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1 | #!/bin/bash |
2 | # | |
3 | # cbq.init v0.7.3 | |
4 | # Copyright (C) 1999 Pavel Golubev <pg@ksi-linux.com> | |
5 | # Copyright (C) 2001-2004 Lubomir Bulej <pallas@kadan.cz> | |
6 | # | |
7 | # chkconfig: 2345 11 89 | |
8 | # description: sets up CBQ-based traffic control | |
9 | # | |
10 | # This program is free software; you can redistribute it and/or modify | |
11 | # it under the terms of the GNU General Public License as published by | |
12 | # the Free Software Foundation; either version 2 of the License, or | |
13 | # (at your option) any later version. | |
14 | # | |
15 | # This program is distributed in the hope that it will be useful, | |
16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | # GNU General Public License for more details. | |
19 | # | |
20 | # You should have received a copy of the GNU General Public License | |
21 | # along with this program; if not, write to the Free Software | |
22 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | # | |
24 | # To get the latest version, check on Freshmeat for actual location: | |
25 | # | |
26 | # http://freshmeat.net/projects/cbq.init | |
27 | # | |
28 | # | |
29 | # VERSION HISTORY | |
30 | # --------------- | |
31 | # v0.7.3- Deepak Singhal <singhal at users.sourceforge.net> | |
32 | # - fix timecheck to not ignore regular TIME rules after | |
33 | # encountering a TIME rule that spans over midnight | |
34 | # - Nathan Shafer <nicodemus at users.sourceforge.net> | |
35 | # - allow symlinks to class files | |
36 | # - Seth J. Blank <antifreeze at users.sourceforge.net> | |
37 | # - replace hardcoded ip/tc location with variables | |
38 | # - Mark Davis <mark.davis at gmx.de> | |
39 | # - allow setting of PRIO_{MARK,RULE,REALM} in class file | |
40 | # - Fernando Sanch <toptnc at users.sourceforge.net> | |
41 | # - allow underscores in interface names | |
42 | # v0.7.2- Paulo Sedrez | |
43 | # - fix time2abs to allow hours with leading zero in TIME rules | |
44 | # - Svetlin Simeonov <zvero at yahoo.com> | |
45 | # - fix cbq_device_list to allow VLAN interfaces | |
46 | # - Mark Davis <mark.davis at gmx.de> | |
47 | # - ignore *~ backup files when looking for classes | |
48 | # - Mike Boyer <boyer at administrative.com> | |
49 | # - fix to allow arguments to be passed to "restart" command | |
50 | # v0.7.1- Lubomir Bulej <pallas at kadan.cz> | |
51 | # - default value for PERTURB | |
52 | # - fixed small bug in RULE parser to correctly parse rules with | |
53 | # identical source and destination fields | |
54 | # - faster initial scanning of DEVICE fields | |
55 | # v0.7 - Lubomir Bulej <pallas at kadan.cz> | |
56 | # - lots of various cleanups and reorganizations; the parsing is now | |
57 | # some 40% faster, but the class ID must be in range 0x0002-0xffff | |
58 | # (again). Because of the number of internal changes and the above | |
59 | # class ID restriction, I bumped the version to 0.7 to indicate | |
60 | # something might have got broken :) | |
61 | # - changed PRIO_{U32,FW,ROUTE} to PRIO_{RULE,MARK,REALM} | |
62 | # for consistency with filter keywords | |
63 | # - exposed "compile" command | |
64 | # - Catalin Petrescu <taz at dntis.ro> | |
65 | # - support for port masks in RULE (u32) filter | |
66 | # - Jordan Vrtanoski <obeliks at mt.net.mk> | |
67 | # - support for week days in TIME rules | |
68 | # v0.6.4- Lubomir Bulej <pallas at kadan.cz> | |
69 | # - added PRIO_* variables to allow easy control of filter priorities | |
70 | # - added caching to speed up CBQ start, the cache is invalidated | |
71 | # whenever any of the configuration files changes | |
72 | # - updated the readme section + some cosmetic fixes | |
73 | # v0.6.3- Lubomir Bulej <pallas at kadan.cz> | |
74 | # - removed setup of (unnecessary) class 1:1 - all classes | |
75 | # now use qdisc's default class 1:0 as their parent | |
76 | # - minor fix in the timecheck branch - classes | |
77 | # without leaf qdisc were not updated | |
78 | # - minor fix to avoid timecheck failure when run | |
79 | # at time with minutes equal to 08 or 09 | |
80 | # - respect CBQ_PATH setting in environment | |
81 | # - made PRIO=5 default, rendering it optional in configs | |
82 | # - added support for route filter, see notes about REALM keyword | |
83 | # - added support for fw filter, see notes about MARK keyword | |
84 | # - added filter display to "list" and "stats" commands | |
85 | # - readme section update + various cosmetic fixes | |
86 | # v0.6.2- Catalin Petrescu <taz at dntis.ro> | |
87 | # - added tunnels interface handling | |
88 | # v0.6.1- Pavel Golubev <pg at ksi-linux.com> | |
89 | # - added sch_prio module loading | |
90 | # (thanks johan at iglo.virtual.or.id for reminding) | |
91 | # - resolved errors resulting from stricter syntax checking in bash2 | |
92 | # - Lubomir Bulej <pallas at kadan.cz> | |
93 | # - various cosmetic fixes | |
94 | # v0.6 - Lubomir Bulej <pallas at kadan.cz> | |
95 | # - attempt to limit number of spawned processes by utilizing | |
96 | # more of sed power (use sed instead of grep+cut) | |
97 | # - simplified TIME parser, using bash builtins | |
98 | # - added initial support for SFQ as leaf qdisc | |
99 | # - reworked the documentation part a little | |
