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-#!/bin/bash
-#
-# cbq.init v0.7.3
-# Copyright (C) 1999 Pavel Golubev <pg@ksi-linux.com>
-# Copyright (C) 2001-2004 Lubomir Bulej <pallas@kadan.cz>
-#
-# chkconfig: 2345 11 89
-# description: sets up CBQ-based traffic control
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
-#
-# To get the latest version, check on Freshmeat for actual location:
-#
-# http://freshmeat.net/projects/cbq.init
-#
-#
-# VERSION HISTORY
-# ---------------
-# v0.7.3- Deepak Singhal <singhal at users.sourceforge.net>
-# - fix timecheck to not ignore regular TIME rules after
-# encountering a TIME rule that spans over midnight
-# - Nathan Shafer <nicodemus at users.sourceforge.net>
-# - allow symlinks to class files
-# - Seth J. Blank <antifreeze at users.sourceforge.net>
-# - replace hardcoded ip/tc location with variables
-# - Mark Davis <mark.davis at gmx.de>
-# - allow setting of PRIO_{MARK,RULE,REALM} in class file
-# - Fernando Sanch <toptnc at users.sourceforge.net>
-# - allow underscores in interface names
-# v0.7.2- Paulo Sedrez
-# - fix time2abs to allow hours with leading zero in TIME rules
-# - Svetlin Simeonov <zvero at yahoo.com>
-# - fix cbq_device_list to allow VLAN interfaces
-# - Mark Davis <mark.davis at gmx.de>
-# - ignore *~ backup files when looking for classes
-# - Mike Boyer <boyer at administrative.com>
-# - fix to allow arguments to be passed to "restart" command
-# v0.7.1- Lubomir Bulej <pallas at kadan.cz>
-# - default value for PERTURB
-# - fixed small bug in RULE parser to correctly parse rules with
-# identical source and destination fields
-# - faster initial scanning of DEVICE fields
-# v0.7 - Lubomir Bulej <pallas at kadan.cz>
-# - lots of various cleanups and reorganizations; the parsing is now
-# some 40% faster, but the class ID must be in range 0x0002-0xffff
-# (again). Because of the number of internal changes and the above
-# class ID restriction, I bumped the version to 0.7 to indicate
-# something might have got broken :)
-# - changed PRIO_{U32,FW,ROUTE} to PRIO_{RULE,MARK,REALM}
-# for consistency with filter keywords
-# - exposed "compile" command
-# - Catalin Petrescu <taz at dntis.ro>
-# - support for port masks in RULE (u32) filter
-# - Jordan Vrtanoski <obeliks at mt.net.mk>
-# - support for week days in TIME rules
-# v0.6.4- Lubomir Bulej <pallas at kadan.cz>
-# - added PRIO_* variables to allow easy control of filter priorities
-# - added caching to speed up CBQ start, the cache is invalidated
-# whenever any of the configuration files changes
-# - updated the readme section + some cosmetic fixes
-# v0.6.3- Lubomir Bulej <pallas at kadan.cz>
-# - removed setup of (unnecessary) class 1:1 - all classes
-# now use qdisc's default class 1:0 as their parent
-# - minor fix in the timecheck branch - classes
-# without leaf qdisc were not updated
-# - minor fix to avoid timecheck failure when run
-# at time with minutes equal to 08 or 09
-# - respect CBQ_PATH setting in environment
-# - made PRIO=5 default, rendering it optional in configs
-# - added support for route filter, see notes about REALM keyword
-# - added support for fw filter, see notes about MARK keyword
-# - added filter display to "list" and "stats" commands
-# - readme section update + various cosmetic fixes
-# v0.6.2- Catalin Petrescu <taz at dntis.ro>
-# - added tunnels interface handling
-# v0.6.1- Pavel Golubev <pg at ksi-linux.com>
-# - added sch_prio module loading
-# (thanks johan at iglo.virtual.or.id for reminding)
-# - resolved errors resulting from stricter syntax checking in bash2
-# - Lubomir Bulej <pallas at kadan.cz>
-# - various cosmetic fixes
-# v0.6 - Lubomir Bulej <pallas at kadan.cz>
-# - attempt to limit number of spawned processes by utilizing
-# more of sed power (use sed instead of grep+cut)
-# - simplified TIME parser, using bash builtins
-# - added initial support for SFQ as leaf qdisc
-# - reworked the documentation part a little
-# - incorporated pending patches and ideas submitted by
-# following people for versions 0.3 into version 0.6
-# - Miguel Freitas <miguel at cetuc.puc-rio.br>
-# - in case of overlapping TIME parameters, the last match is taken
-# - Juanjo Ciarlante <jjo at mendoza.gov.ar>
-# - chkconfig tags, list + stats startup parameters
-# - optional tc & ip command logging (into /var/run/cbq-*)
-# - Rafal Maszkowski <rzm at icm.edu.pl>
-# - PEAK parameter for setting TBF's burst peak rate
-# - fix for many config files (use find instead of ls)
-# v0.5.1- Lubomir Bulej <pallas at kadan.cz>
-# - fixed little but serious bug in RULE parser
-# v0.5 - Lubomir Bulej <pallas at kadan.cz>
-# - added options PARENT, LEAF, ISOLATED and BOUNDED. This allows
-# (with some attention to config file ordering) for creating
-# hierarchical structures of shapers with classes able (or unable)
-# to borrow bandwidth from their parents.
