi
+
+	proto_add_data
+	[ -n "$ZONE" ]     && json_add_string zone "$ZONE"
+	[ -n "$ntpsrv" ]   && json_add_string ntpserver "$ntpsrv"
+	[ -n "$timesrv" ]  && json_add_string timeserver "$timesrv"
+	[ -n "$hostname" ] && json_add_string hostname "$hostname"
+	[ -n "$message" ]  && json_add_string message "$message"
+	[ -n "$timezone" ] && json_add_int timezone "$timezone"
+	[ -n "$lease" ]    && json_add_int leasetime "$lease"
+	[ -n "$serverid" ] && json_add_string dhcpserver "$serverid"
+	proto_close_data
+
+	proto_send_update "$INTERFACE"
+
+
+	if [ "$IFACE6RD" != 0 -a -n "$ip6rd" ]; then
+		local v4mask="${ip6rd%% *}"
+		ip6rd="${ip6rd#* }"
+		local ip6rdprefixlen="${ip6rd%% *}"
+		ip6rd="${ip6rd#* }"
+		local ip6rdprefix="${ip6rd%% *}"
+		ip6rd="${ip6rd#* }"
+		local ip6rdbr="${ip6rd%% *}"
+
+		[ -n "$ZONE" ] || ZONE=$(fw3 -q network $INTERFACE 2>/dev/null)
+		[ -z "$IFACE6RD" -o "$IFACE6RD" = 1 ] && IFACE6RD=${INTERFACE}_6
+
+		json_init
+		json_add_string name "$IFACE6RD"
+		json_add_string ifname "@$INTERFACE"
+		json_add_string proto "6rd"
+		json_add_string peeraddr "$ip6rdbr"
+		json_add_int ip4prefixlen "$v4mask"
+		json_add_string ip6prefix "$ip6rdprefix"
+		json_add_int ip6prefixlen "$ip6rdprefixlen"
+		json_add_string tunlink "$INTERFACE"
+		[ -n "$IFACE6RD_DELEGATE" ] && json_add_boolean delegate "$IFACE6RD_DELEGATE"
+		[ -n "$ZONE6RD" ] || ZONE6RD=$ZONE
+		[ -n "$ZONE6RD" ] && json_add_string zone "$ZONE6RD"
+		[ -n "$MTU6RD" ] && json_add_string mtu "$MTU6RD"
+		json_close_object
+
+		ubus call network add_dynamic "$(json_dump)"
+	fi
+}
+
+deconfig_interface() {
+	proto_init_update "*" 0
+	proto_send_update "$INTERFACE"
+}
+
+case "$1" in
+	deconfig)
+		deconfig_interface
+	;;
+	renew|bound)
+		setup_interface
+	;;
+esac
+
+# user rules
+[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user "$@"
+for f in /etc/udhcpc.user.d/*; do
+	[ -f "$f" ] && (. "$f" "$@")
+done
+
+exit 0
diff --git a/netifd/files/lib/netifd/proto/dhcp.sh b/netifd/files/lib/netifd/proto/dhcp.sh
new file mode 100755
index 000000000..0771d8a05
--- /dev/null
+++ b/netifd/files/lib/netifd/proto/dhcp.sh
@@ -0,0 +1,89 @@
+#!/bin/sh
+
+[ -x /sbin/udhcpc ] || exit 0
+
+. /lib/functions.sh
+. ../netifd-proto.sh
+init_proto "$@"
+
+proto_dhcp_init_config() {
+	renew_handler=1
+
+	proto_config_add_string 'ipaddr:ipaddr'
+	proto_config_add_string 'hostname:hostname'
+	proto_config_add_string clientid
+	proto_config_add_string vendorid
+	proto_config_add_boolean 'broadcast:bool'
+	proto_config_add_boolean 'norelease:bool'
+	proto_config_add_string 'reqopts:list(string)'
+	proto_config_add_boolean 'defaultreqopts:bool'
+	proto_config_add_string iface6rd
+	proto_config_add_array 'sendopts:list(string)'
+	proto_config_add_boolean delegate
+	proto_config_add_string zone6rd
+	proto_config_add_string zone
+	proto_config_add_string mtu6rd
+	proto_config_add_string customroutes
+	proto_config_add_boolean classlessroute
+}
+
+proto_dhcp_add_sendopts() {
+	[ -n "$1" ] && append "$3" "-x $1"
+}
+
+proto_dhcp_setup() {
+	local config="$1"
+	local iface="$2"
+
+	local ipaddr hostname clientid vendorid broadcast norelease reqopts defaultreqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes classlessroute defaultroute