100 | # - incorporated pending patches and ideas submitted by | |
101 | # following people for versions 0.3 into version 0.6 | |
102 | # - Miguel Freitas <miguel at cetuc.puc-rio.br> | |
103 | # - in case of overlapping TIME parameters, the last match is taken | |
104 | # - Juanjo Ciarlante <jjo at mendoza.gov.ar> | |
105 | # - chkconfig tags, list + stats startup parameters | |
106 | # - optional tc & ip command logging (into /var/run/cbq-*) | |
107 | # - Rafal Maszkowski <rzm at icm.edu.pl> | |
108 | # - PEAK parameter for setting TBF's burst peak rate | |
109 | # - fix for many config files (use find instead of ls) | |
110 | # v0.5.1- Lubomir Bulej <pallas at kadan.cz> | |
111 | # - fixed little but serious bug in RULE parser | |
112 | # v0.5 - Lubomir Bulej <pallas at kadan.cz> | |
113 | # - added options PARENT, LEAF, ISOLATED and BOUNDED. This allows | |
114 | # (with some attention to config file ordering) for creating | |
115 | # hierarchical structures of shapers with classes able (or unable) | |
116 | # to borrow bandwidth from their parents. | |
117 | # - class ID check allows hexadecimal numbers | |
118 | # - rewritten & simplified RULE parser | |
119 | # - cosmetic changes to improve readability | |
120 | # - reorganization to avoid duplicate code (timecheck etc.) | |
121 | # - timecheck doesn't check classes without TIME fields anymore | |
122 | # v0.4 - Lubomir Bulej <pallas at kadan.cz> | |
123 | # - small bugfix in RULE parsing code | |
124 | # - simplified configuration parsing code | |
125 | # - several small cosmetic changes | |
126 | # - TIME parameter can be now specified more than once allowing you to | |
127 | # differentiate RATE throughout the whole day. Time overlapping is | |
128 | # not checked, first match is taken. Midnight wrap (eg. 20:00-6:00) | |
129 | # is allowed and taken care of. | |
130 | # v0.3a4- fixed small bug in IF operator. Thanks to | |
131 | # Rafal Maszkowski <rzm at icm.edu.pl> | |
132 | # v0.3a3- fixed grep bug when using more than 10 eth devices. Thanks to David | |
133 | # Trcka <trcka at poda.cz>. | |
134 | # v0.3a2- fixed bug in "if" operator. Thanks kad at dgtu.donetsk.ua. | |
135 | # v0.3a - added TIME parameter. Example: TIME=00:00-19:00;64Kbit/6Kbit | |
136 | # So, between 00:00 and 19:00 the RATE will be 64Kbit. | |
137 | # Just start "cbq.init timecheck" periodically from cron | |
138 | # (every 10 minutes for example). DON'T FORGET though, to run | |
139 | # "cbq.init start" for CBQ to initialize. | |
140 | # v0.2 - Some cosmetic changes. Now it is more compatible with old bash | |
141 | # version. Thanks to Stanislav V. Voronyi <stas at cnti.uanet.kharkov.ua>. | |
142 | # v0.1 - First public release | |
143 | # | |
144 | # | |
145 | # README | |
146 | # ------ | |
147 | # | |
148 | # First of all - this is just a SIMPLE EXAMPLE of CBQ power. | |
149 | # Don't ask me "why" and "how" :) | |
150 | # | |
151 | # This script is meant to simplify setup and management of relatively simple | |
152 | # CBQ-based traffic control on Linux. Access to advanced networking features | |
153 | # of Linux kernel is provided by "ip" and "tc" utilities from A. Kuznetsov's | |
154 | # iproute2 package, available at ftp://ftp.inr.ac.ru/ip-routing. Because the | |
155 | # utilities serve primarily to translate user wishes to RTNETLINK commands, | |
156 | # their interface is rather spartan, intolerant and requires quite a lot of | |
157 | # typing. And typing is what this script attempts to reduce :) | |
158 | # | |
159 | # The advanced networking stuff in Linux is pretty flexible and this script | |
160 | # aims to bring some of its features to the not-so-hard-core Linux users. Of | |
161 | # course, there is a tradeoff between simplicity and flexibility and you may | |
162 | # realize that the flexibility suffered too much for your needs -- time to | |
163 | # face "ip" and "tc" interface. | |
164 | # | |
165 | # To speed up the "start" command, simple caching was introduced in version | |
166 | # 0.6.4. The caching works so that the sequence of "tc" commands for given | |
167 | # configuration is stored in a file (/var/cache/cbq.init by default) which | |
168 | # is used next time the "start" command is run to avoid repeated parsing of | |
169 | # configuration files. This cache is invalidated whenever any of the CBQ | |
170 | # configuration files changes. If you want to run "cbq.init start" without | |
171 | # caching, run it as "cbq.init start nocache". If you want to force cache | |
172 | # invalidation, run it as "cbq.init start invalidate". Caching is disabled | |
173 | # if you have logging enabled (ie. CBQ_DEBUG is not empty). | |
174 | # | |
175 | # If you only want cqb.init to translate your configuration to "tc" commands, | |
176 | # use "compile" command which will output "tc" commands required to build | |
177 | # your configuration. Bear in mind that "compile" does not check if the "tc" | |
178 | # commands were successful - this is done (in certain places) only when the | |
179 | # "start nocache" command is used, which is also useful when creating the | |
180 | # configuration to check whether it is completely valid. | |
181 | # | |
182 | # All CBQ parameters are valid for Ethernet interfaces only, The script was | |