-# - class ID check allows hexadecimal numbers
-# - rewritten & simplified RULE parser
-# - cosmetic changes to improve readability
-# - reorganization to avoid duplicate code (timecheck etc.)
-# - timecheck doesn't check classes without TIME fields anymore
-# v0.4 - Lubomir Bulej <pallas at kadan.cz>
-# - small bugfix in RULE parsing code
-# - simplified configuration parsing code
-# - several small cosmetic changes
-# - TIME parameter can be now specified more than once allowing you to
-# differentiate RATE throughout the whole day. Time overlapping is
-# not checked, first match is taken. Midnight wrap (eg. 20:00-6:00)
-# is allowed and taken care of.
-# v0.3a4- fixed small bug in IF operator. Thanks to
-# Rafal Maszkowski <rzm at icm.edu.pl>
-# v0.3a3- fixed grep bug when using more than 10 eth devices. Thanks to David
-# Trcka <trcka at poda.cz>.
-# v0.3a2- fixed bug in "if" operator. Thanks kad at dgtu.donetsk.ua.
-# v0.3a - added TIME parameter. Example: TIME=00:00-19:00;64Kbit/6Kbit
-# So, between 00:00 and 19:00 the RATE will be 64Kbit.
-# Just start "cbq.init timecheck" periodically from cron
-# (every 10 minutes for example). DON'T FORGET though, to run
-# "cbq.init start" for CBQ to initialize.
-# v0.2 - Some cosmetic changes. Now it is more compatible with old bash
-# version. Thanks to Stanislav V. Voronyi <stas at cnti.uanet.kharkov.ua>.
-# v0.1 - First public release
-#
-#
-# README
-# ------
-#
-# First of all - this is just a SIMPLE EXAMPLE of CBQ power.
-# Don't ask me "why" and "how" :)
-#
-# This script is meant to simplify setup and management of relatively simple
-# CBQ-based traffic control on Linux. Access to advanced networking features
-# of Linux kernel is provided by "ip" and "tc" utilities from A. Kuznetsov's
-# iproute2 package, available at ftp://ftp.inr.ac.ru/ip-routing. Because the
-# utilities serve primarily to translate user wishes to RTNETLINK commands,
-# their interface is rather spartan, intolerant and requires quite a lot of
-# typing. And typing is what this script attempts to reduce :)
-#
-# The advanced networking stuff in Linux is pretty flexible and this script
-# aims to bring some of its features to the not-so-hard-core Linux users. Of
-# course, there is a tradeoff between simplicity and flexibility and you may
-# realize that the flexibility suffered too much for your needs -- time to
-# face "ip" and "tc" interface.
-#
-# To speed up the "start" command, simple caching was introduced in version
-# 0.6.4. The caching works so that the sequence of "tc" commands for given
-# configuration is stored in a file (/var/cache/cbq.init by default) which
-# is used next time the "start" command is run to avoid repeated parsing of
-# configuration files. This cache is invalidated whenever any of the CBQ
-# configuration files changes. If you want to run "cbq.init start" without
-# caching, run it as "cbq.init start nocache". If you want to force cache
-# invalidation, run it as "cbq.init start invalidate". Caching is disabled
-# if you have logging enabled (ie. CBQ_DEBUG is not empty).
-#
-# If you only want cqb.init to translate your configuration to "tc" commands,
-# use "compile" command which will output "tc" commands required to build
-# your configuration. Bear in mind that "compile" does not check if the "tc"
-# commands were successful - this is done (in certain places) only when the
-# "start nocache" command is used, which is also useful when creating the
-# configuration to check whether it is completely valid.
-#
-# All CBQ parameters are valid for Ethernet interfaces only, The script was
-# tested on various Linux kernel versions from series 2.1 to 2.4 and several
-# distributions with KSI Linux (Nostromo version) as the premier one.
-#
-#
-# HOW DOES IT WORK?
-# -----------------
-#
-# Every traffic class must be described by a file in the $CBQ_PATH directory
-# (/etc/sysconfig/cbq by default) - one file per class.
-#
-# The config file names must obey mandatory format: cbq-<clsid>.<name> where
-# <clsid> is two-byte hexadecimal number in range <0002-FFFF> (which in fact
-# is a CBQ class ID) and <name> is the name of the class -- anything to help
-# you distinguish the configuration files. For small amount of classes it is
-# often possible (and convenient) to let <clsid> resemble bandwidth of the
-# class.
-#
-# Example of valid config name:
-# cbq-1280.My_first_shaper
-#
-#
-# The configuration file may contain the following parameters:
-#
-### Device parameters
-#
-# DEVICE=<ifname>,<bandwidth>[,<weight>] mandatory
-# DEVICE=eth0,10Mbit,1Mbit
-#
-# <ifname> is the name of the interface you want to control
-# traffic on, e.g. eth0
-# <bandwidth> is the physical bandwidth of the device, e.g. for
-# ethernet 10Mbit or 100Mbit, for arcnet 2Mbit
-# <weight> is tuning parameter that should be proportional to
-# <bandwidth>. As a rule of thumb: <weight> = <bandwidth> / 10
-#
-# When you have more classes on one interface, it is enough to specify
-# <bandwidth> [and <weight>] only once, therefore in other files you only
-# need to set DEVICE=<ifname>.
