trafficshaper: new package
trafficshaper create QoS rules to limit (or reserve) traffic used by classes of clients. Uplink and downlink can be controled (or not controlled) independently. Client classes are defined by its network addresses (IPv4 or IPv6). Each client class can define absolute or relative (to wan) bandwith, and also the use (or not) of spare wan bandwidth when avaiable. Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
This commit is contained in:
Luiz Angelo Daros de Luca
Paul Spooren
parent
05cb8878f5
commit
a99b9f128d
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@ -0,0 +1,50 @@
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#
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# Copyright (C) 2018 Luiz Angelo Daros de Luca
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#
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# This is free software, licensed under the GNU General Public License v2.
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#
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include $(TOPDIR)/rules.mk
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PKG_NAME:=trafficshaper
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PKG_VERSION:=1.0.0
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PKG_RELEASE:=1
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PKG_MAINTAINER:=Luiz Angelo Daros de Luca <luizluca@gmail.com>
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PKG_LICENSE:=GPLv2
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PKG_ARCH:=all
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PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
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include $(INCLUDE_DIR)/package.mk
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include $(INCLUDE_DIR)/package.mk
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define Package/trafficshaper
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SECTION:=net
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CATEGORY:=Network
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DEPENDS:=+tc +kmod-sched-core +kmod-sched-connmark +kmod-ifb +iptables +kmod-sched-cake +iptables-mod-conntrack-extra
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TITLE:=WAN traffic shaper based on LAN addresses
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MAINTAINER:=Luiz Angelo Daros de Luca <luizluca@gmail.com>
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PKGARCH:=all
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endef
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define Package/trafficshaper/description
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Setup QoS rules to limit (or reserve) traffic used by classes of clients.
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Uplink and downlink can be controled (or not controlled) independently.
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Client classes are defined by its network addresses (IPv4 or IPv6). Each
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client class can define absolute or relative (to wan) bandwith, and also
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the use (or not) of spare wan bandwidth when avaiable.
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endef
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define Package/trafficshaper/conffiles
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/etc/config/trafficshaper
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endef
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define Build/Compile
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endef
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define Package/trafficshaper/install
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$(CP) ./files/* $(1)
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endef
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$(eval $(call BuildPackage,trafficshaper))
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@ -0,0 +1,42 @@
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package trafficshaper
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config globals 'globals'
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option mark_mask '0xFF'
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config wan 'wan'
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option downlink '20000'
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option uplink '20000'
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config wan 'wanb'
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option downlink '15000'
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option uplink '5000'
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config class 'corp'
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list network '192.168.1.0/24'
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list network 'fdc8:1234:1234:1::/64'
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option reserved_downlink '50%'
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option reserved_uplink '35%'
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option allowed_downlink '100%'
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option allowed_uplink '100%'
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config class 'vpn'
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list network '192.168.2.0/24'
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list network 'fdc8:1234:1234:2::/64'
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option reserved_downlink '25%'
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option reserved_uplink '50%'
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option allowed_downlink '100%'
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option allowed_uplink '100%'
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config class 'guest'
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list network '192.168.3.0/24'
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list network 'fdc8:1234:1234:3::/64'
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option reserved_downlink '25%'
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option reserved_uplink '15%'
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option allowed_downlink '25%'
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option allowed_uplink '15%'
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config class 'default'
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option reserved_downlink '1000'
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option reserved_uplink '1000'
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option allowed_downlink '100%'
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option allowed_uplink '100%'
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@ -0,0 +1,477 @@
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#!/bin/sh /etc/rc.common
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# Internal uci firewall chains are flushed and recreated on reload, so
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# put custom rules into the root chains e.g. INPUT or FORWARD or into the
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# special user chains, e.g. input_wan_rule or postrouting_lan_rule.
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START=25
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USE_PROCD=1
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echo_err() {
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echo "$@" >&2
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}
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msg() {
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local level=$1; shift
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echo_err "$APPNAME[$level]: $*"
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}
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LOGLEVEL=${LOGLEVEL:-2}
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die() {
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local err=$1; shift
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e "$*"
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exit $err
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}
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APPNAME="trafficshaper"
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IPT_CHAIN=$APPNAME
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debug_exec(){
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local err
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d "exec: $*"
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if "$@"; then
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return 0
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else
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err="$?"
