This patch allows the user to specify esfq as the leaf qdisc, as well as perturb...
[openwrt/svn-archive/archive.git] / package / qos-scripts / files / usr / lib / qos / generate.sh
1 #!/bin/sh
2 [ -e /etc/functions.sh ] && . /etc/functions.sh || . ./functions.sh
3 [ -x /sbin/modprobe ] && {
4 insmod="modprobe"
5 rmmod="$insmod -r"
6 } || {
7 insmod="insmod"
8 rmmod="rmmod"
9 }
10
11 add_insmod() {
12 eval "export isset=\${insmod_$1}"
13 case "$isset" in
14 1) ;;
15 *) {
16 [ "$2" ] && append INSMOD "$rmmod $1 >&- 2>&-" "$N"
17 append INSMOD "$insmod $* >&- 2>&-" "$N"; export insmod_$1=1
18 };;
19 esac
20 }
21
22 [ -e /etc/config/network ] && {
23 # only try to parse network config on openwrt
24
25 find_ifname() {(
26 reset_cb
27 include /lib/network
28 scan_interfaces
29 config_get "$1" ifname
30 )}
31 } || {
32 find_ifname() {
33 echo "Interface not found."
34 exit 1
35 }
36 }
37
38 parse_matching_rule() {
39 local var="$1"
40 local section="$2"
41 local options="$3"
42 local prefix="$4"
43 local suffix="$5"
44 local proto="$6"
45 local mport=""
46 local ports=""
47
48 append "$var" "$prefix" "$N"
49 for option in $options; do
50 case "$option" in
51 proto) config_get value "$section" proto; proto="${proto:-$value}";;
52 esac
53 done
54 config_get type "$section" TYPE
55 case "$type" in
56 classify) unset pkt; append "$var" "-m mark --mark 0";;
57 default) pkt=1; append "$var" "-m mark --mark 0";;
58 reclassify) pkt=1;;
59 esac
60 append "$var" "${proto:+-p $proto}"
61 for option in $options; do
62 config_get value "$section" "$option"
63
64 case "$pkt:$option" in
65 *:srchost)
66 append "$var" "-s $value"
67 ;;
68 *:dsthost)
69 append "$var" "-d $value"
70 ;;
71 *:layer7)
72 add_insmod ipt_layer7
73 add_insmod xt_layer7
74 append "$var" "-m layer7 --l7proto $value${pkt:+ --l7pkt}"
75 ;;
76 *:ports|*:srcports|*:dstports)
77 value="$(echo "$value" | sed -e 's,-,:,g')"
78 lproto=${lproto:-tcp}
79 case "$proto" in
80 ""|tcp|udp) append "$var" "-m ${proto:-tcp -p tcp} -m multiport";;
81 *) unset "$var"; return 0;;
82 esac
83 case "$option" in
84 ports)
85 config_set "$section" srcports ""
86 config_set "$section" dstports ""
87 config_set "$section" portrange ""
88 append "$var" "--ports $value"
89 ;;
90 srcports)
91 config_set "$section" ports ""
92 config_set "$section" dstports ""
93 config_set "$section" portrange ""
94 append "$var" "--sports $value"
95 ;;
96 dstports)
97 config_set "$section" ports ""
98 config_set "$section" srcports ""
99 config_set "$section" portrange ""
100 append "$var" "--dports $value"
101 ;;
102 esac
103 ports=1
104 ;;
105 *:portrange)
106 config_set "$section" ports ""
107 config_set "$section" srcports ""
108 config_set "$section" dstports ""
109 value="$(echo "$value" | sed -e 's,-,:,g')"
110 case "$proto" in
111 ""|tcp|udp) append "$var" "-m ${proto:-tcp -p tcp} --sport $value --dport $value";;
112 *) unset "$var"; return 0;;
113 esac
114 ports=1
115 ;;
116 *:connbytes)
117 value="$(echo "$value" | sed -e 's,-,:,g')"
118 add_insmod ipt_connbytes
119 append "$var" "-m connbytes --connbytes $value --connbytes-dir both --connbytes-mode bytes"
120 ;;
121 *:tos)
122 add_insmod ipt_tos
123 case "$value" in
124 !*) append "$var" "-m tos ! --tos $value";;
125 *) append "$var" "-m tos --tos $value"
126 esac
127 ;;
128 *:dscp)
129 add_insmod ipt_dscp
130 dscp_option="--dscp"
131 [ -z "${value%%[EBCA]*}" ] && dscp_option="--dscp-class"