-#
-### Class parameters
-#
-# RATE=<speed> mandatory
-# RATE=5Mbit
-#
-# Bandwidth allocated to the class. Traffic going through the class is
-# shaped to conform to specified rate. You can use Kbit, Mbit or bps,
-# Kbps and Mbps as suffices. If you don't specify any unit, bits/sec
-# are used. Also note that "bps" means "bytes per second", not bits.
-#
-# WEIGHT=<speed> mandatory
-# WEIGHT=500Kbit
-#
-# Tuning parameter that should be proportional to RATE. As a rule
-# of thumb, use WEIGHT ~= RATE / 10.
-#
-# PRIO=<1-8> optional, default 5
-# PRIO=5
-#
-# Priority of class traffic. The higher the number, the lesser
-# the priority. Priority of 5 is just fine.
-#
-# PARENT=<clsid> optional, default not set
-# PARENT=1280
-#
-# Specifies ID of the parent class to which you want this class be
-# attached. You might want to use LEAF=none for the parent class as
-# mentioned below. By using this parameter and carefully ordering the
-# configuration files, it is possible to create simple hierarchical
-# structures of CBQ classes. The ordering is important so that parent
-# classes are constructed prior to their children.
-#
-# LEAF=none|tbf|sfq optional, default "tbf"
-#
-# Tells the script to attach specified leaf queueing discipline to CBQ
-# class. By default, TBF is used. Note that attaching TBF to CBQ class
-# shapes the traffic to conform to TBF parameters and prevents the class
-# from borrowing bandwidth from its parent even if you have BOUNDED set
-# to "no". To allow the class to borrow bandwidth (provided it is not
-# bounded), you must set LEAF to "none" or "sfq".
-#
-# If you want to ensure (approximately) fair sharing of bandwidth among
-# several hosts in the same class, you might want to specify LEAF=sfq to
-# attach SFQ as leaf queueing discipline to that class.
-#
-# BOUNDED=yes|no optional, default "yes"
-#
-# If set to "yes", the class is not allowed to borrow bandwidth from
-# its parent class in overlimit situation. If set to "no", the class
-# will be allowed to borrow bandwidth from its parent.
-#
-# Note: Don't forget to set LEAF to "none" or "sfq", otherwise the class will
-# have TBF attached to itself and will not be able to borrow unused
-# bandwidth from its parent.
-#
-# ISOLATED=yes|no optional, default "no"
-#
-# If set to "yes", the class will not lend unused bandwidth to
-# its children.
-#
-### TBF qdisc parameters
-#
-# BUFFER=<bytes>[/<bytes>] optional, default "10Kb/8"
-#
-# This parameter controls the depth of the token bucket. In other
-# words it represents the maximal burst size the class can send.
-# The optional part of parameter is used to determine the length
-# of intervals in packet sizes, for which the transmission times
-# are kept.
-#
-# LIMIT=<bytes> optional, default "15Kb"
-#
-# This parameter determines the maximal length of backlog. If
-# the queue contains more data than specified by LIMIT, the
-# newly arriving packets are dropped. The length of backlog
-# determines queue latency in case of congestion.
-#
-# PEAK=<speed> optional, default not set
-#
-# Maximal peak rate for short-term burst traffic. This allows you
-# to control the absolute peak rate the class can send at, because
-# single TBF that allows 256Kbit/s would of course allow rate of
-# 512Kbit for half a second or 1Mbit for a quarter of second.
-#
-# MTU=<bytes> optional, default "1500"
-#
-# Maximum number of bytes that can be sent at once over the
-# physical medium. This parameter is required when you specify
-# PEAK parameter. It defaults to MTU of ethernet - for other
-# media types you might want to change it.
-#
-# Note: Setting TBF as leaf qdisc will effectively prevent the class from
-# borrowing bandwidth from the ancestor class, because even if the
-# class allows more traffic to pass through, it is then shaped to
-# conform to TBF.
-#
-### SFQ qdisc parameters
-#
-# The SFQ queueing discipline is a cheap way for sharing class bandwidth
-# among several hosts. As it is stochastic, the fairness is approximate but
-# it will do the job in most cases. If you want real fairness, you should
-# probably use WRR (weighted round robin) or WFQ queueing disciplines. Note
-# that SFQ does not do any traffic shaping - the shaping is done by the CBQ
-# class the SFQ is attached to.
-#
-# QUANTUM=<bytes> optional, default not set
-#
-# This parameter should not be set lower than link MTU, for ethernet
-# it is 1500b, or (with MAC header) 1514b which is the value used
-# in Alexey Kuznetsov's examples.
-#
-# PERTURB=<seconds> optional, default "10"
-#
-# Period of hash function perturbation. If unset, hash reconfiguration
-# will never take place which is what you probably don't want. The
-# default value of 10 seconds is probably a good one.