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fi
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e "exec[err=$err]: $*"
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return "$err"
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}
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IP="debug_exec ip"
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TC="debug_exec tc"
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IP4T="debug_exec iptables -w 5"
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IP6T="debug_exec ip6tables -w 5"
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#QDISC="cake autorate_ingress internet ethernet diffserv4 triple-isolate"
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QDISC="cake"
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REQ_MODULES="sch_htb sch_cake act_connmark act_mirred em_u32"
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REQ_CMDS="ip tc iptables"
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preinit(){
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[ "$LOGLEVEL" -ge 1 ] && e() { msg ERROR "$@"; } || e() { true; }
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[ "$LOGLEVEL" -ge 2 ] && v() { msg INFO "$@"; } || v() { true; }
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[ "$LOGLEVEL" -ge 3 ] && d() { msg DEBUG "$@"; } || d() { true; }
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[ "$LOGLEVEL" -ge 4 ] && set -x
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set -e
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}
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requires() {
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for module in $REQ_MODULES; do
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[ -d /sys/module/$module ] || insert_modules "$module" ||
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die 2 "cannot load $module. Please install kmod-$module"
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done
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for cmd in $REQ_CMDS; do
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which $cmd &>/dev/null ||
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die 2 "cannot find command $cmd. Please install $cmd"
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done
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if ! which ip6tables &>/dev/null; then
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v "Disabling IPv6 as ip6tables was not found"
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IP6T=true
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fi
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. /lib/functions/network.sh
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config_load $APPNAME
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}
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do_stop() {
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local only_int=$1
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preinit
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requires
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v "Stopping $APPNAME${only_int:+ for interface $only_int}"
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if [ -z "$only_int" ]; then
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d "Cleaning iptables"
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# Cleaning iptables
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for IPT in "$IP4T" "$IP6T"; do
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$IPT -t mangle -D FORWARD -j $IPT_CHAIN &>/dev/null || :
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$IPT -t mangle -F $IPT_CHAIN &>/dev/null || :
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$IPT -t mangle -X $IPT_CHAIN &>/dev/null || :
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$IPT -t mangle -F $IPT_CHAIN-classify &>/dev/null || :
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$IPT -t mangle -X $IPT_CHAIN-classify &>/dev/null || :
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done
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fi
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d "Cleaning tc"
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local dev_done int dev ifb interfaces
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if [ "$only_int" ]; then
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config_get type $only_int TYPE
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if [ "$type" != "wan" ]; then
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d "interface $only_int not found in trafficshaper config. Ignoring"
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return 0
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fi
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interfaces="$only_int"
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else
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interfaces="$(config_foreach echo wan)"
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fi
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for int in $interfaces; do
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d "Cleaning tc for interface $int"
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network_get_physdev dev "$int" ||
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die 1 "failed to get physical dev of interface $int"
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if echo "$dev_done" | grep -x -F -q "$dev"; then
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continue
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fi
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ifb="ifb_$dev"
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if [ ${#ifb} -gt 15 ]; then
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die 1 "ifb name too long: ${ifb}"
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fi
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$TC qdisc del dev ${ifb} root 2> /dev/null || :
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$TC qdisc del dev ${dev} root 2> /dev/null || :
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$TC qdisc del dev ${dev} ingress 2> /dev/null || :
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d "Removing ${ifb}..."