+	json_get_vars ipaddr hostname clientid vendorid broadcast norelease reqopts defaultreqopts iface6rd delegate zone6rd zone mtu6rd customroutes classlessroute defaultroute
+
+	local opt dhcpopts
+	for opt in $reqopts; do
+		append dhcpopts "-O $opt"
+	done
+
+	json_for_each_item proto_dhcp_add_sendopts sendopts dhcpopts
+
+	[ -z "$hostname" ] && hostname="$(cat /proc/sys/kernel/hostname)"
+	[ "$hostname" = "*" ] && hostname=
+
+	[ "$defaultreqopts" = 0 ] && defaultreqopts="-o" || defaultreqopts=
+	[ "$broadcast" = 1 ] && broadcast="-B" || broadcast=
+	[ "$norelease" = 1 ] && norelease="" || norelease="-R"
+	[ -n "$clientid" ] && clientid="-x 0x3d:${clientid//:/}" || clientid="-C"
+	[ -n "$iface6rd" ] && proto_export "IFACE6RD=$iface6rd"
+	[ "$iface6rd" != 0 -a -f /lib/netifd/proto/6rd.sh ] && append dhcpopts "-O 212"
+	[ -n "$zone6rd" ] && proto_export "ZONE6RD=$zone6rd"
+	[ -n "$zone" ] && proto_export "ZONE=$zone"
+	[ -n "$mtu6rd" ] && proto_export "MTU6RD=$mtu6rd"
+	[ -n "$customroutes" ] && proto_export "CUSTOMROUTES=$customroutes"
+	[ -n "$defaultroute" ] && proto_export "DEFAULTROUTE=$defaultroute"
+	[ "$delegate" = "0" ] && proto_export "IFACE6RD_DELEGATE=0"
+	# Request classless route option (see RFC 3442) by default
+	[ "$classlessroute" = "0" ] || append dhcpopts "-O 121"
+
+	proto_export "INTERFACE=$config"
+	proto_run_command "$config" udhcpc \
+		-p /var/run/udhcpc-$iface.pid \
+		-s /lib/netifd/dhcp.script \
+		-f -t 0 -i "$iface" \
+		${ipaddr:+-r ${ipaddr/\/*/}} \
+		${hostname:+-x "hostname:$hostname"} \
+		${vendorid:+-V "$vendorid"} \
+		$clientid $defaultreqopts $broadcast $norelease $dhcpopts
+}
+
+proto_dhcp_renew() {
+	local interface="$1"
+	# SIGUSR1 forces udhcpc to renew its lease
+	local sigusr1="$(kill -l SIGUSR1)"
+	[ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
+}
+
+proto_dhcp_teardown() {
+	local interface="$1"
+	proto_kill_command "$interface"
+}
+
+add_protocol dhcp
diff --git a/netifd/files/lib/network/config.sh b/netifd/files/lib/network/config.sh
new file mode 100755
index 000000000..4cd28e4ce
--- /dev/null
+++ b/netifd/files/lib/network/config.sh
@@ -0,0 +1,76 @@
+#!/bin/sh
+# Copyright (C) 2011 OpenWrt.org
+
+. /usr/share/libubox/jshn.sh
+
+find_config() {
+	local device="$1"
+	local ifdev ifl3dev ifobj
+	for ifobj in $(ubus list network.interface.\*); do
+		interface="${ifobj##network.interface.}"
+		(
+			json_load "$(ifstatus $interface)"
+			json_get_var ifdev device
+			json_get_var ifl3dev l3_device
+			if [ "$device" = "$ifdev" ] || [ "$device" = "$ifl3dev" ]; then
+				echo "$interface"
+				exit 0
+			else
+				exit 1
+			fi
+		) && return
+	done
+}
+
+unbridge() {
+	return
+}
+
+ubus_call() {
+	json_init
+	local _data="$(ubus -S call "$1" "$2")"
+	[ -z "$_data" ] && return 1
+	json_load "$_data"
+	return 0
+}
+
+
+fixup_interface() {
+	local config="$1"
+	local ifname type device l3dev
+
+	config_get type "$config" type
+	config_get ifname "$config" ifname
+	[ "bridge" = "$type" ] && ifname="br-$config"
+	ubus_call "network.interface.$config" status || return 0
+	json_get_var l3dev l3_device
+	[ -n "$l3dev" ] && ifname="$l3dev"
+	json_init
+	config_set "$config" ifname "$ifname"
+}
+
+scan_interfaces() {
+	config_load network