-#
-### Filter parameters
-#
-# RULE=[[saddr[/prefix]][:port[/mask]],][daddr[/prefix]][:port[/mask]]
-#
-# These parameters make up "u32" filter rules that select traffic for
-# each of the classes. You can use multiple RULE fields per config.
-#
-# The optional port mask should only be used by advanced users who
-# understand how the u32 filter works.
-#
-# Some examples:
-#
-# RULE=10.1.1.0/24:80
-# selects traffic going to port 80 in network 10.1.1.0
-#
-# RULE=10.2.2.5
-# selects traffic going to any port on single host 10.2.2.5
-#
-# RULE=10.2.2.5:20/0xfffe
-# selects traffic going to ports 20 and 21 on host 10.2.2.5
-#
-# RULE=:25,10.2.2.128/26:5000
-# selects traffic going from anywhere on port 50 to
-# port 5000 in network 10.2.2.128
-#
-# RULE=10.5.5.5:80,
-# selects traffic going from port 80 of single host 10.5.5.5
-#
-#
-#
-# REALM=[srealm,][drealm]
-#
-# These parameters make up "route" filter rules that classify traffic
-# according to packet source/destination realms. For information about
-# realms, see Alexey Kuznetsov's IP Command Reference. This script
-# does not define any realms, it justs builds "tc filter" commands
-# for you if you need to classify traffic this way.
-#
-# Realm is either a decimal number or a string referencing entry in
-# /etc/iproute2/rt_realms (usually).
-#
-# Some examples:
-#
-# REALM=russia,internet
-# selects traffic going from realm "russia" to realm "internet"
-#
-# REALM=freenet,
-# selects traffic going from realm "freenet"
-#
-# REALM=10
-# selects traffic going to realm 10
-#
-#
-#
-# MARK=<mark>
-#
-# These parameters make up "fw" filter rules that select traffic for
-# each of the classes according to firewall "mark". Mark is a decimal
-# number packets are tagged with if firewall rules say so. You can
-# use multiple MARK fields per config.
-#
-#
-# Note: Rules for different filter types can be combined. Attention must be
-# paid to the priority of filter rules, which can be set below using
-# PRIO_{RULE,MARK,REALM} variables.
-#
-### Time ranging parameters
-#
-# TIME=[<dow>,<dow>, ...,<dow>/]<from>-<till>;<rate>/<weight>[/<peak>]
-# TIME=0,1,2,5/18:00-06:00;256Kbit/25Kbit
-# TIME=60123/18:00-06:00;256Kbit/25Kbit
-# TIME=18:00-06:00;256Kbit/25Kbit
-#
-# This parameter allows you to differentiate the class bandwidth
-# throughout the day. You can specify multiple TIME parameters, if
-# the times overlap, last match is taken. The fields <rate>, <weight>
-# and <peak> correspond to parameters RATE, WEIGHT and PEAK (which
-# is optional and applies to TBF leaf qdisc only).
-#
-# You can also specify days of week when the TIME rule applies. <dow>
-# is numeric, 0 corresponds to sunday, 1 corresponds to monday, etc.
-#
-###
-#
-# Sample configuration file: cbq-1280.My_first_shaper
-#
-# --------------------------------------------------------------------------
-# DEVICE=eth0,10Mbit,1Mbit
-# RATE=128Kbit
-# WEIGHT=10Kbit
-# PRIO=5
-# RULE=192.128.1.0/24
-# --------------------------------------------------------------------------
-#
-# The configuration says that we will control traffic on 10Mbit ethernet
-# device eth0 and the traffic going to network 192.168.1.0 will be
-# processed with priority 5 and shaped to rate of 128Kbit.
-#
-# Note that you can control outgoing traffic only. If you want to control
-# traffic in both directions, you must set up CBQ for both interfaces.
-#
-# Consider the following example:
-#
-# +---------+ 192.168.1.1
-# BACKBONE -----eth0-| linux |-eth1------*-[client]
-# +---------+
-#
-# Imagine you want to shape traffic from backbone to the client to 28Kbit
-# and traffic in the opposite direction to 128Kbit. You need to setup CBQ
-# on both eth0 and eth1 interfaces, thus you need two config files:
-#
-# cbq-028.backbone-client
-# --------------------------------------------------------------------------
-# DEVICE=eth1,10Mbit,1Mbit
-# RATE=28Kbit
-# WEIGHT=2Kbit
-# PRIO=5
-# RULE=192.168.1.1
-# --------------------------------------------------------------------------
-#
-# cbq-128.client-backbone
-# --------------------------------------------------------------------------
-# DEVICE=eth0,10Mbit,1Mbit
-# RATE=128Kbit
-# WEIGHT=10Kbit
-# PRIO=5
-# RULE=192.168.1.1,
-# --------------------------------------------------------------------------
-#
-# Pay attention to comma "," in the RULE field - it denotes source address!
-#
-# Enjoy.