183 | # tested on various Linux kernel versions from series 2.1 to 2.4 and several | |
184 | # distributions with KSI Linux (Nostromo version) as the premier one. | |
185 | # | |
186 | # | |
187 | # HOW DOES IT WORK? | |
188 | # ----------------- | |
189 | # | |
190 | # Every traffic class must be described by a file in the $CBQ_PATH directory | |
191 | # (/etc/sysconfig/cbq by default) - one file per class. | |
192 | # | |
193 | # The config file names must obey mandatory format: cbq-<clsid>.<name> where | |
194 | # <clsid> is two-byte hexadecimal number in range <0002-FFFF> (which in fact | |
195 | # is a CBQ class ID) and <name> is the name of the class -- anything to help | |
196 | # you distinguish the configuration files. For small amount of classes it is | |
197 | # often possible (and convenient) to let <clsid> resemble bandwidth of the | |
198 | # class. | |
199 | # | |
200 | # Example of valid config name: | |
201 | # cbq-1280.My_first_shaper | |
202 | # | |
203 | # | |
204 | # The configuration file may contain the following parameters: | |
205 | # | |
206 | ### Device parameters | |
207 | # | |
208 | # DEVICE=<ifname>,<bandwidth>[,<weight>] mandatory | |
209 | # DEVICE=eth0,10Mbit,1Mbit | |
210 | # | |
211 | # <ifname> is the name of the interface you want to control | |
212 | # traffic on, e.g. eth0 | |
213 | # <bandwidth> is the physical bandwidth of the device, e.g. for | |
214 | # ethernet 10Mbit or 100Mbit, for arcnet 2Mbit | |
215 | # <weight> is tuning parameter that should be proportional to | |
216 | # <bandwidth>. As a rule of thumb: <weight> = <bandwidth> / 10 | |
217 | # | |
218 | # When you have more classes on one interface, it is enough to specify | |
219 | # <bandwidth> [and <weight>] only once, therefore in other files you only | |
220 | # need to set DEVICE=<ifname>. | |
221 | # | |
222 | ### Class parameters | |
223 | # | |
224 | # RATE=<speed> mandatory | |
225 | # RATE=5Mbit | |
226 | # | |
227 | # Bandwidth allocated to the class. Traffic going through the class is | |
228 | # shaped to conform to specified rate. You can use Kbit, Mbit or bps, | |
229 | # Kbps and Mbps as suffices. If you don't specify any unit, bits/sec | |
230 | # are used. Also note that "bps" means "bytes per second", not bits. | |
231 | # | |
232 | # WEIGHT=<speed> mandatory | |
233 | # WEIGHT=500Kbit | |
234 | # | |
235 | # Tuning parameter that should be proportional to RATE. As a rule | |
236 | # of thumb, use WEIGHT ~= RATE / 10. | |
237 | # | |
238 | # PRIO=<1-8> optional, default 5 | |
239 | # PRIO=5 | |
240 | # | |
241 | # Priority of class traffic. The higher the number, the lesser | |
242 | # the priority. Priority of 5 is just fine. | |
243 | # | |
244 | # PARENT=<clsid> optional, default not set | |
245 | # PARENT=1280 | |
246 | # | |
247 | # Specifies ID of the parent class to which you want this class be | |
248 | # attached. You might want to use LEAF=none for the parent class as | |
249 | # mentioned below. By using this parameter and carefully ordering the | |
250 | # configuration files, it is possible to create simple hierarchical | |
251 | # structures of CBQ classes. The ordering is important so that parent | |
252 | # classes are constructed prior to their children. | |
253 | # | |
254 | # LEAF=none|tbf|sfq optional, default "tbf" | |
255 | # | |
256 | # Tells the script to attach specified leaf queueing discipline to CBQ | |
257 | # class. By default, TBF is used. Note that attaching TBF to CBQ class | |
258 | # shapes the traffic to conform to TBF parameters and prevents the class | |
259 | # from borrowing bandwidth from its parent even if you have BOUNDED set | |
260 | # to "no". To allow the class to borrow bandwith (provided it is not | |
261 | # bounded), you must set LEAF to "none" or "sfq". | |
262 | # | |
263 | # If you want to ensure (approximately) fair sharing of bandwidth among | |
264 | # several hosts in the same class, you might want to specify LEAF=sfq to | |
265 | # attach SFQ as leaf queueing discipline to that class. | |
266 | # | |
267 | # BOUNDED=yes|no optional, default "yes" | |
268 | # | |
269 | # If set to "yes", the class is not allowed to borrow bandwidth from | |
270 | # its parent class in overlimit situation. If set to "no", the class | |
271 | # will be allowed to borrow bandwidth from its parent. | |
272 | # | |
273 | # Note: Don't forget to set LEAF to "none" or "sfq", otherwise the class will | |
274 | # have TBF attached to itself and will not be able to borrow unused | |
275 | # bandwith from its parent. | |
276 | # | |
277 | # ISOLATED=yes|no optional, default "no" | |
278 | # | |
279 | # If set to "yes", the class will not lend unused bandwidth to | |
280 | # its children. | |
281 | # | |
282 | ### TBF qdisc parameters | |
283 | # | |
284 | # BUFFER=<bytes>[/<bytes>] optional, default "10Kb/8" | |
285 | # | |
286 | # This parameter controls the depth of the token bucket. In other | |
287 | # words it represents the maximal burst size the class can send. | |
288 | # The optional part of parameter is used to determine the length | |
289 | # of intervals in packet sizes, for which the transmission times | |
290 | # are kept. | |
291 | # | |
292 | # LIMIT=<bytes> optional, default "15Kb" | |