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$IP link set dev ${ifb} down 2>/dev/null || :
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$IP link delete dev ${ifb} 2>/dev/null || :
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intdev_done="$(echo "$dev_done"; echo -n $dev)"
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done
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}
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calc_bw() {
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local value=$1 reference=$2
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case "${value}" in
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*%) echo "$((${value%\%} * reference / 100 ))";;
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*) echo ${value};;
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esac
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}
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mask_range() {
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local mask=$(($1)) n=0 fsb
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if [ $mask -le 0 ]; then
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e "mask '$1' must be greater than 0 (have a sequence of set bit)"
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return 2
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fi
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while [ "$((mask & 0x1))" -eq 0 ]; do
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mask=$((mask >> 1))
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: $((n++))
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done
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fsb="$n"
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while [ "$((mask & 0x1))" -eq 1 ]; do
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mask=$((mask >> 1))
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: $((n++))
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done
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if [ $mask -ne 0 ]; then
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e "mask '$1' must be a continuos sequence of set bit"
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return 2
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fi
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echo $fsb $((n-1))
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return 0
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}
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start_iptables(){
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d "Creating iptables mangle rules"
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config_get mark_mask globals mark_mask 0xFF
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mark_mask=$(printf '0x%X\n' $(($mark_mask)))
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local fsb_lst class_id_max class_id_shift
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fsb_lst=$(mask_range $mark_mask)
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class_id_max=$(((1<<(${fsb_lst#* } - ${fsb_lst% *} +1))+1))
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class_id_shift=$((${fsb_lst% *}))
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d "General iptables rules:"
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for IPT in "$IP4T" "$IP6T"; do
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$IPT -t mangle -N $IPT_CHAIN
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$IPT -t mangle -N $IPT_CHAIN-classify
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$IPT -t mangle -A FORWARD -j $IPT_CHAIN
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$IPT -t mangle -A $IPT_CHAIN -j CONNMARK --restore-mark --nfmask $mark_mask --ctmask $mark_mask \
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-m comment --comment "Get previous class"
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$IPT -t mangle -A $IPT_CHAIN -m mark --mark 0x0/$mark_mask -j $IPT_CHAIN-classify \
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-m comment --comment "If no class, try to classify"
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done
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d "Classes iptables rules:"
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local class_reserved_uplink class_reserved_downlink class_nets i=2 xi default_class_id
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for class in $(config_foreach echo class); do
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config_get class_reserved_uplink $class reserved_uplink
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config_get class_reserved_downlink $class reserved_downlink
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config_get class_nets $class network
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if [ "$class" = default ]; then
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default_class_id=$i
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if [ -z "$class_reserved_uplink" -a -z "$class_reserved_downlink" ] ; then
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die 2 "class default must defined either reserved uplink or downlink!"
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fi
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if [ "$class_nets" ]; then
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die 2 "class default must not have any network defined!"
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fi
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else
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if [ "$i" -ge "$class_id_max" ]; then
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die 1 "Max client classes reached. Please, use less classes or increase option mark_mask '$mark_mask' in globals. Current mask allows only $((class_id_max-2)) classes if default is the last one."
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fi
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fi
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xi=$(printf '0x%X\n' $(((i-1)<<class_id_shift)))
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for class_net in $class_nets; do
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case $class_net in
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*:*) IPT="$IP6T" ;;
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*.*) IPT="$IP4T" ;;
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*) die 2 "Unknown address family of network $class_net in class $class!"
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esac
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if [ "$class_reserved_uplink" ]; then
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$IPT -t mangle -A $IPT_CHAIN-classify -s $class_net -m mark --mark 0x0/$mark_mask -j MARK --set-mark ${xi}/$mark_mask \
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-m comment --comment "$APPNAME-$class up"
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fi
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if [ "$class_reserved_downlink" ]; then
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$IPT -t mangle -A $IPT_CHAIN-classify -d $class_net -m mark --mark 0x0/$mark_mask -j MARK --set-mark ${xi}/$mark_mask \
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-m comment --comment "$APPNAME-$class down"
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fi
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done
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: $((i++))
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done
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if [ -z "$default_class_id" ]; then
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die 2 "No default class defined!"
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fi
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$IP4T -t mangle -A $IPT_CHAIN-classify -j CONNMARK --save-mark --nfmask $mark_mask --ctmask $mark_mask
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$IP6T -t mangle -A $IPT_CHAIN-classify -j CONNMARK --save-mark --nfmask $mark_mask --ctmask $mark_mask
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}
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start_tc_interface() {
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local int=$1; shift
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local dev=$1; shift
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local default_class_id=$1; shift
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config_get mark_mask globals mark_mask 0xFF
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local fsb_lst class_id_max class_id_shift
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fsb_lst=$(mask_range $mark_mask)
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class_id_max=$(((1<<(${fsb_lst#* } - ${fsb_lst% *} +1))))
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class_id_shift=$((${fsb_lst% *}))
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local downlink uplink type
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config_get downlink $int downlink
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config_get uplink $int uplink
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d "Creating tc rules for $int ($dev)"
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local dev_down dev_up
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if [ "$downlink" ]; then
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local ifb="ifb_$dev"
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if [ ${#ifb} -gt 15 ]; then
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die 1 "ifb name too long: ${ifb}"
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fi
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d "Creating ${ifb}..."
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$IP link add name ${ifb} type ifb
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$IP link set dev $ifb up
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d "Redirect ingress $dev to $ifb..."