-#
-#############################################################################
-
-export LC_ALL=C
-
-### Command locations
-TC=/sbin/tc
-IP=/sbin/ip
-MP=/sbin/modprobe
-
-### Default filter priorities (must be different)
-PRIO_RULE_DEFAULT=${PRIO_RULE:-100}
-PRIO_MARK_DEFAULT=${PRIO_MARK:-200}
-PRIO_REALM_DEFAULT=${PRIO_REALM:-300}
-
-### Default CBQ_PATH & CBQ_CACHE settings
-CBQ_PATH=${CBQ_PATH:-/etc/sysconfig/cbq}
-CBQ_CACHE=${CBQ_CACHE:-/var/cache/cbq.init}
-
-### Uncomment to enable logfile for debugging
-#CBQ_DEBUG="/var/run/cbq-$1"
-
-### Modules to probe for. Uncomment the last CBQ_PROBE
-### line if you have QoS support compiled into kernel
-CBQ_PROBE="sch_cbq sch_tbf sch_sfq sch_prio"
-CBQ_PROBE="$CBQ_PROBE cls_fw cls_u32 cls_route"
-#CBQ_PROBE=""
-
-### Keywords required for qdisc & class configuration
-CBQ_WORDS="DEVICE|RATE|WEIGHT|PRIO|PARENT|LEAF|BOUNDED|ISOLATED"
-CBQ_WORDS="$CBQ_WORDS|PRIO_MARK|PRIO_RULE|PRIO_REALM|BUFFER"
-CBQ_WORDS="$CBQ_WORDS|LIMIT|PEAK|MTU|QUANTUM|PERTURB"
-
-### Source AVPKT if it exists
-[ -r /etc/sysconfig/cbq/avpkt ] && . /etc/sysconfig/cbq/avpkt
-AVPKT=${AVPKT:-3000}
-
-
-#############################################################################
-############################# SUPPORT FUNCTIONS #############################
-#############################################################################
-
-### Get list of network devices
-cbq_device_list () {
- ip link show| sed -n "/^[0-9]/ \
- { s/^[0-9]\+: \([a-z0-9._]\+\)[:@].*/\1/; p; }"
-} # cbq_device_list
-
-
-### Remove root class from device $1
-cbq_device_off () {
- tc qdisc del dev $1 root 2> /dev/null
-} # cbq_device_off
-
-
-### Remove CBQ from all devices
-cbq_off () {
- for dev in `cbq_device_list`; do
- cbq_device_off $dev
- done
-} # cbq_off
-
-
-### Prefixed message
-cbq_message () {
- echo -e "**CBQ: $*"
-} # cbq_message
-
-### Failure message
-cbq_failure () {
- cbq_message "$@"
- exit 1
-} # cbq_failure
-
-### Failure w/ cbq-off
-cbq_fail_off () {
- cbq_message "$@"
- cbq_off
- exit 1
-} # cbq_fail_off
-
-
-### Convert time to absolute value
-cbq_time2abs () {
- local min=${1##*:}; min=${min##0}
- local hrs=${1%%:*}; hrs=${hrs##0}
- echo $[hrs*60 + min]
-} # cbq_time2abs
-
-
-### Display CBQ setup
-cbq_show () {
- for dev in `cbq_device_list`; do
- [ "`tc qdisc show dev $dev| wc -l`" -eq 0 ] && continue
- echo -e "### $dev: queueing disciplines\n"
- tc $1 qdisc show dev $dev; echo
-
- [ "`tc class show dev $dev| wc -l`" -eq 0 ] && continue
- echo -e "### $dev: traffic classes\n"
- tc $1 class show dev $dev; echo
-
- [ "`tc filter show dev $dev| wc -l`" -eq 0 ] && continue
- echo -e "### $dev: filtering rules\n"
- tc $1 filter show dev $dev; echo
- done
-} # cbq_show
-
-
-### Check configuration and load DEVICES, DEVFIELDS and CLASSLIST from $1
-cbq_init () {
- ### Get a list of configured classes
- CLASSLIST=`find $1 -maxdepth 1 \( -type f -or -type l \) -name 'cbq-*' \
- -not -name '*~' -printf "%f\n"| sort`
- [ -z "$CLASSLIST" ] &&
- cbq_failure "no configuration files found in $1!"
-
- ### Gather all DEVICE fields from $1/cbq-*
- DEVFIELDS=`find $1 -maxdepth 1 \( -type f -or -type l \) -name 'cbq-*' \
- -not -name '*~' -print0 | xargs -0 sed -n 's/#.*//; \
- s/[[:space:]]//g; /^DEVICE=[^,]*,[^,]*\(,[^,]*\)\?/ \
- { s/.*=//; p; }'| sort -u`
- [ -z "$DEVFIELDS" ] &&
- cbq_failure "no DEVICE field found in $1/cbq-*!"