132 case "$value" in
133 !*) append "$var" "-m dscp ! $dscp_option $value";;
134 *) append "$var" "-m dscp $dscp_option $value"
135 esac
136 ;;
137 *:direction)
138 value="$(echo "$value" | sed -e 's,-,:,g')"
139 if [ "$value" = "out" ]; then
140 append "$var" "-o $device"
141 elif [ "$value" = "in" ]; then
142 append "$var" "-i $device"
143 fi
144 ;;
145 1:pktsize)
146 value="$(echo "$value" | sed -e 's,-,:,g')"
147 add_insmod ipt_length
148 append "$var" "-m length --length $value"
149 ;;
150 1:limit)
151 add_insmod ipt_limit
152 append "$var" "-m limit --limit $value"
153 ;;
154 1:tcpflags)
155 case "$proto" in
156 tcp) append "$var" "-m tcp --tcp-flags ALL $value";;
157 *) unset $var; return 0;;
158 esac
159 ;;
160 1:mark)
161 config_get class "${value##!}" classnr
162 [ -z "$class" ] && continue;
163 case "$value" in
164 !*) append "$var" "-m mark ! --mark $class";;
165 *) append "$var" "-m mark --mark $class";;
166 esac
167 ;;
168 1:TOS)
169 add_insmod ipt_TOS
170 config_get TOS "$rule" 'TOS'
171 suffix="-j TOS --set-tos "${TOS:-"Normal-Service"}
172 ;;
173 1:DSCP)
174 add_insmod ipt_DSCP
175 config_get DSCP "$rule" 'DSCP'
176 [ -z "${DSCP%%[EBCA]*}" ] && set_value="--set-dscp-class $DSCP" \
177 || set_value="--set-dscp $DSCP"
178 suffix="-j DSCP $set_value"
179 ;;
180 esac
181 done
182 append "$var" "$suffix"
183 case "$ports:$proto" in
184 1:) parse_matching_rule "$var" "$section" "$options" "$prefix" "$suffix" "udp";;
185 esac
186 }
187
188 config_cb() {
189 option_cb() {
190 return 0
191 }
192
193 # Section start
194 case "$1" in
195 interface)
196 config_set "$2" "classgroup" "Default"
197 config_set "$2" "upload" "128"
198 ;;
199 classify|default|reclassify)
200 option_cb() {
201 append options "$1"
202 }
203 ;;
204 esac
205
206 # Section end
207 config_get TYPE "$CONFIG_SECTION" TYPE
208 case "$TYPE" in
209 interface)
210 config_get_bool enabled "$CONFIG_SECTION" enabled 1
211 [ 1 -eq "$enabled" ] || return 0
212 config_get classgroup "$CONFIG_SECTION" classgroup
213 config_set "$CONFIG_SECTION" imqdev "$C"
214 C=$(($C+1))
215 append INTERFACES "$CONFIG_SECTION"
216 config_set "$classgroup" enabled 1
217 config_get device "$CONFIG_SECTION" device
218 [ -z "$device" ] && {
219 device="$(find_ifname ${CONFIG_SECTION})"
220 config_set "$CONFIG_SECTION" device "${device:-eth0}"
221 }
222 ;;
223 classgroup) append CG "$CONFIG_SECTION";;
224 classify|default|reclassify)
225 case "$TYPE" in
226 classify) var="ctrules";;
227 *) var="rules";;
228 esac
229 config_get target "$CONFIG_SECTION" target
230 config_set "$CONFIG_SECTION" options "$options"
231 append "$var" "$CONFIG_SECTION"
232 unset options
233 ;;
234 esac
235 }
236
237
238 enum_classes() {
239 local c="0"
240 config_get classes "$1" classes
241 config_get default "$1" default
242 for class in $classes; do
243 c="$(($c + 1))"
244 config_set "${class}" classnr $c
245 case "$class" in
246 $default) class_default=$c;;
247 esac
248 done
249 class_default="${class_default:-$c}"
250 }
251
252 cls_var() {
253 local varname="$1"
254 local class="$2"
255 local name="$3"
256 local type="$4"
257 local default="$5"
258 local tmp tmp1 tmp2
259 config_get tmp1 "$class" "$name"
260 config_get tmp2 "${class}_${type}" "$name"
261 tmp="${tmp2:-$tmp1}"
262 tmp="${tmp:-$tmp2}"
263 export ${varname}="${tmp:-$default}"
264 }
265
266 tcrules() {
267 dir=/usr/lib/qos
268 [ -e $dir/tcrules.awk ] || dir=.