293 | # | |
294 | # This parameter determines the maximal length of backlog. If | |
295 | # the queue contains more data than specified by LIMIT, the | |
296 | # newly arriving packets are dropped. The length of backlog | |
297 | # determines queue latency in case of congestion. | |
298 | # | |
299 | # PEAK=<speed> optional, default not set | |
300 | # | |
301 | # Maximal peak rate for short-term burst traffic. This allows you | |
302 | # to control the absolute peak rate the class can send at, because | |
303 | # single TBF that allows 256Kbit/s would of course allow rate of | |
304 | # 512Kbit for half a second or 1Mbit for a quarter of second. | |
305 | # | |
306 | # MTU=<bytes> optional, default "1500" | |
307 | # | |
308 | # Maximum number of bytes that can be sent at once over the | |
309 | # physical medium. This parameter is required when you specify | |
310 | # PEAK parameter. It defaults to MTU of ethernet - for other | |
311 | # media types you might want to change it. | |
312 | # | |
313 | # Note: Setting TBF as leaf qdisc will effectively prevent the class from | |
314 | # borrowing bandwidth from the ancestor class, because even if the | |
315 | # class allows more traffic to pass through, it is then shaped to | |
316 | # conform to TBF. | |
317 | # | |
318 | ### SFQ qdisc parameters | |
319 | # | |
320 | # The SFQ queueing discipline is a cheap way for sharing class bandwidth | |
321 | # among several hosts. As it is stochastic, the fairness is approximate but | |
322 | # it will do the job in most cases. If you want real fairness, you should | |
323 | # probably use WRR (weighted round robin) or WFQ queueing disciplines. Note | |
324 | # that SFQ does not do any traffic shaping - the shaping is done by the CBQ | |
325 | # class the SFQ is attached to. | |
326 | # | |
327 | # QUANTUM=<bytes> optional, default not set | |
328 | # | |
329 | # This parameter should not be set lower than link MTU, for ethernet | |
330 | # it is 1500b, or (with MAC header) 1514b which is the value used | |
331 | # in Alexey Kuznetsov's examples. | |
332 | # | |
333 | # PERTURB=<seconds> optional, default "10" | |
334 | # | |
335 | # Period of hash function perturbation. If unset, hash reconfiguration | |
336 | # will never take place which is what you probably don't want. The | |
337 | # default value of 10 seconds is probably a good one. | |
338 | # | |
339 | ### Filter parameters | |
340 | # | |
341 | # RULE=[[saddr[/prefix]][:port[/mask]],][daddr[/prefix]][:port[/mask]] | |
342 | # | |
343 | # These parameters make up "u32" filter rules that select traffic for | |
344 | # each of the classes. You can use multiple RULE fields per config. | |
345 | # | |
346 | # The optional port mask should only be used by advanced users who | |
347 | # understand how the u32 filter works. | |
348 | # | |
349 | # Some examples: | |
350 | # | |
351 | # RULE=10.1.1.0/24:80 | |
352 | # selects traffic going to port 80 in network 10.1.1.0 | |
353 | # | |
354 | # RULE=10.2.2.5 | |
355 | # selects traffic going to any port on single host 10.2.2.5 | |
356 | # | |
357 | # RULE=10.2.2.5:20/0xfffe | |
358 | # selects traffic going to ports 20 and 21 on host 10.2.2.5 | |
359 | # | |
360 | # RULE=:25,10.2.2.128/26:5000 | |
361 | # selects traffic going from anywhere on port 50 to | |
362 | # port 5000 in network 10.2.2.128 | |
363 | # | |
364 | # RULE=10.5.5.5:80, | |
365 | # selects traffic going from port 80 of single host 10.5.5.5 | |
366 | # | |
367 | # | |
368 | # | |
369 | # REALM=[srealm,][drealm] | |
370 | # | |
371 | # These parameters make up "route" filter rules that classify traffic | |
372 | # according to packet source/destination realms. For information about | |
373 | # realms, see Alexey Kuznetsov's IP Command Reference. This script | |
374 | # does not define any realms, it justs builds "tc filter" commands | |
375 | # for you if you need to classify traffic this way. | |
376 | # | |
377 | # Realm is either a decimal number or a string referencing entry in | |
378 | # /etc/iproute2/rt_realms (usually). | |
379 | # | |
380 | # Some examples: | |
381 | # | |
382 | # REALM=russia,internet | |
383 | # selects traffic going from realm "russia" to realm "internet" | |
384 | # | |
385 | # REALM=freenet, | |
386 | # selects traffic going from realm "freenet" | |
387 | # | |
388 | # REALM=10 | |
389 | # selects traffic going to realm 10 | |
390 | # | |
391 | # | |
392 | # | |
393 | # MARK=<mark> | |
394 | # | |
395 | # These parameters make up "fw" filter rules that select traffic for | |
396 | # each of the classes accoring to firewall "mark". Mark is a decimal | |
397 | # number packets are tagged with if firewall rules say so. You can | |
398 | # use multiple MARK fields per config. | |
399 | # | |
400 | # | |
401 | # Note: Rules for different filter types can be combined. Attention must be | |
402 | # paid to the priority of filter rules, which can be set below using | |
403 | # PRIO_{RULE,MARK,REALM} variables. | |
404 | # | |
405 | ### Time ranging parameters | |
406 | # | |
407 | # TIME=[<dow>,<dow>, ...,<dow>/]<from>-<till>;<rate>/<weight>[/<peak>] | |
408 | # TIME=0,1,2,5/18:00-06:00;256Kbit/25Kbit | |
409 | # TIME=60123/18:00-06:00;256Kbit/25Kbit | |
410 | # TIME=18:00-06:00;256Kbit/25Kbit | |