+	config_foreach fixup_interface interface
+}
+
+prepare_interface_bridge() {
+	local config="$1"
+
+	[ -n "$config" ] || return 0
+	ubus call network.interface."$config" prepare
+}
+
+setup_interface() {
+	local iface="$1"
+	local config="$2"
+
+	[ -n "$config" ] || return 0
+	ubus call network.interface."$config" add_device "{ \"name\": \"$iface\" }"
+}
+
+do_sysctl() {
+	[ -n "$2" ] && \
+		sysctl -n -e -w "$1=$2" >/dev/null || \
+		sysctl -n -e "$1"
+}
diff --git a/netifd/files/sbin/devstatus b/netifd/files/sbin/devstatus
new file mode 100755
index 000000000..3c35b26a4
--- /dev/null
+++ b/netifd/files/sbin/devstatus
@@ -0,0 +1,12 @@
+#!/bin/sh
+. /usr/share/libubox/jshn.sh
+DEVICE="$1"
+
+[ -n "$DEVICE" ] || {
+	echo "Usage: $0 <device>"
+	exit 1
+}
+
+json_init
+json_add_string name "$DEVICE"
+ubus call network.device status "$(json_dump)"
diff --git a/netifd/files/sbin/ifdown b/netifd/files/sbin/ifdown
new file mode 120000
index 000000000..a0e5c176a
--- /dev/null
+++ b/netifd/files/sbin/ifdown
@@ -0,0 +1 @@
+ifup
\ No newline at end of file
diff --git a/netifd/files/sbin/ifstatus b/netifd/files/sbin/ifstatus
new file mode 100755
index 000000000..8a951e6e1
--- /dev/null
+++ b/netifd/files/sbin/ifstatus
@@ -0,0 +1,13 @@
+#!/bin/sh
+INTERFACE="$1"
+
+[ -n "$INTERFACE" ] || {
+	echo "Usage: $0 <interface>"
+	exit 1
+}
+
+ubus -S list "network.interface.$INTERFACE" >/dev/null || {
+	echo "Interface $INTERFACE not found"
+	exit 1
+}
+ubus call network.interface status "{ \"interface\" : \"$INTERFACE\" }"
diff --git a/netifd/files/sbin/ifup b/netifd/files/sbin/ifup
new file mode 100755
index 000000000..15be535bb
--- /dev/null
+++ b/netifd/files/sbin/ifup
@@ -0,0 +1,77 @@
+#!/bin/sh
+
+ifup_all=
+setup_wifi=
+
+if_call() {
+	local interface="$1"
+	for mode in $modes; do
+		ubus call network.interface $mode "{ \"interface\" : \"$interface\" }"
+	done
+}
+
+case "$0" in
+	*ifdown) modes=down;;
+	*ifup)
+		modes="down up"
+		setup_wifi=1
+	;;
+	*) echo "Invalid command: $0";;
+esac
+
+while :; do
+	case "$1" in
+		-a)
+			ifup_all=1
+			shift
+		;;
+		-w)
+			setup_wifi=
+			shift
+		;;
+		*)
+			break
+		;;
+	esac
+done
+
+[ "$modes" = "down up" ] && ubus call network reload
+if [ -n "$ifup_all" ]; then
+	for interface in $(ubus -S list 'network.interface.*'); do
+		if_call "${interface##network.interface.}"
+	done
+	[ -n "$setup_wifi" ] && /sbin/wifi up
+	exit
+else
+	ubus -S list "network.interface.$1" > /dev/null || {
+		echo "Interface $1 not found"
+		exit
+	}
+	if_call "$1"
+fi
+
+if [ -n "$setup_wifi" ] && grep -sq config /etc/config/wireless; then
+	. /lib/functions.sh
+
+	find_related_radios() {
+		local wdev wnet
+		config_get wdev "$1" device
+		config_get wnet "$1" network
+
+		if [ -n "$wdev" ]; then
+			for wnet in $wnet; do
+				if [ "$wnet" = "$network" ]; then
+					append radio_devs "$wdev" "$N"
+				fi
+			done
+		fi
+	}
+
+	network="$1"
+	config_load wireless
+	config_foreach find_related_radios wifi-iface
+
+	for dev in $(echo "$radio_devs" | sort -u); do
+		/sbin/wifi up "$dev"
+	done
+fi
diff --git a/netifd/files/usr/libexec/network/packet-steering.sh b/netifd/files/usr/libexec/network/packet-steering.sh
new file mode 100755
index 000000000..799c08080
--- /dev/null