269 echo "$cstr" | awk \
270 -v device="$dev" \
271 -v linespeed="$rate" \
272 -f $dir/tcrules.awk
273 }
274
275 start_interface() {
276 local iface="$1"
277 local num_imq="$2"
278 config_get device "$iface" device
279 config_get_bool enabled "$iface" enabled 1
280 [ -z "$device" -o 1 -ne "$enabled" ] && {
281 return 1
282 }
283 config_get upload "$iface" upload
284 config_get_bool halfduplex "$iface" halfduplex
285 config_get download "$iface" download
286 config_get classgroup "$iface" classgroup
287 config_get_bool overhead "$iface" overhead 0
288
289 download="${download:-${halfduplex:+$upload}}"
290 enum_classes "$classgroup"
291 for dir in ${halfduplex:-up} ${download:+down}; do
292 case "$dir" in
293 up)
294 [ "$overhead" = 1 ] && upload=$(($upload * 98 / 100 - (15 * 128 / $upload)))
295 dev="$device"
296 rate="$upload"
297 dl_mode=""
298 prefix="cls"
299 ;;
300 down)
301 [ "$(ls -d /proc/sys/net/ipv4/conf/imq* 2>&- | wc -l)" -ne "$num_imq" ] && add_insmod imq numdevs="$num_imq"
302 config_get imqdev "$iface" imqdev
303 [ "$overhead" = 1 ] && download=$(($download * 98 / 100 - (80 * 1024 / $download)))
304 dev="imq$imqdev"
305 rate="$download"
306 dl_mode=1
307 prefix="d_cls"
308 ;;
309 *) continue;;
310 esac
311 cstr=
312 for class in $classes; do
313 cls_var pktsize "$class" packetsize $dir 1500
314 cls_var pktdelay "$class" packetdelay $dir 0
315 cls_var maxrate "$class" limitrate $dir 100
316 cls_var prio "$class" priority $dir 1
317 cls_var avgrate "$class" avgrate $dir 0
318 cls_var qdisc_esfq "$class" qdisc_esfq $dir ""
319 [ "$qdisc_esfq" != "" ] && add_insmod sch_esfq
320 config_get classnr "$class" classnr
321 append cstr "$classnr:$prio:$avgrate:$pktsize:$pktdelay:$maxrate:$qdisc_esfq" "$N"
322 done
323 append ${prefix}q "$(tcrules)" "$N"
324 export dev_${dir}="ifconfig $dev up txqueuelen 5 >&- 2>&-
325 tc qdisc del dev $dev root >&- 2>&-
326 tc qdisc add dev $dev root handle 1: hfsc default ${class_default}0
327 tc class add dev $dev parent 1: classid 1:1 hfsc sc rate ${rate}kbit ul rate ${rate}kbit"
328 done
329 add_insmod cls_fw
330 add_insmod sch_hfsc
331 add_insmod sch_sfq
332 add_insmod sch_red
333
334 cat <<EOF
335 ${INSMOD:+$INSMOD$N}${dev_up:+$dev_up
336 $clsq
337 }${imqdev:+$dev_down
338 $d_clsq
339 $d_clsl
340 $d_clsf
341 }
342 EOF
343 unset INSMOD clsq clsf clsl d_clsq d_clsl d_clsf dev_up dev_down
344 }
345
346 start_interfaces() {
347 local C="$1"
348 for iface in $INTERFACES; do
349 start_interface "$iface" "$C"
350 done
351 }
352
353 add_rules() {
354 local var="$1"
355 local rules="$2"
356 local prefix="$3"
357
358 for rule in $rules; do
359 unset iptrule
360 config_get target "$rule" target
361 config_get target "$target" classnr
362 config_get options "$rule" options
363
364 ## If we want to override the TOS field, let's clear the DSCP field first.
