--- /dev/null
+#!/bin/sh
+. /etc/functions.sh
+
+insmod="insmod"
+[ -f /sbin/modprobe ] && insmod="modprobe"
+
+add_insmod() {
+ eval "export isset=\${insmod_$1}"
+ case "$isset" in
+ 1) ;;
+ *) append INSMOD "$insmod $* >&- 2>&-" "$N"; export insmod_$1=1;;
+ esac
+}
+
+find_ifname() {(
+ include /lib/network
+ scan_interfaces
+ config_get "$1" ifname
+)}
+
+parse_matching_rule() {
+ local var="$1"
+ local section="$2"
+ local options="$3"
+ local prefix="$4"
+ local suffix="$5"
+ local proto="$6"
+ local mport=""
+ local ports=""
+
+ append "$var" "$prefix" "$N"
+ for option in $options; do
+ case "$option" in
+ proto) config_get value "$section" proto; proto="${proto:-$value}";;
+ esac
+ done
+ config_get type "$section" TYPE
+ case "$type" in
+ classify) unset pkt; append "$var" "-m mark --mark 0";;
+ default) pkt=1; append "$var" "-m mark --mark 0";;
+ reclassify) pkt=1;;
+ esac
+ append "$var" "${proto:+-p $proto}"
+ for option in $options; do
+ config_get value "$section" "$option"
+
+ case "$pkt:$option" in
+ *:srchost)
+ append "$var" "-s $value"
+ ;;
+ *:dsthost)
+ append "$var" "-d $value"
+ ;;
+ *:ipp2p)
+ add_insmod ipt_ipp2p
+ append "$var" "-m ipp2p"
+ case "$value" in
+ all) append "$var" "--edk --dc --kazaa --gnu --bit";;
+ *) append "$var" "--$value";;
+ esac
+ ;;
+ *:layer7)
+ add_insmod ipt_layer7
+ append "$var" "-m layer7 --l7proto $value${pkt:+ --l7pkt}"
+ ;;
+ *:ports|*:srcports|*:dstports)
+ value="$(echo "$value" | sed -e 's,-,:,g')"
+ lproto=${lproto:-tcp}
+ case "$proto" in
+ ""|tcp|udp) append "$var" "-m ${proto:-tcp -p tcp} -m multiport";;
+ *) unset "$var"; return 0;;
+ esac
+ case "$option" in
+ ports)
+ config_set "$section" srcports ""
+ config_set "$section" dstports ""
+ config_set "$section" portrange ""
+ append "$var" "--ports $value"
+ ;;
+ srcports)
+ config_set "$section" ports ""
+ config_set "$section" dstports ""
+ config_set "$section" portrange ""
+ append "$var" "--sports $value"
+ ;;
+ dstports)
+ config_set "$section" ports ""
+ config_set "$section" srcports ""
+ config_set "$section" portrange ""
+ append "$var" "--dports $value"
+ ;;
+ esac
+ ports=1
+ ;;
+ *:portrange)
+ config_set "$section" ports ""
+ config_set "$section" srcports ""
+ config_set "$section" dstports ""
+ value="$(echo "$value" | sed -e 's,-,:,g')"
+ case "$proto" in
+ ""|tcp|udp) append "$var" "-m ${proto:-tcp -p tcp} --sport $value --dport $value";;
+ *) unset "$var"; return 0;;
+ esac
+ ports=1
+ ;;
+ 1:pktsize)
+ value="$(echo "$value" | sed -e 's,-,:,g')"
+ add_insmod ipt_length
+ append "$var" "-m length --length $value"
+ ;;
+ 1:limit)
+ add_insmod ipt_limit
+ append "$var" "-m limit --limit $value"
+ ;;
+ 1:tcpflags)
+ case "$proto" in
+ tcp) append "$var" "-m tcp --tcp-flags ALL $value";;
+ *) unset $var; return 0;;
+ esac
+ ;;
+ 1:mark)
+ config_get class "${value##!}" classnr
+ [ -z "$class" ] && continue;
+ case "$value" in
+ !*) append "$var" "-m mark ! --mark $class";;