+++ b/netifd/files/usr/libexec/network/packet-steering.sh
@@ -0,0 +1,70 @@
+#!/bin/sh
+NPROCS="$(grep -c "^processor.*:" /proc/cpuinfo)"
+[ "$NPROCS" -gt 1 ] || exit
+
+PROC_MASK="$(( (1 << $NPROCS) - 1 ))"
+
+find_irq_cpu() {
+	local dev="$1"
+	local match="$(grep -m 1 "$dev\$" /proc/interrupts)"
+	local cpu=0
+
+	[ -n "$match" ] && {
+		set -- $match
+		shift
+		for cur in $(seq 1 $NPROCS); do
+			[ "$1" -gt 0 ] && {
+				cpu=$(($cur - 1))
+				break
+			}
+			shift
+		done
+	}
+
+	echo "$cpu"
+}
+
+set_hex_val() {
+	local file="$1"
+	local val="$2"
+	val="$(printf %x "$val")"
+	[ -n "$DEBUG" ] && echo "$file = $val"
+	echo "$val" > "$file"
+}
+
+packet_steering="$(uci get "network.@globals[0].packet_steering")"
+[ "$packet_steering" != 1 ] && exit 0
+
+exec 512>/var/lock/smp_tune.lock
+flock 512 || exit 1
+
+[ -e "/usr/libexec/platform/packet-steering.sh" ] && {
+	/usr/libexec/platform/packet-steering.sh
+	exit 0
+}
+
+for dev in /sys/class/net/*; do
+	[ -d "$dev" ] || continue
+
+	# ignore virtual interfaces
+	[ -n "$(ls "${dev}/" | grep '^lower_')" ] && continue
+	[ -d "${dev}/device" ] || continue
+
+	device="$(readlink "${dev}/device")"
+	device="$(basename "$device")"
+	irq_cpu="$(find_irq_cpu "$device")"
+	irq_cpu_mask="$((1 << $irq_cpu))"
+
+	for q in ${dev}/queues/tx-*; do
+		set_hex_val "$q/xps_cpus" "$PROC_MASK"
+	done
+
+	# ignore dsa slave ports for RPS
+	subsys="$(readlink "${dev}/device/subsystem")"
+	subsys="$(basename "$subsys")"
+	[ "$subsys" = "mdio_bus" ] && continue
+
+	for q in ${dev}/queues/rx-*; do
+		set_hex_val "$q/rps_cpus" "$PROC_MASK"
+	done
+done
diff --git a/netifd/files/usr/share/udhcpc/default.script b/netifd/files/usr/share/udhcpc/default.script
new file mode 100755
index 000000000..0a9eb0180
--- /dev/null
+++ b/netifd/files/usr/share/udhcpc/default.script
@@ -0,0 +1,57 @@
+#!/bin/sh
+[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
+
+set_classless_routes() {
+	local max=128
+	local type
+	while [ -n "$1" -a -n "$2" -a $max -gt 0 ]; do
+		[ ${1##*/} -eq 32 ] && type=host || type=net
+		echo "udhcpc: adding route for $type $1 via $2"
+		route add -$type "$1" gw "$2" dev "$interface"
+		max=$(($max-1))
+		shift 2
+	done
+}
+
+setup_interface() {
+	echo "udhcpc: ip addr add $ip/${subnet:-255.255.255.0} broadcast ${broadcast:-+} dev $interface"
+	ip addr add $ip/${subnet:-255.255.255.0} broadcast ${broadcast:-+} dev $interface
+
+	[ -n "$router" ] && [ "$router" != "0.0.0.0" ] && [ "$router" != "255.255.255.255" ] && {
+		echo "udhcpc: setting default routers: $router"
+
+		local valid_gw=""
+		for i in $router ; do
+			route add default gw $i dev $interface
+			valid_gw="${valid_gw:+$valid_gw|}$i"
+		done
+		
+		eval $(route -n | awk '
+			/^0.0.0.0\W{9}('$valid_gw')\W/ {next}
+			/^0.0.0.0/ {print "route del -net "$1" gw "$2";"}
+		')
+	}
+
+	# CIDR STATIC ROUTES (rfc3442)
+	[ -n "$staticroutes" ] && set_classless_routes $staticroutes
+	[ -n "$msstaticroutes" ] && set_classless_routes $msstaticroutes
+}
+
+
+applied=
+case "$1" in
+	deconfig)
+		ip -4 addr flush dev "$interface"
+	;;
+	renew)
+		setup_interface update
+	;;
+	bound)
+		setup_interface ifup
+	;;
+esac
+
+# user rules
+[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
+
+exit 0