411 | # | |
412 | # This parameter allows you to differentiate the class bandwidth | |
413 | # throughout the day. You can specify multiple TIME parameters, if | |
414 | # the times overlap, last match is taken. The fields <rate>, <weight> | |
415 | # and <peak> correspond to parameters RATE, WEIGHT and PEAK (which | |
416 | # is optional and applies to TBF leaf qdisc only). | |
417 | # | |
418 | # You can also specify days of week when the TIME rule applies. <dow> | |
419 | # is numeric, 0 corresponds to sunday, 1 corresponds to monday, etc. | |
420 | # | |
421 | ### | |
422 | # | |
423 | # Sample configuration file: cbq-1280.My_first_shaper | |
424 | # | |
425 | # -------------------------------------------------------------------------- | |
426 | # DEVICE=eth0,10Mbit,1Mbit | |
427 | # RATE=128Kbit | |
428 | # WEIGHT=10Kbit | |
429 | # PRIO=5 | |
430 | # RULE=192.128.1.0/24 | |
431 | # -------------------------------------------------------------------------- | |
432 | # | |
433 | # The configuration says that we will control traffic on 10Mbit ethernet | |
434 | # device eth0 and the traffic going to network 192.168.1.0 will be | |
435 | # processed with priority 5 and shaped to rate of 128Kbit. | |
436 | # | |
437 | # Note that you can control outgoing traffic only. If you want to control | |
438 | # traffic in both directions, you must set up CBQ for both interfaces. | |
439 | # | |
440 | # Consider the following example: | |
441 | # | |
442 | # +---------+ 192.168.1.1 | |
443 | # BACKBONE -----eth0-| linux |-eth1------*-[client] | |
444 | # +---------+ | |
445 | # | |
446 | # Imagine you want to shape traffic from backbone to the client to 28Kbit | |
447 | # and traffic in the opposite direction to 128Kbit. You need to setup CBQ | |
448 | # on both eth0 and eth1 interfaces, thus you need two config files: | |
449 | # | |
450 | # cbq-028.backbone-client | |
451 | # -------------------------------------------------------------------------- | |
452 | # DEVICE=eth1,10Mbit,1Mbit | |
453 | # RATE=28Kbit | |
454 | # WEIGHT=2Kbit | |
455 | # PRIO=5 | |
456 | # RULE=192.168.1.1 | |
457 | # -------------------------------------------------------------------------- | |
458 | # | |
459 | # cbq-128.client-backbone | |
460 | # -------------------------------------------------------------------------- | |
461 | # DEVICE=eth0,10Mbit,1Mbit | |
462 | # RATE=128Kbit | |
463 | # WEIGHT=10Kbit | |
464 | # PRIO=5 | |
465 | # RULE=192.168.1.1, | |
466 | # -------------------------------------------------------------------------- | |
467 | # | |
468 | # Pay attention to comma "," in the RULE field - it denotes source address! | |
469 | # | |
470 | # Enjoy. | |
471 | # | |
472 | ############################################################################# | |
473 | ||
474 | export LC_ALL=C | |
475 | ||
476 | ### Command locations | |
477 | TC=/sbin/tc | |
478 | IP=/sbin/ip | |
479 | MP=/sbin/modprobe | |
480 | ||
481 | ### Default filter priorities (must be different) | |
482 | PRIO_RULE_DEFAULT=${PRIO_RULE:-100} | |
483 | PRIO_MARK_DEFAULT=${PRIO_MARK:-200} | |
484 | PRIO_REALM_DEFAULT=${PRIO_REALM:-300} | |
485 | ||
486 | ### Default CBQ_PATH & CBQ_CACHE settings | |
487 | CBQ_PATH=${CBQ_PATH:-/etc/sysconfig/cbq} | |
488 | CBQ_CACHE=${CBQ_CACHE:-/var/cache/cbq.init} | |
489 | ||
490 | ### Uncomment to enable logfile for debugging | |
491 | #CBQ_DEBUG="/var/run/cbq-$1" | |
492 | ||
493 | ### Modules to probe for. Uncomment the last CBQ_PROBE | |
494 | ### line if you have QoS support compiled into kernel | |
495 | CBQ_PROBE="sch_cbq sch_tbf sch_sfq sch_prio" | |
496 | CBQ_PROBE="$CBQ_PROBE cls_fw cls_u32 cls_route" | |
497 | #CBQ_PROBE="" | |
498 | ||
499 | ### Keywords required for qdisc & class configuration | |
500 | CBQ_WORDS="DEVICE|RATE|WEIGHT|PRIO|PARENT|LEAF|BOUNDED|ISOLATED" | |
501 | CBQ_WORDS="$CBQ_WORDS|PRIO_MARK|PRIO_RULE|PRIO_REALM|BUFFER" | |
502 | CBQ_WORDS="$CBQ_WORDS|LIMIT|PEAK|MTU|QUANTUM|PERTURB" | |
503 | ||
504 | ### Source AVPKT if it exists | |
505 | [ -r /etc/sysconfig/cbq/avpkt ] && . /etc/sysconfig/cbq/avpkt | |
506 | AVPKT=${AVPKT:-3000} | |
507 | ||
508 | ||
509 | ############################################################################# | |
510 | ############################# SUPPORT FUNCTIONS ############################# | |
511 | ############################################################################# | |
512 | ||
513 | ### Get list of network devices | |
514 | cbq_device_list () { | |
515 | ip link show| sed -n "/^[0-9]/ \ | |
516 | { s/^[0-9]\+: \([a-z0-9._]\+\)[:@].*/\1/; p; }" | |
517 | } # cbq_device_list | |
518 | ||
519 | ||
520 | ### Remove root class from device $1 | |
521 | cbq_device_off () { | |
522 | tc qdisc del dev $1 root 2> /dev/null | |
523 | } # cbq_device_off | |
524 | ||
525 | ||
526 | ### Remove CBQ from all devices | |
527 | cbq_off () { | |
528 | for dev in `cbq_device_list`; do | |
529 | cbq_device_off $dev | |
530 | done | |
531 | } # cbq_off | |
532 | ||
533 | ||
534 | ### Prefixed message | |
535 | cbq_message () { | |
536 | echo -e "**CBQ: $@" | |
537 | } # cbq_message | |
538 | ||
539 | ### Failure message | |
540 | cbq_failure () { | |
541 | cbq_message "$@" | |
542 | exit 1 | |
543 | } # cbq_failure | |
544 | ||