+ *) append "$var" "-m mark --mark $class";;
+ esac
+ esac
+ done
+ append "$var" "$suffix"
+ case "$ports:$proto" in
+ 1:) parse_matching_rule "$var" "$section" "$options" "$prefix" "$suffix" "udp";;
+ esac
+}
+
+config_cb() {
+ option_cb() {
+ return 0
+ }
+
+ # Section start
+ case "$1" in
+ interface)
+ config_set "$1" "classgroup" "Default"
+ config_set "$1" "upload" "128"
+ config_set "$1" "download" "1024"
+ ;;
+ classify|default|reclassify)
+ option_cb() {
+ append options "$1"
+ }
+ ;;
+ esac
+
+ # Section end
+ config_get TYPE "$CONFIG_SECTION" TYPE
+ case "$TYPE" in
+ interface)
+ config_get enabled "$CONFIG_SECTION" enabled
+ config_get download "$CONFIG_SECTION" download
+ config_get classgroup "$CONFIG_SECTION" classgroup
+ config_set "$CONFIG_SECTION" imqdev "$C"
+ [ -z "$enabled" -o "$(($enabled))" -eq 0 ] || {
+ C=$(($C+1))
+ INTERFACES="$INTERFACES $CONFIG_SECTION"
+ config_set "$classgroup" enabled 1
+ }
+ config_get device "$CONFIG_SECTION" device
+ [ -z "$device" ] && device="$(find_ifname ${CONFIG_SECTION})"
+ config_set "$CONFIG_SECTION" device "${device:-eth0}"
+ ;;
+ classgroup) append CG "$CONFIG_SECTION";;
+ classify|default|reclassify)
+ case "$TYPE" in
+ classify) var="ctrules";;
+ *) var="rules";;
+ esac
+ config_get target "$CONFIG_SECTION" target
+ config_set "$CONFIG_SECTION" options "$options"
+ append "$var" "$CONFIG_SECTION"
+ unset options
+ ;;
+ esac
+}
+
+class_main_qdisc() {
+ local device="$1"
+ awk -f - <<EOF
+BEGIN {
+ limit = int("$maxrate")
+ m2 = int("$m2")
+ dmax = int("$dmax")
+ umax = int("$umax")
+ share = int("$share")
+
+ if (!(m2 > 0)) {
+ dmax = 500
+ umax = 1500
+ m2 = 10
+ rt = 0
+ } else {
+ rt = 1
+ }
+
+ cdata = ""
+ pdmax = int (dmax + (umax * 8 / limit))
+ if (rt == 1) {
+ if (share > 0) cdata = " rt"
+ else cdata = " ls"
+ if ((umax > 0) && (dmax > 0)) {
+ cdata = cdata " umax " umax "b dmax " pdmax "ms"
+ }
+ cdata = cdata " rate " m2 "kbit"
+ }
+ if (share > 0) {
+ if ((m2 > 0) && (umax > 0) && (dmax > 0)) {
+ cdata = cdata " ls umax " umax "b dmax " pdmax "ms rate " share "kbit"
+ } else {
+ cdata = cdata " ls m1 " share "kbit d 500ms m2 " share "kbit"
+ }
+ }
+
+ print "tc class add dev $device parent 1:1 classid 1:${classnr}0 hfsc" cdata " ul rate " limit "kbit"
+}
+EOF
+}
+
+class_leaf_qdisc() {
+ local device="$1"
+ awk -f - <<EOF
+
+function qlen(rate, m2, umax, dmax, qb, qr, qt, ql) {
+ qlen_min = 5 # minimum queue length
+ qlen_base = 1.7 # base value - queueing time in seconds
+ qlen_avgr = 0.7 # avgrate modifier
+ qlen_dmax = 0.0 # dmax modifier
+
+ # bits in a packet
+ qb = 1500
+ if ((m2 > 0) && (umax > 0)) qb -= int((1500 - umax) * qlen_pkt)
+ qb *= 8
+
+ # rate in bits/s
+ qr = rate
+ qr -= int((rate - m2) * qlen_avgr)
+ qr *= 1024
+
+ # queue time
+ qt = qlen_base + qlen_dmax * (dmax / 1000)
+
+ # queue length
+ ql = int(qr * qt / qb)
+ if (ql < qlen_min) ql = qlen_min
+
+ return ql
+}
+
+BEGIN {
+ sfq_dthresh = 25 # use sfq for download if pktdelay set to this or lower