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$TC qdisc add dev $dev handle ffff: ingress
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$TC filter add dev $dev parent ffff: protocol all u32 match u32 0 0 action connmark action mirred egress redirect dev $ifb
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dev_down=$ifb
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else
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dev_down=
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fi
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if [ "$uplink" ]; then
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dev_up="$dev"
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fi
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# Download/Upload
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if [ "$dev_down" ]; then
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tc qdisc add dev $dev_down root handle 1: htb default "$default_class_id"
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tc class add dev $dev_down parent 1: classid 1:1 htb rate $(calc_bw ${downlink})kbit burst 500k quantum 1500
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fi
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if [ "$dev_up" ]; then
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tc qdisc add dev $dev_up root handle 1: htb default "$default_class_id"
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tc class add dev $dev_up parent 1: classid 1:1 htb rate $(calc_bw ${uplink})kbit burst 500k quantum 1500
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fi
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v "$int($dev):" \
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"${downlink:+downlink of ${downlink}kbit}"\
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"${uplink:+uplink of ${uplink}kbit}"\
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local class class_reserved_downlink class_reserved_uplink class_allowed_downlink class_allowed_uplink class_nets class_net i=2
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for class in $(config_foreach echo class); do
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config_get class_reserved_downlink $class reserved_downlink
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if [ "$class_reserved_downlink" ]; then
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if [ "$dev_down" ]; then
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class_reserved_downlink=$(calc_bw $class_reserved_downlink $downlink)
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config_get class_allowed_downlink $class allowed_downlink "$class_reserved_downlink"
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class_allowed_downlink=$(calc_bw $class_allowed_downlink $downlink)
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else
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e "class $class defines reserved downlink but not wan $int. Downlink shapping will be ignored"
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class_reserved_downlink=
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fi
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elif [ "$dev_down" ]; then
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e "class $class does not define reserved downlink but wan $int does. Downlink shapping will use default class"
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fi
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if [ "$class_allowed_downlink" -lt "$class_reserved_downlink" ]; then
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die 1 "Allowed downlink bandwitdh in class $class must not be smaller than reserved downlink."
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fi
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config_get class_reserved_uplink $class reserved_uplink
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if [ "$class_reserved_uplink" ]; then
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if [ "$dev_up" ]; then
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class_reserved_uplink=$(calc_bw $class_reserved_uplink $uplink)
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config_get class_allowed_uplink $class allowed_uplink "$class_reserved_uplink"
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class_allowed_uplink=$(calc_bw $class_allowed_uplink $uplink)
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else
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e "class $class defines reserved uplink but not wan $int. Downlink shapping will be ignored"
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class_reserved_uplink=
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fi
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elif [ "$dev_up" ]; then
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e "class $class does not define reserved uplink but wan $int does. Downlink shapping will use default class"
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fi
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if [ -n "$class_allowed_uplink" -a -n "$class_reserved_uplink" ] && [ "$class_allowed_uplink" -lt "$class_reserved_uplink" ]; then
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die 1 "Allowed uplink bandwitdh in class $class must not be smaller than reserved uplink."
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fi
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v "$int($dev): $class(class 1:$i) will have" \
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"${class_reserved_downlink:+download of ${class_reserved_downlink}kbit (up to ${class_allowed_downlink}kbit)}"\
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"${class_reserved_uplink:+upload of ${class_reserved_uplink}kbit up (up to ${class_allowed_uplink}kbit)}"
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xi=$(printf '0x%X\n' $(((i-1)<<class_id_shift)))
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if [ "$class_reserved_uplink" ]; then
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$TC class add dev $dev_up parent 1:1 classid 1:$i htb rate ${class_reserved_uplink}kbit ceil ${class_allowed_uplink}kbit quantum 1500 burst 50k
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$TC qdisc add dev $dev_up parent 1:$i handle $i: $QDISC
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if [ "$class" != default ]; then
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$TC filter add dev $dev_up parent 1: protocol ip prio $i handle ${xi}/$mark_mask fw flowid 1:$i
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fi
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fi
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if [ "$class_reserved_downlink" ]; then
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||||
$TC class add dev $dev_down parent 1:1 classid 1:$i htb rate ${class_reserved_downlink}kbit ceil ${class_allowed_downlink}kbit quantum 1500 burst 50k
|
||||
$TC qdisc add dev $dev_down parent 1:$i handle $i: $QDISC
|
||||
if [ "$class" != default ]; then
|
||||
$TC filter add dev $dev_down parent 1: protocol ip prio $i handle ${xi}/$mark_mask fw flowid 1:$i
|
||||
fi
|
||||
fi
|
||||
: $((i++))
|
||||
done
|
||||
}
|
||||
|
||||
start_tc() {
|
||||
d "Creating tc rules"
|
||||
local dev_done int dev interfaces
|
||||
local default_class_id=$1; shift
|
||||
local only_int=$1
|
||||
|
||||
if [ "$only_int" ]; then
|
||||
config_get type $only_int TYPE
|
||||
if [ "$type" != "wan" ]; then
|
||||
d "interface $only_int not found in trafficshaper config. Ignoring"
|
||||
return 0
|
||||
fi
|
||||
interfaces="$only_int"
|
||||
|
||||
else
|
||||
interfaces="$(config_foreach echo wan)"
|
||||
fi
|
||||
|
||||
for int in $interfaces; do
|
||||
network_get_physdev dev "$int" ||
|
||||
die 1 "failed to get physical dev of interface $int"
|
||||
|
||||
if echo "$dev_done" | grep -x -F -q "$dev"; then
|
||||
e "$int uses $dev which was already configured. Only list each WAN once. Skipping..."