545 | ### Failure w/ cbq-off | |
546 | cbq_fail_off () { | |
547 | cbq_message "$@" | |
548 | cbq_off | |
549 | exit 1 | |
550 | } # cbq_fail_off | |
551 | ||
552 | ||
553 | ### Convert time to absolute value | |
554 | cbq_time2abs () { | |
555 | local min=${1##*:}; min=${min##0} | |
556 | local hrs=${1%%:*}; hrs=${hrs##0} | |
557 | echo $[hrs*60 + min] | |
558 | } # cbq_time2abs | |
559 | ||
560 | ||
561 | ### Display CBQ setup | |
562 | cbq_show () { | |
563 | for dev in `cbq_device_list`; do | |
564 | [ `tc qdisc show dev $dev| wc -l` -eq 0 ] && continue | |
565 | echo -e "### $dev: queueing disciplines\n" | |
566 | tc $1 qdisc show dev $dev; echo | |
567 | ||
568 | [ `tc class show dev $dev| wc -l` -eq 0 ] && continue | |
569 | echo -e "### $dev: traffic classes\n" | |
570 | tc $1 class show dev $dev; echo | |
571 | ||
572 | [ `tc filter show dev $dev| wc -l` -eq 0 ] && continue | |
573 | echo -e "### $dev: filtering rules\n" | |
574 | tc $1 filter show dev $dev; echo | |
575 | done | |
576 | } # cbq_show | |
577 | ||
578 | ||
579 | ### Check configuration and load DEVICES, DEVFIELDS and CLASSLIST from $1 | |
580 | cbq_init () { | |
581 | ### Get a list of configured classes | |
582 | CLASSLIST=`find $1 \( -type f -or -type l \) -name 'cbq-*' \ | |
583 | -not -name '*~' -maxdepth 1 -printf "%f\n"| sort` | |
584 | [ -z "$CLASSLIST" ] && | |
585 | cbq_failure "no configuration files found in $1!" | |
586 | ||
587 | ### Gather all DEVICE fields from $1/cbq-* | |
588 | DEVFIELDS=`find $1 \( -type f -or -type l \) -name 'cbq-*' \ | |
589 | -not -name '*~' -maxdepth 1| xargs sed -n 's/#.*//; \ | |
590 | s/[[:space:]]//g; /^DEVICE=[^,]*,[^,]*\(,[^,]*\)\?/ \ | |
591 | { s/.*=//; p; }'| sort -u` | |
592 | [ -z "$DEVFIELDS" ] && | |
593 | cbq_failure "no DEVICE field found in $1/cbq-*!" | |
594 | ||
595 | ### Check for different DEVICE fields for the same device | |
596 | DEVICES=`echo "$DEVFIELDS"| sed 's/,.*//'| sort -u` | |
597 | [ `echo "$DEVICES"| wc -l` -ne `echo "$DEVFIELDS"| wc -l` ] && | |
598 | cbq_failure "different DEVICE fields for single device!\n$DEVFIELDS" | |
599 | } # cbq_init | |
600 | ||
601 | ||
602 | ### Load class configuration from $1/$2 | |
603 | cbq_load_class () { | |
604 | CLASS=`echo $2| sed 's/^cbq-0*//; s/^\([0-9a-fA-F]\+\).*/\1/'` | |
605 | CFILE=`sed -n 's/#.*//; s/[[:space:]]//g; /^[[:alnum:]_]\+=[[:alnum:].,:;/*@-_]\+$/ p' $1/$2` | |
606 | ||
607 | ### Check class number | |
608 | IDVAL=`/usr/bin/printf "%d" 0x$CLASS 2> /dev/null` | |
609 | [ $? -ne 0 -o $IDVAL -lt 2 -o $IDVAL -gt 65535 ] && | |
610 | cbq_fail_off "class ID of $2 must be in range <0002-FFFF>!" | |
611 | ||
612 | ### Set defaults & load class | |
613 | RATE=""; WEIGHT=""; PARENT=""; PRIO=5 | |
614 | LEAF=tbf; BOUNDED=yes; ISOLATED=no | |
615 | BUFFER=10Kb/8; LIMIT=15Kb; MTU=1500 | |
616 | PEAK=""; PERTURB=10; QUANTUM="" | |
617 | ||
618 | PRIO_RULE=$PRIO_RULE_DEFAULT | |
619 | PRIO_MARK=$PRIO_MARK_DEFAULT | |
620 | PRIO_REALM=$PRIO_REALM_DEFAULT | |
621 | ||
622 | eval `echo "$CFILE"| grep -E "^($CBQ_WORDS)="` | |
623 | ||
624 | ### Require RATE/WEIGHT | |
625 | [ -z "$RATE" -o -z "$WEIGHT" ] && | |
626 | cbq_fail_off "missing RATE or WEIGHT in $2!" | |
627 | ||
628 | ### Class device | |
629 | DEVICE=${DEVICE%%,*} | |
630 | [ -z "$DEVICE" ] && cbq_fail_off "missing DEVICE field in $2!" | |
631 | ||
632 | BANDWIDTH=`echo "$DEVFIELDS"| sed -n "/^$DEVICE,/ \ | |
633 | { s/[^,]*,\([^,]*\).*/\1/; p; q; }"` | |
634 | ||
635 | ### Convert to "tc" options | |
636 | PEAK=${PEAK:+peakrate $PEAK} | |
637 | PERTURB=${PERTURB:+perturb $PERTURB} | |
638 | QUANTUM=${QUANTUM:+quantum $QUANTUM} | |
639 | ||
640 | [ "$BOUNDED" = "no" ] && BOUNDED="" || BOUNDED="bounded" | |
641 | [ "$ISOLATED" = "yes" ] && ISOLATED="isolated" || ISOLATED="" | |
642 | } # cbq_load_class | |
643 | ||
644 | ||
645 | ############################################################################# | |
646 | #################################### INIT ################################### | |
647 | ############################################################################# | |
648 | ||
649 | ### Check for presence of ip-route2 in usual place | |
650 | [ -x $TC -a -x $IP ] || | |
651 | cbq_failure "ip-route2 utilities not installed or executable!" | |
652 | ||
653 | ||
654 | ### ip/tc wrappers | |
655 | if [ "$1" = "compile" ]; then | |
656 | ### no module probing | |
657 | CBQ_PROBE="" | |
658 | ||
659 | ip () { | |
660 | $IP "$@" | |
661 | } # ip | |
662 | ||
663 | ### echo-only version of "tc" command | |
664 | tc () { | |
665 | echo "$TC $@" | |
666 | } # tc | |
667 | ||
668 | elif [ -n "$CBQ_DEBUG" ]; then | |
669 | echo -e "# `date`" > $CBQ_DEBUG | |
670 | ||
671 | ### Logging version of "ip" command | |
672 | ip () { | |
673 | echo -e "\n# ip $@" >> $CBQ_DEBUG | |
674 | $IP "$@" 2>&1 | tee -a $CBQ_DEBUG | |
675 | } # ip | |
676 | ||
677 | ### Logging version of "tc" command | |
678 | tc () { | |
679 | echo -e "\n# tc $@" >> $CBQ_DEBUG | |
680 | $TC "$@" 2>&1 | tee -a $CBQ_DEBUG | |
681 | } # tc | |
682 | else | |
683 | ### Default wrappers | |
684 | ||
685 | ip () { | |
686 | $IP "$@" | |
687 | } # ip | |
688 | ||
689 | tc () { | |
690 | $TC "$@" | |
691 | } # tc | |
692 | fi # ip/tc wrappers | |
693 | ||
694 | ||
