netscript-2.4-upstart 5.2.9ubuntu1 / etc / netscript / qos.conf

This file is indexed.

/etc/netscript/qos.conf is in netscript-2.4-upstart 5.2.9ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

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##############################################################################
# QoS/Fair queuing functions
###############################################################################

QOS_MODULES="sch_sfq sch_red sch_gred sch_cbq cls_fw"

echoMark () {
        local IFS='_'
	set -- $1
	echo $1
}

echoRate () {
	local IFS='_'
	set -- $1
	echo $2
}

echoAddParm () {
	local IFS='_'
	set -- $1
	shift 2
	echo "$@" 
}

ip_QoSppp () {
	
	# establish esistence of ppp Iface
	if ! echo $1 | grep '^ppp' > /dev/null 2>&1 ; then 
		return 0
	fi
	! [ -f /var/run/${1}.pid ] && return 0
	if ! kill -0 `cat /var/run/${1}.pid` > /dev/null 2>&1 ; then
		return 0
	fi

	# Get Unit number
	PPP_UNIT=`echo $1 | sed 's/^ppp\(.*\)$/\1/'`

	# Transform variables
	eval "$1"_HNDL1=$(( $PPP_UNIT + 8000 ))
	eval "$1"_HNDL2=$(( $PPP_UNIT + 9000 ))
	eval "$1"_FAIRQ=${ppp_FAIRQ:-}
	eval "$1"_BNDWIDTH=${ppp_BNDWIDTH:-}
	eval "$1"_PXMTU=${ppp_PXMTU:-}
	eval "$1"_CARATE=${ppp_CARATE:-}
	eval "$1"_IARATE=${ppp_IARATE:-}
	eval "$1"_IABURST=${ppp_IABURST:-}

	return 0
}

ip_QoSclear () {
        [ -x /sbin/tc ] \
                && qt tc qdisc del dev $1 root
        return 0
}
 
ip_QoS () {

        # Set some vaiables
        eval local HNDL1=\${"$1"_HNDL1:-""}
        eval local HNDL2=\${"$1"_HNDL2:-""}
        eval local FAIRQ=\${"$1"_FAIRQ:-""}
        eval local BNDWIDTH=\${"$1"_BNDWIDTH:-""}
        eval local PXMTU=\${"$1"_PXMTU:-""}
        eval local CARATE=\${"$1"_CARATE:-""}
        eval local IARATE=\${"$1"_IARATE:-""}
        eval local IABURST=\${"$1"_IABURST:-""}
	eval local SPQUEUE=\${"$1"_SPQUEUE:-""}
	eval local PEAKRATE=\${"$1"_PEAKRATE:-"$BNDWIDTH"}
	eval local BULKRATE=\${"$1"_BULKRATE:-"$CARATE"}

        if [ ! -x /sbin/tc ]; then
                return 1
        fi

        if [ "$FAIRQ" != "YES" -a "$FAIRQ" != "Yes" -a "$FAIRQ" != "yes" ]
        then
                return 1
        fi

	if [ -z "$BNDWIDTH" -o -z "$IABURST" -o -z "$IARATE" \
		-o -z "$PXMTU" -o -z "$CARATE" ]; then
		tc qdisc replace dev $1 root sfq
                return 0
        fi

	local IF_INDEX=`ip link | grep $1 | sed -e "s/^\([0-9]\+\): $1.*$/\1/"`
	
	if [ -z "$HNDL1" ]; then
		HNDL1=$(( $IF_INDEX * 10 + 1001 )) 
	fi
	
	if [ -z "$HNDL2" ]; then
		HNDL2=$(( $IF_INDEX * 10 + 1002 )) 
	fi
	
	# Attach CBQ  to device
        tc qdisc add dev $1 root handle $HNDL1: cbq \
                bandwidth $BNDWIDTH allot 1514 \
                avpkt 1000
	# Set up classes
        # Root class
	tc class add dev $1 parent $HNDL1:0 classid :1 est 1sec 8sec \
		cbq bandwidth $BNDWIDTH rate $PEAKRATE \
		allot $PXMTU avpkt 1000 bounded
	# Bulk class
	tc class add dev $1 parent $HNDL1:1 classid :2 est 1sec 8sec \
                cbq bandwidth $BNDWIDTH rate $CARATE \
                allot $PXMTU avpkt 1000 bounded prio 6 \
                split $HNDL1:0 defmap ff7f
        # Interactive class
        tc class add dev $1 parent $HNDL1:1 classid :3 est 2sec 16sec \
                cbq bandwidth $BNDWIDTH rate $IARATE maxburst $IABURST \
                allot $PXMTU avpkt 1000 bounded isolated \
                prio 2 split $HNDL1:0 defmap 80
        # Priority class
        tc class add dev $1 parent $HNDL1:1 classid :4 est 1sec 8sec \
                cbq bandwidth $BNDWIDTH rate $PEAKRATE \
                allot $PXMTU avpkt 1000 bounded prio 1

	# Attach queue disciplines
        tc qdisc add dev $1 parent $HNDL1:3 sfq perturb 15
        tc qdisc add dev $1 parent $HNDL1:4 pfifo
        # Add filters
        tc filter add dev $1 parent $HNDL1:0 protocol ip \
        	priority 50 handle $MRK_CRIT fw classid $HNDL1:4
	tc filter add dev $1 parent $HNDL1:0 protocol ip \
                priority 60 handle $MRK_IA fw classid $HNDL1:3
	
	# Set up bulk queue
	tc qdisc add dev $1 parent $HNDL1:2 handle $HNDL2: cbq \
		bandwidth $CARATE allot 1514 avpkt 1000
	tc class add dev $1 parent $HNDL2:0 classid :1 est 1sec 8sec \
		cbq bandwidth $CARATE rate $BULKRATE \
		allot $PXMTU avpkt 1000 prio 6 \
		split $HNDL2:0 defmap ffff
	tc qdisc add dev $1 parent $HNDL2:1 sfq perturb 15
	# tc qdisc add dev $1 parent $HNDL2:1 red min 10000 max 30000 limit 75000 avpkt 1000 burst 16 ecn probability 0.02 bandwidth $CARATE
	# Build special queueing
	local ID=2
	for QUEUE in $SPQUEUE; do
		local BOUNDED=`echoAddParm $QUEUE`
		# Add class and queue
        	tc class add dev $1 parent $HNDL2:0 classid :$ID \
	                est 1sec 8sec cbq bandwidth $BNDWIDTH \
			rate `echoRate $QUEUE` allot $PXMTU \
			$BOUNDED prio 6 \
			avpkt 1000
		tc qdisc add dev $1 parent $HNDL2:$ID sfq perturb 15
		#tc qdisc add dev $1 parent $HNDL2:$ID red ecn min 10000 max 30000 limit 75000 avpkt 1000 burst 16 ecn probability 0.02 bandwidth $BNDWIDTH
		# Add the filter
		tc filter add dev $1 parent $HNDL2:0 protocol ip \
			priority 70 handle `echoMark $QUEUE` fw \
			classid $HNDL2:$ID
		ID=$(($ID+1))
	done

        return 0
}

###############################################################################
# End
###############################################################################

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