+
+ limit = int("$maxrate")
+ m2 = int("$m2")
+ dmax = int("$dmax")
+ umax = int("$umax")
+
+ if (!(m2 > 0)) {
+ dmax = 500
+ umax = 1500
+ m2 = 10
+ }
+
+ cqlen = ${dl_mode:+2 * }qlen(limit, m2, umax, dmax)
+
+ printf "tc qdisc add dev $device parent 1:${classnr}0 handle ${classnr}00: "
+ if (("$dir" != "down") || ((dmax > 0) && (dmax <= sfq_dthresh))) {
+ print "sfq perturb 10 limit " cqlen
+ } else {
+ avpkt = 1200
+ min = int(limit * 1024 / 8 * 0.1)
+ dqb = cqlen * 1500
+ max = int(min + (dqb - min) * 0.25)
+ burst = int((2 * min + max) / (3 * avpkt))
+
+ print "red min " min " max " max " burst " burst " avpkt " avpkt " limit " dqb " probability 0.04 ecn"
+ }
+}
+EOF
+}
+
+enum_classes() {
+ local c="0"
+ config_get classes "$1" classes
+ config_get default "$1" default
+ for class in $classes; do
+ c="$(($c + 1))"
+ config_set "${class}" classnr $c
+ case "$class" in
+ $default) class_default=$c;;
+ esac
+ done
+ class_default="${class_default:-$c}"
+}
+
+cls_var() {
+ local varname="$1"
+ local class="$2"
+ local name="$3"
+ local type="$4"
+ local default="$5"
+ local tmp tmp1 tmp2
+ config_get tmp1 "$class" "$name"
+ config_get tmp2 "${class}_${type}" "$name"
+ tmp="${tmp2:-$tmp1}"
+ tmp="${tmp:-$tmp2}"
+ export ${varname}="${tmp:-$default}"
+}
+
+start_interface() {
+ local iface="$1"
+ local num_imq="$2"
+ config_get device "$iface" device
+ config_get enabled "$iface" enabled
+ [ -z "$device" -o -z "$enabled" ] && exit
+ config_get upload "$iface" upload
+ config_get halfduplex "$iface" halfduplex
+ config_get download "$iface" download
+ config_get classgroup "$iface" classgroup
+
+ download="${download:-${halfduplex:+$upload}}"
+ enum_classes "$classgroup"
+ for dir in up${halfduplex} ${download:+down}; do
+ case "$dir" in
+ up)
+ upload=$(($upload * 98 / 100 - 10))
+ dev="$device"
+ rate="$upload"
+ dl_mode=""
+ prefix="cls"
+ ;;
+ down)
+ add_insmod imq numdevs="$num_imq"
+ config_get imqdev "$iface" imqdev
+ download=$(($download * 96 / 100 - 64))
+ dev="imq$imqdev"
+ rate="$download"
+ dl_mode=1
+ prefix="d_cls"
+ ;;
+ *) continue;;
+ esac
+ for class in $classes; do
+ cls_var umax "$class" packetsize $dir 1500
+ cls_var dmax "$class" packetdelay $dir 500
+
+ cls_var maxrate "$class" limitrate $dir 100
+ cls_var share "$class" linksharing $dir 0
+ cls_var m2 "$class" avgrate $dir 0
+ maxrate=$(($maxrate * $rate / 100))
+ share=$(($share * $rate / 100))
+ m2=$(($m2 * $rate / 100))
+
+ config_get classnr "$class" classnr
+ append ${prefix}q "$(class_main_qdisc "$dev" "$iface")" "$N"
+ append ${prefix}l "$(class_leaf_qdisc "$dev" "$iface")" "$N"
+ append ${prefix}f "tc filter add dev $dev parent 1: prio $classnr protocol ip handle $classnr fw flowid 1:${classnr}0" "$N"
+ done
+ export dev_${dir}="ifconfig $dev up txqueuelen 5 >&- 2>&-
+tc qdisc del dev $dev root >&- 2>&-
+tc qdisc add dev $dev root handle 1: hfsc default ${class_default}0