695 | case "$1" in | |
696 | ||
697 | ############################################################################# | |
698 | ############################### START/COMPILE ############################### | |
699 | ############################################################################# | |
700 | ||
701 | start|compile) | |
702 | ||
703 | ### Probe QoS modules (start only) | |
704 | for module in $CBQ_PROBE; do | |
705 | $MP $module || cbq_failure "failed to load module $module" | |
706 | done | |
707 | ||
708 | ### If we are in compile/nocache/logging mode, don't bother with cache | |
709 | if [ "$1" != "compile" -a "$2" != "nocache" -a -z "$CBQ_DEBUG" ]; then | |
710 | VALID=1 | |
711 | ||
712 | ### validate the cache | |
713 | [ "$2" = "invalidate" -o ! -f $CBQ_CACHE ] && VALID=0 | |
714 | if [ $VALID -eq 1 ]; then | |
715 | [ `find $CBQ_PATH -maxdepth 1 -newer $CBQ_CACHE| \ | |
716 | wc -l` -gt 0 ] && VALID=0 | |
717 | fi | |
718 | ||
719 | ### compile the config if the cache is invalid | |
720 | if [ $VALID -ne 1 ]; then | |
721 | $0 compile > $CBQ_CACHE || | |
722 | cbq_fail_off "failed to compile CBQ configuration!" | |
723 | fi | |
724 | ||
725 | ### run the cached commands | |
726 | exec /bin/sh $CBQ_CACHE 2> /dev/null | |
727 | fi | |
728 | ||
729 | ### Load DEVICES, DEVFIELDS and CLASSLIST | |
730 | cbq_init $CBQ_PATH | |
731 | ||
732 | ||
733 | ### Setup root qdisc on all configured devices | |
734 | for dev in $DEVICES; do | |
735 | ### Retrieve device bandwidth and, optionally, weight | |
736 | DEVTEMP=`echo "$DEVFIELDS"| sed -n "/^$dev,/ { s/$dev,//; p; q; }"` | |
737 | DEVBWDT=${DEVTEMP%%,*}; DEVWGHT=${DEVTEMP##*,} | |
738 | [ "$DEVBWDT" = "$DEVWGHT" ] && DEVWGHT="" | |
739 | ||
740 | ### Device bandwidth is required | |
741 | if [ -z "$DEVBWDT" ]; then | |
742 | cbq_message "could not determine bandwidth for device $dev!" | |
743 | cbq_failure "please set up the DEVICE fields properly!" | |
744 | fi | |
745 | ||
746 | ### Check if the device is there | |
747 | ip link show $dev &> /dev/null || | |
748 | cbq_fail_off "device $dev not found!" | |
749 | ||
750 | ### Remove old root qdisc from device | |
751 | cbq_device_off $dev | |
752 | ||
753 | ||
754 | ### Setup root qdisc + class for device | |
755 | tc qdisc add dev $dev root handle 1 cbq \ | |
756 | bandwidth $DEVBWDT avpkt $AVPKT cell 8 | |
757 | ||
758 | ### Set weight of the root class if set | |
759 | [ -n "$DEVWGHT" ] && | |
760 | tc class change dev $dev root cbq weight $DEVWGHT allot 1514 | |
761 | ||
762 | [ "$1" = "compile" ] && echo | |
763 | done # dev | |
764 | ||
765 | ||
766 | ### Setup traffic classes | |
767 | for classfile in $CLASSLIST; do | |
768 | cbq_load_class $CBQ_PATH $classfile | |
769 | ||
770 | ### Create the class | |
771 | tc class add dev $DEVICE parent 1:$PARENT classid 1:$CLASS cbq \ | |
772 | bandwidth $BANDWIDTH rate $RATE weight $WEIGHT prio $PRIO \ | |
773 | allot 1514 cell 8 maxburst 20 avpkt $AVPKT $BOUNDED $ISOLATED || | |
774 | cbq_fail_off "failed to add class $CLASS with parent $PARENT on $DEVICE!" | |
775 | ||
776 | ### Create leaf qdisc if set | |
777 | if [ "$LEAF" = "tbf" ]; then | |
778 | tc qdisc add dev $DEVICE parent 1:$CLASS handle $CLASS tbf \ | |
779 | rate $RATE buffer $BUFFER limit $LIMIT mtu $MTU $PEAK | |
780 | elif [ "$LEAF" = "sfq" ]; then | |
781 | tc qdisc add dev $DEVICE parent 1:$CLASS handle $CLASS sfq \ | |
782 | $PERTURB $QUANTUM | |
783 | fi | |
784 | ||
785 | ||
786 | ### Create fw filter for MARK fields | |
787 | for mark in `echo "$CFILE"| sed -n '/^MARK/ { s/.*=//; p; }'`; do | |
788 | ### Attach fw filter to root class | |
789 | tc filter add dev $DEVICE parent 1:0 protocol ip \ | |
790 | prio $PRIO_MARK handle $mark fw classid 1:$CLASS | |
791 | done ### mark | |
792 | ||
793 | ### Create route filter for REALM fields | |
794 | for realm in `echo "$CFILE"| sed -n '/^REALM/ { s/.*=//; p; }'`; do | |
795 | ### Split realm into source & destination realms | |
796 | SREALM=${realm%%,*}; DREALM=${realm##*,} | |
797 | [ "$SREALM" = "$DREALM" ] && SREALM="" | |
798 | ||
799 | ### Convert asterisks to empty strings | |
800 | SREALM=${SREALM#\*}; DREALM=${DREALM#\*} | |
801 | ||
802 | ### Attach route filter to the root class | |
803 | tc filter add dev $DEVICE parent 1:0 protocol ip \ | |
804 | prio $PRIO_REALM route ${SREALM:+from $SREALM} \ | |
805 | ${DREALM:+to $DREALM} classid 1:$CLASS | |
806 | done ### realm | |
807 | ||
808 | ### Create u32 filter for RULE fields | |
809 | for rule in `echo "$CFILE"| sed -n '/^RULE/ { s/.*=//; p; }'`; do | |
810 | ### Split rule into source & destination | |
811 | SRC=${rule%%,*}; DST=${rule##*,} | |
812 | [ "$SRC" = "$rule" ] && SRC="" | |
813 | ||
814 | ||
815 | ### Split destination into address, port & mask fields | |
816 | DADDR=${DST%%:*}; DTEMP=${DST##*:} | |
817 | [ "$DADDR" = "$DST" ] && DTEMP="" | |
818 | ||
819 | DPORT=${DTEMP%%/*}; DMASK=${DTEMP##*/} | |
820 | [ "$DPORT" = "$DTEMP" ] && DMASK="0xffff" | |
821 | ||
822 | ||
823 | ### Split up source (if specified) | |
824 | SADDR=""; SPORT="" | |
825 | if [ -n "$SRC" ]; then | |
826 | SADDR=${SRC%%:*}; STEMP=${SRC##*:} | |
827 | [ "$SADDR" = "$SRC" ] && STEMP="" | |
828 | ||
829 | SPORT=${STEMP%%/*}; SMASK=${STEMP##*/} | |