|
||||
continue
|
||||
fi
|
||||
|
||||
start_tc_interface $int $dev $ifb "$default_class_id"
|
||||
intdev_done="$(echo "$dev_done"; echo -n $dev)"
|
||||
done
|
||||
}
|
||||
|
||||
do_start() {
|
||||
local only_int=$1 type
|
||||
|
||||
preinit
|
||||
(LOGLEVEL=0 do_stop "$only_int")
|
||||
requires
|
||||
|
||||
trap "set +e; do_stop $only_int" EXIT
|
||||
|
||||
v "Starting $APPNAME${only_int:+ for interface $only_int}"
|
||||
|
||||
local default_class_id
|
||||
if ! default_class_id=$(i=2 config_foreach 'eval echo $((i++))' class '| grep " default"'); then
|
||||
die 2 "No default class defined!"
|
||||
fi
|
||||
default_class_id=${default_class_id% *}
|
||||
|
||||
[ "$only_int" ] || start_iptables
|
||||
start_tc "$default_class_id" "$only_int"
|
||||
|
||||
trap - EXIT
|
||||
}
|
||||
|
||||
start_service() {
|
||||
( do_start )
|
||||
}
|
||||
|
||||
stop_service() {
|
||||
( do_stop )
|
||||
}
|
||||
|
||||
restart_service() {
|
||||
( do_start )
|
||||
}
|
||||
|
||||
is_running() {
|
||||
$IP4T -t mangle -L $IPT_CHAIN &>/dev/null
|
||||
}
|
||||
|
||||
reload_service() {
|
||||
preinit
|
||||
if ! is_running; then
|
||||
d "Not running. Nothing to reload"
|
||||
return 0
|
||||
fi
|
||||
logger -t "$APPNAME" "Reloading $*..."
|
||||
( do_start "$@" )
|
||||
}
|
||||
|
||||
add_interface_trigger() {
|
||||
procd_add_interface_trigger "interface.update" "$1" /etc/init.d/$APPNAME reload $1
|
||||
}
|
||||
|
||||
service_triggers() {
|
||||
preinit; set +e
|
||||
requires
|
||||
|
||||
procd_add_reload_trigger "$APPNAME"
|
||||
config_foreach add_interface_trigger wan
|
||||
|
||||
procd_open_validate
|
||||
validate_trafficshaper_global
|
||||
validate_trafficshaper_wan
|
||||
validate_trafficshaper_class
|
||||
procd_close_validate
|
||||
}
|
||||
|
||||
validate_trafficshaper_global() {
|
||||
uci_validate_section $APPNAME global "${1}" \
|
||||
'mark_mask:uinteger:0xFF'
|
||||
}
|
||||
|
||||
validate_trafficshaper_wan() {
|
||||
uci_validate_section "$APPNAME" wan "${1}" \
|
||||
'downlink:uinteger' \
|
||||
'uplink:uinteger'
|
||||
}
|
||||
|
||||
validate_trafficshaper_class() {
|
||||
uci_validate_section "$APPNAME" class "${1}" \
|
||||
'network:cidr' \
|
||||
'reserved_downlink:or(uinteger, string)' \
|
||||
'reserved_uplink:or(uinteger, string)' \
|
||||
'allowed_downlink:or(uinteger, string)' \
|
||||
'allowed_uplink:or(uinteger, string)'
|
||||
}
|
||||
|
||||
boot() {
|
||||
LOGLEVEL=1 start
|
||||
}
|
||||
Loading…
Reference in New Issue