-
- ### Check for different DEVICE fields for the same device
- DEVICES=`echo "$DEVFIELDS"| sed 's/,.*//'| sort -u`
- [ "`echo "$DEVICES"| wc -l`" -ne "`echo "$DEVFIELDS"| wc -l`" ] &&
- cbq_failure "different DEVICE fields for single device!\n$DEVFIELDS"
-} # cbq_init
-
-
-### Load class configuration from $1/$2
-cbq_load_class () {
- CLASS=`echo $2| sed 's/^cbq-0*//; s/^\([0-9a-fA-F]\+\).*/\1/'`
- CFILE=`sed -n 's/#.*//; s/[[:space:]]//g; /^[[:alnum:]_]\+=[[:alnum:].,:;/*@-_]\+$/ p' $1/$2`
-
- ### Check class number
- IDVAL=`/usr/bin/printf "%d" 0x$CLASS 2> /dev/null`
- [ $? -ne 0 -o $IDVAL -lt 2 -o $IDVAL -gt 65535 ] &&
- cbq_fail_off "class ID of $2 must be in range <0002-FFFF>!"
-
- ### Set defaults & load class
- RATE=""; WEIGHT=""; PARENT=""; PRIO=5
- LEAF=tbf; BOUNDED=yes; ISOLATED=no
- BUFFER=10Kb/8; LIMIT=15Kb; MTU=1500
- PEAK=""; PERTURB=10; QUANTUM=""
-
- PRIO_RULE=$PRIO_RULE_DEFAULT
- PRIO_MARK=$PRIO_MARK_DEFAULT
- PRIO_REALM=$PRIO_REALM_DEFAULT
-
- eval "`echo "$CFILE"| grep -E "^($CBQ_WORDS)="`"
-
- ### Require RATE/WEIGHT
- [ -z "$RATE" -o -z "$WEIGHT" ] &&
- cbq_fail_off "missing RATE or WEIGHT in $2!"
-
- ### Class device
- DEVICE=${DEVICE%%,*}
- [ -z "$DEVICE" ] && cbq_fail_off "missing DEVICE field in $2!"
-
- BANDWIDTH=`echo "$DEVFIELDS"| sed -n "/^$DEVICE,/ \
- { s/[^,]*,\([^,]*\).*/\1/; p; q; }"`
-
- ### Convert to "tc" options
- PEAK=${PEAK:+peakrate $PEAK}
- PERTURB=${PERTURB:+perturb $PERTURB}
- QUANTUM=${QUANTUM:+quantum $QUANTUM}
-
- [ "$BOUNDED" = "no" ] && BOUNDED="" || BOUNDED="bounded"
- [ "$ISOLATED" = "yes" ] && ISOLATED="isolated" || ISOLATED=""
-} # cbq_load_class
-
-
-#############################################################################
-#################################### INIT ###################################
-#############################################################################
-
-### Check for presence of ip-route2 in usual place
-[ -x $TC -a -x $IP ] ||
- cbq_failure "ip-route2 utilities not installed or executable!"
-
-
-### ip/tc wrappers
-if [ "$1" = "compile" ]; then
- ### no module probing
- CBQ_PROBE=""
-
- ip () {
- $IP "$@"
- } # ip
-
- ### echo-only version of "tc" command
- tc () {
- echo "$TC $*"
- } # tc
-
-elif [ -n "$CBQ_DEBUG" ]; then
- echo -e "# `date`" > $CBQ_DEBUG
-
- ### Logging version of "ip" command
- ip () {
- echo -e "\n# ip $*" >> $CBQ_DEBUG
- $IP "$@" 2>&1 | tee -a $CBQ_DEBUG
- } # ip
-
- ### Logging version of "tc" command
- tc () {
- echo -e "\n# tc $*" >> $CBQ_DEBUG
- $TC "$@" 2>&1 | tee -a $CBQ_DEBUG
- } # tc
-else
- ### Default wrappers
-
- ip () {
- $IP "$@"
- } # ip
-
- tc () {
- $TC "$@"
- } # tc
-fi # ip/tc wrappers
-
-
-case "$1" in
-
-#############################################################################
-############################### START/COMPILE ###############################
-#############################################################################
-
-start|compile)
-
-### Probe QoS modules (start only)
-for module in $CBQ_PROBE; do
- $MP $module || cbq_failure "failed to load module $module"
-done
-
-### If we are in compile/nocache/logging mode, don't bother with cache
-if [ "$1" != "compile" -a "$2" != "nocache" -a -z "$CBQ_DEBUG" ]; then
- VALID=1
-
- ### validate the cache
- [ "$2" = "invalidate" -o ! -f $CBQ_CACHE ] && VALID=0
- if [ $VALID -eq 1 ]; then
- [ "`find $CBQ_PATH -maxdepth 1 -newer $CBQ_CACHE| \
- wc -l`" -gt 0 ] && VALID=0
- fi
-
- ### compile the config if the cache is invalid
- if [ $VALID -ne 1 ]; then
- $0 compile > $CBQ_CACHE ||
- cbq_fail_off "failed to compile CBQ configuration!"
- fi
-
- ### run the cached commands
- exec /bin/sh $CBQ_CACHE 2> /dev/null
-fi
-
-### Load DEVICES, DEVFIELDS and CLASSLIST
-cbq_init $CBQ_PATH
-
-
-### Setup root qdisc on all configured devices
-for dev in $DEVICES; do
- ### Retrieve device bandwidth and, optionally, weight
- DEVTEMP=`echo "$DEVFIELDS"| sed -n "/^$dev,/ { s/$dev,//; p; q; }"`
- DEVBWDT=${DEVTEMP%%,*}; DEVWGHT=${DEVTEMP##*,}
- [ "$DEVBWDT" = "$DEVWGHT" ] && DEVWGHT=""
-
- ### Device bandwidth is required
- if [ -z "$DEVBWDT" ]; then
- cbq_message "could not determine bandwidth for device $dev!"