+tc class add dev $dev parent 1: classid 1:1 hfsc sc rate ${rate}kbit ul rate ${rate}kbit"
+ done
+ add_insmod cls_fw
+ add_insmod sch_hfsc
+ add_insmod sch_sfq
+ add_insmod sch_red
+ cat <<EOF
+${INSMOD:+$INSMOD$N}${dev_up:+$dev_up
+$clsq
+$clsl
+$clsf
+}${imqdev:+$dev_down
+$d_clsq
+$d_clsl
+$d_clsf
+}
+EOF
+ unset INSMOD clsq clsf clsl d_clsq d_clsl d_clsf dev_up dev_down
+}
+
+start_interfaces() {
+ local C="$1"
+ for iface in $INTERFACES; do
+ start_interface "$iface" "$C"
+ done
+}
+
+add_rules() {
+ local var="$1"
+ local rules="$2"
+ local prefix="$3"
+
+ for rule in $rules; do
+ unset iptrule
+ config_get target "$rule" target
+ config_get target "$target" classnr
+ config_get options "$rule" options
+ parse_matching_rule iptrule "$rule" "$options" "$prefix" "-j MARK --set-mark $target"
+ append "$var" "$iptrule" "$N"
+ done
+}
+
+start_cg() {
+ local cg="$1"
+ local iptrules
+ local pktrules
+ local sizerules
+ local download
+ enum_classes "$cg"
+ add_rules iptrules "$ctrules" "iptables -t mangle -A ${cg}_ct"
+ config_get classes "$cg" classes
+ for class in $classes; do
+ config_get mark "$class" classnr
+ config_get maxsize "$class" maxsize
+ [ -z "$maxsize" -o -z "$mark" ] || {
+ add_insmod ipt_length
+ append pktrules "iptables -t mangle -A ${cg} -m mark --mark $mark -m length --length $maxsize: -j MARK --set-mark 0" "$N"
+ }
+ done
+ add_rules pktrules "$rules" "iptables -t mangle -A ${cg}"
+ for iface in $INTERFACES; do
+ config_get classgroup "$iface" classgroup
+ config_get device "$iface" device
+ config_get imqdev "$iface" imqdev
+ config_get dl "$iface" download
+ config_get halfduplex "$iface" halfduplex
+ add_insmod ipt_IMQ
+ append up "iptables -t mangle -A OUTPUT -o $device -j ${cg}" "$N"
+ append up "iptables -t mangle -A FORWARD -o $device -j ${cg}" "$N"
+ [ -z "$dl" ] || {
+ [ -z "$halfduplex" ] || {
+ append down "iptables -t mangle -A POSTROUTING -o $device -j IMQ --todev $imqdev" "$N"
+ }
+ append down "iptables -t mangle -A PREROUTING -i $device -j ${cg}" "$N"
+ append down "iptables -t mangle -A PREROUTING -i $device -j IMQ --todev $imqdev" "$N"
+ }
+ done
+ cat <<EOF
+$INSMOD
+iptables -t mangle -N ${cg} >&- 2>&-
+iptables -t mangle -N ${cg}_ct >&- 2>&-
+${iptrules:+${iptrules}${N}iptables -t mangle -A ${cg}_ct -j CONNMARK --save-mark}
+iptables -t mangle -A ${cg} -j CONNMARK --restore-mark
+iptables -t mangle -A ${cg} -m mark --mark 0 -j ${cg}_ct
+$pktrules
+$up$N${down:+${down}$N}
+EOF
+ unset INSMOD
+}
+
+start_firewall() {
+ add_insmod ipt_multiport
+ add_insmod ipt_CONNMARK
+ cat <<EOF
+iptables -t mangle -F
+iptables -t mangle -X
+EOF
+ for group in $CG; do
+ start_cg $group
+ done
+}
+
+C="0"
+INTERFACES=""
+config_load qos
+
+C="0"
+for iface in $INTERFACES; do
+ export C="$(($C + 1))"
+done
+
+case "$1" in
+ all)
+ start_interfaces "$C"
+ start_firewall
+ ;;
+ interface)
+ start_interface "$2" "$C"
+ ;;
+ interfaces)
+ start_interfaces
+ ;;
+ firewall)
+ start_firewall
+ ;;
+esac
projects / openwrt.git / commitdiff