830 | [ "$SPORT" = "$STEMP" ] && SMASK="0xffff" | |
831 | fi | |
832 | ||
833 | ||
834 | ### Convert asterisks to empty strings | |
835 | SADDR=${SADDR#\*}; DADDR=${DADDR#\*} | |
836 | ||
837 | ### Compose u32 filter rules | |
838 | u32_s="${SPORT:+match ip sport $SPORT $SMASK}" | |
839 | u32_s="${SADDR:+match ip src $SADDR} $u32_s" | |
840 | u32_d="${DPORT:+match ip dport $DPORT $DMASK}" | |
841 | u32_d="${DADDR:+match ip dst $DADDR} $u32_d" | |
842 | ||
843 | ### Uncomment the following if you want to see parsed rules | |
844 | #echo "$rule: $u32_s $u32_d" | |
845 | ||
846 | ### Attach u32 filter to the appropriate class | |
847 | tc filter add dev $DEVICE parent 1:0 protocol ip \ | |
848 | prio $PRIO_RULE u32 $u32_s $u32_d classid 1:$CLASS | |
849 | done ### rule | |
850 | ||
851 | [ "$1" = "compile" ] && echo | |
852 | done ### classfile | |
853 | ;; | |
854 | ||
855 | ||
856 | ############################################################################# | |
857 | ################################# TIME CHECK ################################ | |
858 | ############################################################################# | |
859 | ||
860 | timecheck) | |
861 | ||
862 | ### Get time + weekday | |
863 | TIME_TMP=`date +%w/%k:%M` | |
864 | TIME_DOW=${TIME_TMP%%/*} | |
865 | TIME_NOW=${TIME_TMP##*/} | |
866 | ||
867 | ### Load DEVICES, DEVFIELDS and CLASSLIST | |
868 | cbq_init $CBQ_PATH | |
869 | ||
870 | ### Run through all classes | |
871 | for classfile in $CLASSLIST; do | |
872 | ### Gather all TIME rules from class config | |
873 | TIMESET=`sed -n 's/#.*//; s/[[:space:]]//g; /^TIME/ { s/.*=//; p; }' \ | |
874 | $CBQ_PATH/$classfile` | |
875 | [ -z "$TIMESET" ] && continue | |
876 | ||
877 | MATCH=0; CHANGE=0 | |
878 | for timerule in $TIMESET; do | |
879 | TIME_ABS=`cbq_time2abs $TIME_NOW` | |
880 | ||
881 | ### Split TIME rule to pieces | |
882 | TIMESPEC=${timerule%%;*}; PARAMS=${timerule##*;} | |
883 | WEEKDAYS=${TIMESPEC%%/*}; INTERVAL=${TIMESPEC##*/} | |
884 | BEG_TIME=${INTERVAL%%-*}; END_TIME=${INTERVAL##*-} | |
885 | ||
886 | ### Check the day-of-week (if present) | |
887 | [ "$WEEKDAYS" != "$INTERVAL" -a \ | |
888 | -n "${WEEKDAYS##*$TIME_DOW*}" ] && continue | |
889 | ||
890 | ### Compute interval boundaries | |
891 | BEG_ABS=`cbq_time2abs $BEG_TIME` | |
892 | END_ABS=`cbq_time2abs $END_TIME` | |
893 | ||
894 | ### Midnight wrap fixup | |
895 | if [ $BEG_ABS -gt $END_ABS ]; then | |
896 | [ $TIME_ABS -le $END_ABS ] && | |
897 | TIME_ABS=$[TIME_ABS + 24*60] | |
898 | ||
899 | END_ABS=$[END_ABS + 24*60] | |
900 | fi | |
901 | ||
902 | ### If the time matches, remember params and set MATCH flag | |
903 | if [ $TIME_ABS -ge $BEG_ABS -a $TIME_ABS -lt $END_ABS ]; then | |
904 | TMP_RATE=${PARAMS%%/*}; PARAMS=${PARAMS#*/} | |
905 | TMP_WGHT=${PARAMS%%/*}; TMP_PEAK=${PARAMS##*/} | |
906 | ||
907 | [ "$TMP_PEAK" = "$TMP_WGHT" ] && TMP_PEAK="" | |
908 | TMP_PEAK=${TMP_PEAK:+peakrate $TMP_PEAK} | |
909 | ||
910 | MATCH=1 | |
911 | fi | |
912 | done ### timerule | |
913 | ||
914 | ||
915 | cbq_load_class $CBQ_PATH $classfile | |
916 | ||
917 | ### Get current RATE of CBQ class | |
918 | RATE_NOW=`tc class show dev $DEVICE| sed -n \ | |
919 | "/cbq 1:$CLASS / { s/.*rate //; s/ .*//; p; q; }"` | |
920 | [ -z "$RATE_NOW" ] && continue | |
921 | ||
922 | ### Time interval matched | |
923 | if [ $MATCH -ne 0 ]; then | |
924 | ||
925 | ### Check if there is any change in class RATE | |
926 | if [ "$RATE_NOW" != "$TMP_RATE" ]; then | |
927 | NEW_RATE="$TMP_RATE" | |
928 | NEW_WGHT="$TMP_WGHT" | |
929 | NEW_PEAK="$TMP_PEAK" | |
930 | CHANGE=1 | |
931 | fi | |
932 | ||
933 | ### Match not found, reset to default RATE if necessary | |
934 | elif [ "$RATE_NOW" != "$RATE" ]; then | |
935 | NEW_WGHT="$WEIGHT" | |
936 | NEW_RATE="$RATE" | |
937 | NEW_PEAK="$PEAK" | |
938 | CHANGE=1 | |
939 | fi | |
940 | ||
941 | ### If there are no changes, go for next class | |
942 | [ $CHANGE -eq 0 ] && continue | |
943 | ||
944 | ### Replace CBQ class | |
945 | tc class replace dev $DEVICE classid 1:$CLASS cbq \ | |
946 | bandwidth $BANDWIDTH rate $NEW_RATE weight $NEW_WGHT prio $PRIO \ | |
947 | allot 1514 cell 8 maxburst 20 avpkt $AVPKT $BOUNDED $ISOLATED | |
948 | ||
949 | ### Replace leaf qdisc (if any) | |
950 | if [ "$LEAF" = "tbf" ]; then | |
951 | tc qdisc replace dev $DEVICE handle $CLASS tbf \ | |
952 | rate $NEW_RATE buffer $BUFFER limit $LIMIT mtu $MTU $NEW_PEAK | |
953 | fi | |
954 | ||
955 | cbq_message "$TIME_NOW: class $CLASS on $DEVICE changed rate ($RATE_NOW -> $NEW_RATE)" | |
956 | done ### class file | |
957 | ;; | |
958 | ||
959 | ||
960 | ############################################################################# | |
961 | ################################## THE REST ################################# | |
962 | ############################################################################# | |
963 | ||
964 | stop) | |
965 | cbq_off | |
966 | ;; | |
967 | ||
968 | list) | |
969 | cbq_show | |
970 | ;; | |
971 | ||
972 | stats) | |
973 | cbq_show -s | |
974 | ;; | |
975 | ||
976 | restart) | |
977 | shift | |
978 | $0 stop | |
979 | $0 start "$@" | |
980 | ;; | |
981 | ||
982 | *) | |
983 | echo "Usage: `basename $0` {start|compile|stop|restart|timecheck|list|stats}" | |
984 | esac |