365 [ ! -z "$(echo $options | grep 'TOS')" ] && {
366 s_options=${options%%TOS}
367 add_insmod ipt_DSCP
368 parse_matching_rule iptrule "$rule" "$s_options" "$prefix" "-j DSCP --set-dscp 0"
369 append "$var" "$iptrule" "$N"
370 unset iptrule
371 }
372
373 parse_matching_rule iptrule "$rule" "$options" "$prefix" "-j MARK --set-mark $target"
374 append "$var" "$iptrule" "$N"
375 done
376 }
377
378 start_cg() {
379 local cg="$1"
380 local iptrules
381 local pktrules
382 local sizerules
383 local download
384 enum_classes "$cg"
385 add_rules iptrules "$ctrules" "iptables -t mangle -A ${cg}_ct"
386 config_get classes "$cg" classes
387 for class in $classes; do
388 config_get mark "$class" classnr
389 config_get maxsize "$class" maxsize
390 [ -z "$maxsize" -o -z "$mark" ] || {
391 add_insmod ipt_length
392 append pktrules "iptables -t mangle -A ${cg} -m mark --mark $mark -m length --length $maxsize: -j MARK --set-mark 0" "$N"
393 }
394 done
395 add_rules pktrules "$rules" "iptables -t mangle -A ${cg}"
396 for iface in $INTERFACES; do
397 config_get classgroup "$iface" classgroup
398 config_get device "$iface" device
399 config_get imqdev "$iface" imqdev
400 config_get dl "$iface" download
401 config_get halfduplex "$iface" halfduplex
402 add_insmod ipt_IMQ
403 append up "iptables -t mangle -A OUTPUT -o $device -j ${cg}" "$N"
404 append up "iptables -t mangle -A FORWARD -o $device -j ${cg}" "$N"
405 [ -z "$dl" ] || {
406 append down "iptables -t mangle -A POSTROUTING -o $device -j ${cg}" "$N"
407 [ -z "$halfduplex" ] || {
408 append down "iptables -t mangle -A POSTROUTING -o $device -j IMQ --todev $imqdev" "$N"
409 }
410 append down "iptables -t mangle -A PREROUTING -i $device -j ${cg}" "$N"
411 append down "iptables -t mangle -A PREROUTING -i $device -j IMQ --todev $imqdev" "$N"
412 }
413 done
414 cat <<EOF
415 $INSMOD
416 iptables -t mangle -N ${cg} >&- 2>&-
417 iptables -t mangle -N ${cg}_ct >&- 2>&-
418 ${iptrules:+${iptrules}${N}iptables -t mangle -A ${cg}_ct -j CONNMARK --save-mark}
419 iptables -t mangle -A ${cg} -j CONNMARK --restore-mark
420 iptables -t mangle -A ${cg} -m mark --mark 0 -j ${cg}_ct
421 $pktrules
422 $up$N${down:+${down}$N}
423 EOF
424 unset INSMOD
425 }
426
427 start_firewall() {
428 add_insmod ipt_multiport
429 add_insmod ipt_CONNMARK
430 cat <<EOF
431 iptables -t mangle -F
432 iptables -t mangle -X
433 EOF
434 for group in $CG; do
435 start_cg $group
436 done
437 }
438
439 C="0"
440 INTERFACES=""
441 [ -e ./qos.conf ] && {
442 . ./qos.conf
443 config_cb
444 } || config_load qos
445
446 C="0"
447 for iface in $INTERFACES; do
448 export C="$(($C + 1))"
449 done
450
451 case "$1" in
452 all)
453 start_interfaces "$C"
454 start_firewall
455 ;;
456 interface)
457 start_interface "$2" "$C"
458 ;;
459 interfaces)
460 start_interfaces
461 ;;
462 firewall)
463 start_firewall
464 ;;
465 esac