- cbq_failure "please set up the DEVICE fields properly!"
- fi
-
- ### Check if the device is there
- ip link show $dev &> /dev/null ||
- cbq_fail_off "device $dev not found!"
-
- ### Remove old root qdisc from device
- cbq_device_off $dev
-
-
- ### Setup root qdisc + class for device
- tc qdisc add dev $dev root handle 1 cbq \
- bandwidth $DEVBWDT avpkt $AVPKT cell 8
-
- ### Set weight of the root class if set
- [ -n "$DEVWGHT" ] &&
- tc class change dev $dev root cbq weight $DEVWGHT allot 1514
-
- [ "$1" = "compile" ] && echo
-done # dev
-
-
-### Setup traffic classes
-for classfile in $CLASSLIST; do
- cbq_load_class $CBQ_PATH $classfile
-
- ### Create the class
- tc class add dev $DEVICE parent 1:$PARENT classid 1:$CLASS cbq \
- bandwidth $BANDWIDTH rate $RATE weight $WEIGHT prio $PRIO \
- allot 1514 cell 8 maxburst 20 avpkt $AVPKT $BOUNDED $ISOLATED ||
- cbq_fail_off "failed to add class $CLASS with parent $PARENT on $DEVICE!"
-
- ### Create leaf qdisc if set
- if [ "$LEAF" = "tbf" ]; then
- tc qdisc add dev $DEVICE parent 1:$CLASS handle $CLASS tbf \
- rate $RATE buffer $BUFFER limit $LIMIT mtu $MTU $PEAK
- elif [ "$LEAF" = "sfq" ]; then
- tc qdisc add dev $DEVICE parent 1:$CLASS handle $CLASS sfq \
- $PERTURB $QUANTUM
- fi
-
-
- ### Create fw filter for MARK fields
- for mark in `echo "$CFILE"| sed -n '/^MARK/ { s/.*=//; p; }'`; do
- ### Attach fw filter to root class
- tc filter add dev $DEVICE parent 1:0 protocol ip \
- prio $PRIO_MARK handle $mark fw classid 1:$CLASS
- done ### mark
-
- ### Create route filter for REALM fields
- for realm in `echo "$CFILE"| sed -n '/^REALM/ { s/.*=//; p; }'`; do
- ### Split realm into source & destination realms
- SREALM=${realm%%,*}; DREALM=${realm##*,}
- [ "$SREALM" = "$DREALM" ] && SREALM=""
-
- ### Convert asterisks to empty strings
- SREALM=${SREALM#\*}; DREALM=${DREALM#\*}
-
- ### Attach route filter to the root class
- tc filter add dev $DEVICE parent 1:0 protocol ip \
- prio $PRIO_REALM route ${SREALM:+from $SREALM} \
- ${DREALM:+to $DREALM} classid 1:$CLASS
- done ### realm
-
- ### Create u32 filter for RULE fields
- for rule in `echo "$CFILE"| sed -n '/^RULE/ { s/.*=//; p; }'`; do
- ### Split rule into source & destination
- SRC=${rule%%,*}; DST=${rule##*,}
- [ "$SRC" = "$rule" ] && SRC=""
-
-
- ### Split destination into address, port & mask fields
- DADDR=${DST%%:*}; DTEMP=${DST##*:}
- [ "$DADDR" = "$DST" ] && DTEMP=""
-
- DPORT=${DTEMP%%/*}; DMASK=${DTEMP##*/}
- [ "$DPORT" = "$DTEMP" ] && DMASK="0xffff"
-
-
- ### Split up source (if specified)
- SADDR=""; SPORT=""
- if [ -n "$SRC" ]; then
- SADDR=${SRC%%:*}; STEMP=${SRC##*:}
- [ "$SADDR" = "$SRC" ] && STEMP=""
-
- SPORT=${STEMP%%/*}; SMASK=${STEMP##*/}
- [ "$SPORT" = "$STEMP" ] && SMASK="0xffff"
- fi
-
-
- ### Convert asterisks to empty strings
- SADDR=${SADDR#\*}; DADDR=${DADDR#\*}
-
- ### Compose u32 filter rules
- u32_s="${SPORT:+match ip sport $SPORT $SMASK}"
- u32_s="${SADDR:+match ip src $SADDR} $u32_s"
- u32_d="${DPORT:+match ip dport $DPORT $DMASK}"
- u32_d="${DADDR:+match ip dst $DADDR} $u32_d"
-
- ### Uncomment the following if you want to see parsed rules
- #echo "$rule: $u32_s $u32_d"
-
- ### Attach u32 filter to the appropriate class
- tc filter add dev $DEVICE parent 1:0 protocol ip \
- prio $PRIO_RULE u32 $u32_s $u32_d classid 1:$CLASS
- done ### rule
-
- [ "$1" = "compile" ] && echo
-done ### classfile
-;;
-
-
-#############################################################################
