shemminger | 8c564a4 | 2005-10-12 22:46:23 +0000 | [diff] [blame] | 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 |