-################################# TIME CHECK ################################
-#############################################################################
-
-timecheck)
-
-### Get time + weekday
-TIME_TMP=`date +%w/%k:%M`
-TIME_DOW=${TIME_TMP%%/*}
-TIME_NOW=${TIME_TMP##*/}
-
-### Load DEVICES, DEVFIELDS and CLASSLIST
-cbq_init $CBQ_PATH
-
-### Run through all classes
-for classfile in $CLASSLIST; do
- ### Gather all TIME rules from class config
- TIMESET=`sed -n 's/#.*//; s/[[:space:]]//g; /^TIME/ { s/.*=//; p; }' \
- $CBQ_PATH/$classfile`
- [ -z "$TIMESET" ] && continue
-
- MATCH=0; CHANGE=0
- for timerule in $TIMESET; do
- TIME_ABS=`cbq_time2abs $TIME_NOW`
-
- ### Split TIME rule to pieces
- TIMESPEC=${timerule%%;*}; PARAMS=${timerule##*;}
- WEEKDAYS=${TIMESPEC%%/*}; INTERVAL=${TIMESPEC##*/}
- BEG_TIME=${INTERVAL%%-*}; END_TIME=${INTERVAL##*-}
-
- ### Check the day-of-week (if present)
- [ "$WEEKDAYS" != "$INTERVAL" -a \
- -n "${WEEKDAYS##*$TIME_DOW*}" ] && continue
-
- ### Compute interval boundaries
- BEG_ABS=`cbq_time2abs $BEG_TIME`
- END_ABS=`cbq_time2abs $END_TIME`
-
- ### Midnight wrap fixup
- if [ $BEG_ABS -gt $END_ABS ]; then
- [ $TIME_ABS -le $END_ABS ] &&
- TIME_ABS=$[TIME_ABS + 24*60]
-
- END_ABS=$[END_ABS + 24*60]
- fi
-
- ### If the time matches, remember params and set MATCH flag
- if [ $TIME_ABS -ge $BEG_ABS -a $TIME_ABS -lt $END_ABS ]; then
- TMP_RATE=${PARAMS%%/*}; PARAMS=${PARAMS#*/}
- TMP_WGHT=${PARAMS%%/*}; TMP_PEAK=${PARAMS##*/}
-
- [ "$TMP_PEAK" = "$TMP_WGHT" ] && TMP_PEAK=""
- TMP_PEAK=${TMP_PEAK:+peakrate $TMP_PEAK}
-
- MATCH=1
- fi
- done ### timerule
-
-
- cbq_load_class $CBQ_PATH $classfile
-
- ### Get current RATE of CBQ class
- RATE_NOW=`tc class show dev $DEVICE| sed -n \
- "/cbq 1:$CLASS / { s/.*rate //; s/ .*//; p; q; }"`
- [ -z "$RATE_NOW" ] && continue
-
- ### Time interval matched
- if [ $MATCH -ne 0 ]; then
-
- ### Check if there is any change in class RATE
- if [ "$RATE_NOW" != "$TMP_RATE" ]; then
- NEW_RATE="$TMP_RATE"
- NEW_WGHT="$TMP_WGHT"
- NEW_PEAK="$TMP_PEAK"
- CHANGE=1
- fi
-
- ### Match not found, reset to default RATE if necessary
- elif [ "$RATE_NOW" != "$RATE" ]; then
- NEW_WGHT="$WEIGHT"
- NEW_RATE="$RATE"
- NEW_PEAK="$PEAK"
- CHANGE=1
- fi
-
- ### If there are no changes, go for next class
- [ $CHANGE -eq 0 ] && continue
-
- ### Replace CBQ class
- tc class replace dev $DEVICE classid 1:$CLASS cbq \
- bandwidth $BANDWIDTH rate $NEW_RATE weight $NEW_WGHT prio $PRIO \
- allot 1514 cell 8 maxburst 20 avpkt $AVPKT $BOUNDED $ISOLATED
-
- ### Replace leaf qdisc (if any)
- if [ "$LEAF" = "tbf" ]; then
- tc qdisc replace dev $DEVICE handle $CLASS tbf \
- rate $NEW_RATE buffer $BUFFER limit $LIMIT mtu $MTU $NEW_PEAK
- fi
-
- cbq_message "$TIME_NOW: class $CLASS on $DEVICE changed rate ($RATE_NOW -> $NEW_RATE)"
-done ### class file
-;;
-
-
-#############################################################################
-################################## THE REST #################################
-#############################################################################
-
-stop)
- cbq_off
- ;;
-
-list)
- cbq_show
- ;;
-
-stats)
- cbq_show -s
- ;;
-
-restart)
- shift
- $0 stop
- $0 start "$@"
- ;;
-
-*)
- echo "Usage: `basename $0` {start|compile|stop|restart|timecheck|list|stats}"
-esac
This script is obsolete. Signed-off-by: Petr Vorel <petr.vorel@gmail.com> --- examples/cbq.init-v0.7.3 | 983 --------------------------------------- 1 file changed, 983 deletions(-) delete mode 100644 examples/cbq.init-v0.7.3